Device and method for measuring environmental response ability of plant heterogeneous patches

Abstract

The present invention discloses a device for measuring the environmental response ability of plant heterogeneous patches, wherein the above-ground heterogeneous response ability test area of ​​the plant is used to provide a growth environment for the part of the plant that is exposed upward from the plant fixing and preliminary growth area; the plant fixing and preliminary growth area is used for sowing; after the seeds take root, the roots can extend downward from the bottom of the plant fixing and preliminary growth area to the plant underground heterogeneous response ability test area, and the plant underground heterogeneous response ability test area is used to simulate the plant roots in different stresses or different nutritional environments; the bottom of the light shield is open, and the part of the plant that is exposed from the plant fixing and preliminary growth area can be covered in the light shield; the light shield is provided with a plurality of openings, and each opening is connected with a cover sheet. The present invention also discloses a method for measuring the environmental response ability of plant heterogeneity. The present invention has the advantage of measuring the environmental response ability of the same plant heterogeneity by multiple factors.

Description

Technical Field

[0001] The invention relates to the technical field of plant response ability to the environment, and in particular to a device and a method for measuring the environmental response ability of plant heterogeneous patches. Background Art

[0002] During plant growth, plants are affected by the heterogeneous patch environment of the aboveground and underground parts. The aboveground part is mainly affected by light resource stress, while the underground part is mainly affected by soil heterogeneous nutrition stress. The aboveground part mainly responds to the aboveground heterogeneous light environment through the number and length of branches, the size and number of leaves; the underground part mainly responds to the underground heterogeneous patch environment plastically through the number and length of root branches. The ability of plants to respond to heterogeneous patches directly determines the growth, development and biomass of the plants.

[0003] At present, there is a lack of devices for measuring the ability of the above-ground and underground parts of plants to respond to heterogeneous patch environments. For example, a plant root growth and development observation device disclosed in patent application 201620222364.9, the roots of the seeds after germination pass through the seed cup and extend into the corresponding root culture tube to observe the production and development of the plant roots. This technical solution has the following shortcomings: First, since the root culture tube corresponds to the plant one-to-one, the same plant can only simulate one root culture environment, and it is not possible to test the growth of the same plant in different environments at the same time, resulting in limited research on plant growth and unable to better grasp the response of plants to underground heterogeneous patches; second, the factors affecting plant growth are relatively complex. In addition to the underground environment, light intensity, light time, etc. all affect plant growth. Obviously, the plant growth and development observation device of the prior art is insufficient in the selection of diversity of factors affecting plant production. Summary of the invention

[0004] The present invention aims to solve the technical problem that the plant growth and development observation device in the prior art has a relatively single research on the factors affecting plant growth and cannot measure the heterogeneous environmental response ability of the same plant by multiple factors.

[0005] The present invention solves the above-mentioned technical problems by the following technical means: a device for measuring the environmental response ability of plant heterogeneous patches, comprising a containing device; the containing device comprises, from top to bottom, a test area for the heterogeneous response ability of the above-ground part of the plant, a plant fixation and preliminary growth area, and a test area for the heterogeneous response ability of the underground part of the plant; the above-ground part heterogeneous response ability test area of ​​the plant is used to provide a growth environment for the part of the plant that is exposed upward from the plant fixation and preliminary growth area; the plant fixation and preliminary growth area is used for sowing; after the seeds take root, their roots can be removed from the plant The bottom of the fixation and preliminary growth zone extends downward into the plant underground part heterogeneity response ability test zone, and the plant underground part heterogeneity response ability test zone is used to simulate the plant roots in different stresses or different nutritional environments; a light shield is arranged in the plant aboveground part heterogeneity response ability test zone, and the bottom of the light shield is open, and the part of the plant exposed from the plant fixation and preliminary growth zone can be covered in the light shield; a plurality of openings are opened on the light shield, and each opening is connected to a cover sheet, and the opening can be covered by closing the cover sheet.

[0006] The present invention sows seeds in a plant fixing and preliminary growth zone, and after the roots of the seeds germinate and grow and extend into a test zone for heterogeneous response capability of an underground part of the plant, a glass container containing a proportioned nutrient solution is placed in the test zone for heterogeneous response capability of an underground part of the plant, and all the glass containers are divided into multiple groups to ensure that the nutrient solutions in different glass containers are different; the branches of the plant roots are extended into the corresponding glass containers; and the roots of the plant include primary branches (main roots), secondary branches, tertiary branches, and n-level branches in sequence according to the number of bifurcations.

[0007] Preferably, different branches extend into different glass containers; or multiple branches extend into one glass container. After the seeds germinate and emerge upward from the plant fixation and preliminary growth area, cover the part of the germinated plant that is exposed to the plant fixation and preliminary growth area with a light shield; open the openings of the light shield at a set position and number, set the light intensity and light cycle of the test area for the heterogeneous response ability of the aboveground part of the plant, and obtain the plants of the treatment group after the set time; measure the plants of the treatment group and the plants of the control group, and measure the branch configuration index and leaf index of the part of the plant that is exposed above the plant fixation and preliminary growth area, and the branch configuration index of the part of the plant that extends downward to the lower part of the plant fixation and preliminary growth area; calculate the response ability of the plants of the treatment group to heterogeneous patches.

[0008] Since the plant underground part heterogeneity response ability test area in the present invention can simulate the branches of the plant roots being in different stresses or different nutritional environments, that is, multiple glass containers are placed in the plant underground part heterogeneity response ability test area, and different nutrient solutions are placed in different groups of glass containers to simulate different branches of the plant roots being in different nutritional environments, the device of the present invention can test the growth of the branches of the roots of the same plant in different environments, thereby better understanding the plant's response ability to underground heterogeneous patches. Since the present invention is provided with a light shield in the plant aboveground part heterogeneity response ability test area, and multiple openings are opened on the light shield, the intensity of light can be adjusted and controlled by opening different numbers and positions of cover sheets, thereby achieving the technical effect of measuring the plant's heterogeneous environmental response ability through multiple factor variables.

[0009] Preferably, the accommodating device is a box structure; ventilation holes are provided at the top opening of the box structure or at multiple locations around the box structure;

[0010] The box structure includes a box body with an upward opening and a box cover with a downward opening. The box body has a circle of mortise holes on the edge of its open end, and the box cover has a circle of tenons corresponding to the mortise holes on the edge of its open end. The box cover is closed on the box body, so that the tenons and the mortise holes form a mortise and tenon fit.

[0011] Preferably, the plant fixation and preliminary growth area includes a mesh bag and a growth soil layer; the edge of the mesh bag is connected to the periphery of the middle part of the internal cavity of the box structure, and the growth soil layer is accumulated on the mesh bag; the space in the internal cavity of the box structure between the top of the box structure and the plant fixation and preliminary growth area forms the space of the plant aboveground part heterogeneous response ability test area, and the space between the plant fixation and preliminary growth area and the bottom of the box structure forms the space of the plant underground part heterogeneous response ability test area.

[0012] Preferably, a drip irrigation device is installed in the test area for the heterogeneous response ability of the aboveground parts of plants, and the water drops dripping from the drip irrigation device can fall into the plant fixing and initial growth area.

[0013] Preferably, the drip irrigator includes a water tank, a drainage pipe, a nozzle, and a connecting shaft; the connecting shaft is suspended on the test area for the heterogeneous response ability of the aboveground part of the plant, and the multiple nozzles are distributed at intervals and connected to the connecting shaft; the water tank includes a water tank body, a movable part, a gear, and a diversion channel, and a strip water outlet is opened on the side of the water tank body, and the movable part and the strip water outlet are slidably matched in the vertical direction; one side of the movable part is in a serrated structure and meshes with the gear; the strip water outlet and the drainage pipe are connected through the diversion channel.

[0014] Preferably, a plurality of glass containers are placed in the test area for heterogeneous response ability of the underground part of the plant; and the branches of the plant roots can extend into the glass containers.

[0015] Preferably, the glass container has a Y-shaped tube structure, including a main tube, a first branch tube, and a second branch tube; the first branch tube and the second branch tube are respectively connected to the two sides of the top of the main tube; wherein the open end of the second branch tube is equipped with a plug; the branches of the plant roots can extend into the first branch tube through the open end of the first branch tube.

[0016] Preferably, a chassis is provided in the plant underground part heterogeneity response ability test area, and the chassis can be lifted and lowered in the vertical direction; the bottom of the glass container is mounted on the chassis.

[0017] The present invention also discloses a method for measuring the environmental response ability of plant heterogeneity using the above-mentioned device for measuring the environmental response ability of plant heterogeneity patches, comprising the following steps:

[0018] Step 1: sow the seeds in the plant fixing and initial growth area;

[0019] Step 2: After the roots of the seeds germinate and grow and extend into the test area for heterogeneous response ability of the underground part of the plant, place a glass container containing a proportioned nutrient solution in the test area for heterogeneous response ability of the underground part of the plant; extend the branches of the plant roots into the corresponding glass containers;

[0020] Step 3: After the seeds germinate and emerge upward from the plant fixing and initial growth area, cover the part of the germinated plant that is exposed from the plant fixing and initial growth area with a light shield; open the openings of the light shield at a set position and number, set the light intensity and light cycle, and obtain the plants of the treatment group after the set time;

[0021] Step 4, measuring the plants of the measurement treatment group obtained in step 3 and the plants of the control group, measuring the branch configuration index and leaf index of the part of the plants exposed above the plant fixing and preliminary growth area, and the branch configuration index of the part of the plants extending downward to the part below the plant fixing and preliminary growth area;

[0022] Step 5: Calculate and measure the response ability of plants in the treatment group to heterogeneous patches.

[0023] Preferably, the index model of the response of the part of the plant exposed above the plant fixation and initial growth zone and the part of the plant extending below the plant fixation and initial growth zone to heterogeneous patches is:

[0024]

[0025] Ds represents the weight coefficient of the part of the plant above the plant fixation and initial growth area, D x represents the weight coefficient of the part of the plant above the plant fixation and initial growth area, D s and D x The sum of D and D is equal to 1, Ds < Dx; K1 and K2 represent the branch configuration and the above-ground weight coefficient of the leaf index of the part of the plant above the plant fixation and initial growth area, the sum of K1 and K2 is equal to 1, and K1 < K2;

[0026] n represents the number of bifurcations of the branches of the plant, n = 1 represents the first level, n = 2 represents the second level, and so on; J n represents the product of the relative branch length and the relative number of branches of the nth - level branches different from those of the part of the plant above the plant fixation and initial growth area. If the number is less than 5, the average value is taken; if it exceeds 5, 5 branches are randomly selected and the average value is taken; I n represents the branch weight coefficient of the nth - level branches of the part of the plant above the plant fixation and initial growth area. The larger the level, the greater the weight, that is, the weight of the third - level branches > the weight of the second - level branches > the weight of the first - level branches. The sum of the weight coefficients is 1; m represents the number of levels of the branches extending above the plant fixation and initial growth area of the plant;

[0027] The relative branch length is equal to the average branch length measured for the plants in the treatment group / the average branch length of the control group;

[0028] The relative number of branches is equal to the average number of branches measured for the plants in the treatment group / the average number of branches of the control group;

[0029] Y represents the relative average leaf area size of the part of the plant above the plant fixation and initial growth area; if the number is less than 10, the average value is directly taken; if it exceeds 10, 10 leaves are randomly selected and the average value is taken; M represents the relative number of leaves of the part of the plant above the plant fixation and initial growth area;

[0030] The average relative leaf area is equal to the average leaf area measured for the plants in the treatment group / the average leaf area of the control group; the relative number of leaves is equal to the number of leaves measured for the plants in the treatment group / the number of leaves of the control group;

[0031] r represents the number of bifurcations of the roots of the plant, r = 1 represents the first level, r = 2 represents the second level, and so on;

[0032] G r represents the product of the relative branch length and the relative number of branches of the rth - level lateral roots of the part of the plant extending below the plant fixation and initial growth area. If the number is less than 5, the average value is directly taken; if it exceeds 5, 5 branches are randomly selected and the average value is taken. Q rRepresents the branch weight coefficient of the rth grade lateral root extending below the plant's fixed and initial growth zone. The larger the grade, the greater the weight, that is, the third-grade branch weight> the second-grade branch weight> the first-grade branch weight; the sum of the weight coefficients is 1; t represents the number of grades of roots extending below the plant's fixed and initial growth zone;

[0033] The relative branch length is equal to the average branch length measured in the plants of the treatment group / the average branch length of the control group;

[0034] The relative number of branches is equal to the average number of branches measured in the plants of the treatment group / the average number of branches in the control group.

[0035] The present invention has the following advantages: since the plant underground part heterogeneity response ability test area in the present invention can simulate the branches of the plant roots being in different stresses or different nutritional environments, that is, a plurality of glass containers are placed in the plant underground part heterogeneity response ability test area, and different nutrient solutions are placed in different groups of glass containers to simulate different branches of the plant roots being in different nutritional environments, the device of the present invention can test the growth conditions of the branches of the roots of the same plant in different environments, thereby better understanding the plant's response ability to underground heterogeneous patches; since the present invention is provided with a light shield in the plant aboveground part heterogeneity response ability test area, and a plurality of openings are opened on the light shield, the intensity of light can be adjusted and controlled by opening different numbers and positions of cover sheets, thereby achieving the technical effect of measuring the plant's heterogeneous environmental response ability through multiple factor variables. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 Schematic diagram of the structure of the device for measuring the environmental response ability of plant heterogeneous patches in an embodiment of the present invention.

[0037] Figure 2 It is a schematic structural diagram of the light shielding cover in a box structure state according to an embodiment of the present invention.

[0038] Figure 3 FIG. 1 is a schematic diagram of the structure of a light shield in an embodiment of the present invention.

[0039] Figure 4 It is a schematic diagram of the structure of the box body in the open door state according to an embodiment of the present invention.

[0040] Figure 5 It is a schematic structural diagram of the box structure in a split state according to an embodiment of the present invention.

[0041] Figure 6 It is a schematic diagram of the structure of a device for measuring the environmental response ability of plant heterogeneous patches with a water tank in an embodiment of the present invention.

[0042] Figure 7It is a schematic diagram of the structure with a water tank in a top view according to an embodiment of the present invention.

[0043] Figure 8 Schematic diagram of the structure of the water tank in the embodiment of the present invention.

[0044] Fig. 9 Schematic diagram of the structure of the drip irrigation device in the embodiment of the present invention.

[0045] Fig.10 Schematic diagram of the structure of the root puller in the embodiment of the present invention.

[0046] Fig.11 It is a schematic diagram of the structure in a state where 1 / 3 of the openings on the top surface of the light shield are opened in an embodiment of the present invention.

[0047] Fig.12 It is a schematic diagram of the structure in a state where 1 / 3 of the openings on the left side of the light shield are opened in an embodiment of the present invention.

[0048] Fig.13 It is a schematic diagram of the structure in a state where 1 / 3 of the openings on the right side of the light shield are opened in an embodiment of the present invention.

[0049] Fig.14 It is a schematic diagram of the structure in a state where 1 / 3 of the openings on the front side of the light shield are opened in an embodiment of the present invention.

[0050] Fig.15 It is a schematic diagram of the structure in a state where 1 / 3 of the openings on the rear side of the light shield are opened in an embodiment of the present invention.

[0051] Fig.16 Schematic diagram of the structure of a plant in an embodiment of the present invention. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0054] It should be noted that, in this article, if there are first and second, etc., relational terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0055] Example 1

[0056] like Figure 1 As shown, this embodiment discloses a device for measuring the environmental response ability of plant heterogeneous patches, including a containing device, which includes, from top to bottom, a test area 11 for heterogeneous response ability of the above-ground part of the plant, a plant fixation and preliminary growth area 12, and a test area 13 for heterogeneous response ability of the underground part of the plant. The test area 11 for heterogeneous response ability of the above-ground part of the plant is used to provide a growth environment for the part of the plant that is exposed upward from the plant fixation and preliminary growth area 12. The plant fixation and preliminary growth area 12 is used for sowing. After the seeds take root, their roots can extend from the bottom of the plant fixation and preliminary growth area 12 into the test area 13 for heterogeneous response ability of the underground part of the plant. The test area 13 for heterogeneous response ability of the underground part of the plant is used to simulate the branches of the roots of the plant in different stresses or different nutritional environments.

[0057] like Figure 1 , 2 As shown, in this embodiment, a plurality of glass containers are placed in the plant underground part heterogeneity response ability test area 13, and different nutrient solutions are placed in different groups of glass containers to simulate different nutrient environments of different branches of plant roots.

[0058] like Figure 2 As described above, a shade 111 is provided in the plant aboveground part heterogeneity response ability test area 11, the bottom of the shade 111 is open, and the part of the plant exposed from the plant fixing and initial growth area 12 can be covered in the shade 111. Figure 3 , 11-15 The sunshade 111 is provided with a plurality of openings 1111, each of which is connected to a cover sheet 1112, and the openings 1111 can be covered by closing the cover sheet 1112. The present invention can cut a plurality of arc-shaped or square openings 1111 on the sunshade 111, and the area connected to the sunshade 111 body after cutting forms the cover sheet 1112. Other prior art methods of matching the cover sheet 1112 with the opening 1111, such as bonding, should also be within the protection scope of the present invention.

[0059] The present invention sows seeds in a plant fixing and preliminary growth area 12, and after the roots of the seeds germinate and grow and extend into a plant underground heterogeneity response ability test area 13, a glass container containing a proportioned nutrient solution is placed in the plant underground heterogeneity response ability test area 13, and all glass containers are divided into multiple groups to ensure that the nutrient solutions in different glass containers are different; branches of the plant roots are extended into the corresponding glass containers; Fig.16 As shown, the root of the plant includes a primary branch 21 (main root), a secondary branch 22, a tertiary branch 23, and n-level branches in sequence according to the number of bifurcations. Preferably, different branches extend into different glass containers; or multiple branches extend into one glass container. After the seeds germinate and emerge upward from the plant fixation and preliminary growth area 12, cover the part of the germinated plant that is exposed from the plant fixation and preliminary growth area 12 with a light shield 111; open the openings 1111 of the light shield 111 at a set position and number, set the light intensity and light cycle of the test area for the heterogeneous response ability of the aboveground part of the plant (if it is natural light, the light intensity is obtained only by the position and number of the openings 1111), and after the set time, obtain the plants of the treatment group; measure the plants of the treatment group and the plants of the control group, and measure the branch configuration index and leaf index of the part of the plant that is exposed above the plant fixation and preliminary growth area 12, and the branch configuration index of the part of the plant that extends downward to the lower part of the plant fixation and preliminary growth area 12; calculate the response ability of the plants of the treatment group to heterogeneous patches.

[0060] Since the plant underground part heterogeneity response ability test area 13 in the present invention can simulate the branches of the plant roots being in different stresses or different nutritional environments, that is, a plurality of glass containers are placed in the plant underground part heterogeneity response ability test area 13, and different nutrient solutions are placed in different groups of glass containers to simulate different branches of the plant roots being in different nutritional environments, the device of the present invention can test the growth of the branches of the roots of the same plant in different environments, thereby better understanding the plant's response ability to underground heterogeneous patches. Since the present invention is provided with a shade 111 in the plant aboveground part heterogeneity response ability test area 11, and a plurality of openings 1111 are opened on the shade 111, the light intensity can be adjusted and controlled by opening different numbers and positions of cover sheets 1112, thereby achieving the technical effect of measuring the plant's heterogeneous environmental response ability through multiple factor variables.

[0061] like Figure 2 , 5 As shown, in some embodiments, the containing device is a transparent glass box structure. A light shield 111 is provided at the upper part of the internal cavity of the box structure, and the bottom of the light shield 111 is open, and the part of the plant exposed in the plant fixing and initial growth area 12 can be covered in the light shield 111. Specifically, the present invention can install a bracket 112 at the upper part of the internal cavity of the box structure, and the bracket 112 is threadedly connected or bonded to the internal cavity of the box structure by bolts. The light shield 111 covers the bracket 112.

[0062] like Figure 2 As shown, in some embodiments, a beam 119 is suspended in the plant aboveground part heterogeneity response ability test area 11, and a lamp tube 114 is provided on the beam 119 and the inner wall of the plant aboveground part heterogeneity response ability test area 11, and the lamp tube 114 is electrically connected to an external power supply.

[0063] like Figure 2 As shown, the plant fixing and initial growth area 12 includes a mesh bag 121 and a growth soil layer 122. The edge of the mesh bag 121 is connected to the periphery of the internal cavity of the box structure, specifically by bonding, or a rope is sewn on the edge of the mesh bag 121, and a connecting rod is bonded or threaded on the side wall of the internal cavity of the box structure, and the rope is tied to the connecting rod. The growth soil layer 122 is accumulated on the mesh bag 121.

[0064] The space in the internal cavity of the box structure between the top of the box structure and the plant fixing and preliminary growth zone 12 forms the space of the plant aboveground part heterogeneity response ability test zone 11, and the space between the plant fixing and preliminary growth zone 12 and the bottom of the box structure forms the space of the plant underground part heterogeneity response ability test zone 13.

[0065] By using the device of the present invention, the containing device includes, from top to bottom, a test area 11 for heterogeneous response ability of the aboveground part of the plant, a plant fixation and preliminary growth area 12, and a test area 13 for heterogeneous response ability of the underground part of the plant. By using this specific spatial structure of the present invention, the plant fixation and preliminary growth area 12 can be used to sow seeds, and the uppermost plant aboveground heterogeneous response ability test area 11 can be used to simulate the natural growth environment, and then according to the growth characteristics of the plant, the branches and leaves and the roots after the germination of the seeds extend into the test area 11 for heterogeneous response ability of the aboveground part of the plant and the test area 13 for heterogeneous response ability of the underground part of the plant, respectively, and the plant aboveground heterogeneous response ability test area 11 is used to test the branch configuration index and leaf index of the part (branches and leaves) of the plant that is exposed upward from the plant fixation and preliminary growth area 12, and the branch configuration index of the part (root) of the plant that extends below the plant fixation and preliminary growth area 12, and then the model of the present invention is used to test the plant's ability to respond to heterogeneous patches, thereby realizing the test of the ability of the aboveground and underground parts of the plant to respond to the heterogeneous patch environment.

[0066] Example 2

[0067] like Figure 6-9 As shown, the difference between this embodiment and the above embodiment is that: the present invention also includes a dripper, which includes a water tank 1131, a drainage pipe 1132, a nozzle 1133, and a connecting shaft 1134; the water tank 1131 can be welded or bonded or threadedly connected to the outer side of the box structure, such as Figure 2 , 9 As shown, the connecting shaft 1134 is suspended in the above-ground heterogeneity response ability test area 11 of the plant, and the plurality of the nozzles 1133 are spaced and rotatably connected to the connecting shaft 1134; the water tank 1131 includes a water tank body 11311, a movable part 11312, a gear 11313, and a diversion channel 11314; a strip water outlet is provided on the side of the water tank body 11311, and the movable part 11312 is slidably matched with the strip water outlet in the vertical direction; a sealing strip is bonded or embedded around the strip water outlet, and the movable part 11312 is passed through The sealing strip is in sealing contact with the strip water outlet; one side of the movable part 11312 is in a sawtooth structure and meshes with the gear 11313, and the other side of the movable part 11312 is in sliding contact with the guide block 11316, which is bonded or threaded to the inner cavity of the water tank body 11311; the strip water outlet is connected to the drainage pipe 1132 through the diversion channel 11314; the higher end of the diversion channel 11314 is connected to the strip water outlet, and the lower end of the diversion channel 11314 is connected to the drainage pipe 1132. The drainage pipe 1132 has an inclined section, which gradually changes from the higher end connected to the diversion channel 11314 to the lower end connected to the nozzle 1133.

[0068] like Figure 7 As shown, the present invention further includes a rotating shaft 1135, one end of which extends into the water tank body 11311 and is connected to the gear 11313. Preferably, the end of one end of the rotating shaft 1135 is rotatably connected to the water tank body 11311 through a bearing, and the other end of the rotating shaft 1135 is placed outside the water tank body 11311 and the end is connected to a handle 1136. A sealing ring is sleeved between the water tank body 11311 and the rotating shaft 1135.

[0069] The present invention firstly rotates the handle 1136 forward to drive the rotating shaft 1135 to rotate forward, drives the gear 11313 to rotate forward, drives the movable part 11312 meshed with the gear 11313 to move upward, until the movable part 11312 completely seals the strip water outlet; and pours water into the water tank body 11311 from the top until the water submerges the movable part 11312. When in use, the present invention rotates the handle 1136 backward to drive the rotating shaft 1135 to rotate backward, drives the gear 11313 to rotate backward, drives the movable part 11312 meshed with the gear 11313 to move downward, the upper part of the strip water outlet opens, and the water in the water tank body 11311 flows out from the opening until the water level in the water tank body 11311 is lower than the top surface of the movable part 11312. After passing through the diversion channel 11314 and the drainage pipe 1132 in sequence, the water is sprayed from the nozzle 1133 onto the plant fixing and initial growth area 12. The present invention can increase the opening area of ​​the strip water outlet by further rotating the handle 1136 in the opposite direction, so that more water can be sprayed from the nozzle 1133.

[0070] With the drip irrigation structure of the present invention, by rotating the external handle 1136 , each nozzle 1133 can be sprayed in real time, and the flow rate of the nozzle 1133 can be controlled by adjusting the number of rotations of the handle 1136 .

[0071] Furthermore, in some embodiments, a flow valve is provided on the drainage tube 1132 to adjust the amount of fluid sprayed per unit time by the nozzle 1133 .

[0072] Further, in some embodiments, the nozzle 1133 includes a nozzle body 11331 and a rotating member 11332, wherein the nozzle body 11331 is connected to the rotating member 11332, and specifically can be integrally formed, wherein the rotating member 11332 is sleeved on the connecting shaft 1134, and a damper is sleeved between the rotating member 11332 and the connecting shaft 1134. The nozzle body 11331 is connected to the drainage pipe 1132.

[0073] The present invention realizes the rotational cooperation between the nozzle 1133 and the connecting shaft 1134 by sleeve-arranging the rotating member 11332 on the connecting shaft 1134, and can adjust the water spraying angle of the nozzle 1133 in real time. Since a damper is sleeved between the rotating member 11332 and the connecting shaft 1134, the rotation resistance of the nozzle 1133 can be increased, thereby ensuring the relative stability of the position of the nozzle 1133 after the water spraying angle is adjusted.

[0074] like Figure 5 As shown, in some embodiments, a plurality of partitions 123 are provided in the growth soil layer 122. The partitions 123 are crisscrossed to divide the growth soil layer 122 into a plurality of sub-growth soil layers.

[0075] The present invention differentiates the growth soil layer 122 into multiple sub-growth soil layers through the partition 123, and can pile up different growth soil layers 122 in different sub-growth soil layers, thereby realizing the simultaneous testing of the response ability of the above-ground and underground parts of plants in the growth soil environment to heterogeneous patches.

[0076] In some embodiments, the plant fixing and preliminary growth area 12 further includes a temperature sensor and a humidity sensor, which are installed in the growth soil layer 122 .

[0077] In some embodiments, the mesh bag 121 has a grid structure to increase soil permeability and facilitate the root system of the plant to grow downward through the growth soil layer 122 .

[0078] Example 3

[0079] like Figure 2 As shown, the difference between this embodiment and the above embodiment is that the glass container is a Y-shaped tube structure, including a main tube 1311, a first branch tube 1312, and a second branch tube 1313. The first branch tube 1312 and the second branch tube 1313 are respectively connected to the two sides of the top of the main tube 1311. The open end of the second branch tube 1313 is equipped with a plug. The branches of the roots of the plants can extend into the first branch tube 1312 through the open end of the first branch tube 1312.

[0080] like Figure 4 As shown, a chassis 132 is provided at the bottom of the internal cavity of the box structure, and the chassis 132 can move up and down in the vertical direction. The bottom of the main body 1311 is installed on the chassis 132. A groove is provided on the top of the chassis 132, and the bottom of the main body 1311 is installed in the corresponding groove.

[0081] like Figure 4 , 5As shown, specifically, a vertical rod 133 is fixed to the bottom of the internal cavity of the box structure, a hole communicating with each other up and down is opened at the center of the chassis 132, and the chassis 132 is mounted on the vertical rod 133 through the hole, and a plurality of threaded through holes and threaded holes guiding up and down are respectively opened on the chassis 132 and the inner bottom of the internal cavity of the box structure, and the screw rod 134 can be inserted into the corresponding threaded through holes and threaded holes to lock the height of the chassis 132.

[0082] The present invention places the bottom of the main body 1311 of the glass container in the corresponding groove of the bottom plate 132 to stabilize the position of the glass container, and extends the branches of the roots of the plant into the first branch body 1312 of the corresponding glass container, and the branches can also extend into the main body 1311. The open end of the second branch body 1313 is equipped with a plug and taken out, and the corresponding nutrient solution is poured into the open end of the second branch body 1313, and then the plug is plugged, so that the branches of the roots of the plant are immersed in the corresponding nutrient solution.

[0083] The present invention realizes the movement of the chassis 132 by rotating the screw rod 134 until the screw rod 134 exposes the threaded hole, and then adjusts the height of the chassis 132 by raising and lowering the chassis 132 to meet the needs of roots of different lengths.

[0084] like Figure 2 As shown, in some embodiments, the opening end of the first branch pipe body 1312 is trumpet-shaped. The trumpet-shaped opening structure facilitates the extension of the branches of the roots of the plants.

[0085] Example 4

[0086] like Figure 4 , 5 As shown, the difference between this embodiment and the above-mentioned embodiment is that a discharge port is provided on the side of the box structure, and a door 14 for opening and closing the discharge port is installed on the discharge port. Specifically, one end of the door 14 is pivotally connected to one end of the discharge port, and the other end of the door 14 can be closed at the other end of the discharge port. As a specific closing method, corresponding door threaded holes and discharge port threaded holes can be provided at the other end of the door 14 and the other end of the discharge port, and the door 14 can be closed by passing bolts through the door threaded holes and the discharge port threaded holes. Alternatively, magnetic blocks are respectively fixed at the other end of the door 14 and the other end of the discharge port, and the door 14 is closed by suction. Other closing methods of the prior art should also be within the protection scope of the present invention.

[0087] The present invention can install the light shield 111, various glass containers and the lamp tube 114, the drip irrigation device, the mesh bag 121, the growing soil, etc. by opening the door 14.

[0088] The present invention provides an opening at the top of the box structure or multiple ventilation holes around the box structure to improve the circulation of air between the internal environment of the box structure and the external environment.

[0089] In some embodiments, the box structure of the present invention can also be a split structure, including a box body 16 with an opening facing upward and a box cover 17 with an opening facing downward. The box body 16 has a circle of mortise holes on the edge of its open end, and the box cover 17 has a circle of tenons corresponding to the mortise holes on the edge of its open end. The box cover 17 is covered on the box body 16, so that the tenons and the mortise holes form a mortise and tenon fit.

[0090] Example 5

[0091] like Fig.10 As shown, the difference between this embodiment and the above embodiment is that the present invention also includes a root puller 18, which is mainly used to pull the lateral roots of underground roots into the glass container while avoiding damaging the underground roots. The main shape is a round rod structure, and the material is a fiber soft material. The top is a mesh plate 181 to prevent the nutrient solution from sticking to the root puller 18. The rod part is a telescopic rod to meet the needs of different lengths.

[0092] Example 6

[0093] This embodiment also discloses a method for measuring the plant's ability to respond to a heterogeneous patch environment using the above-mentioned device for measuring the plant's ability to respond to a heterogeneous patch environment, comprising the following steps:

[0094] Step 1, sowing seeds in the plant fixing and initial growth area 12;

[0095] Step 2: Lighting and irrigation (drip irrigation). After the roots of the seeds germinate and grow and extend into the plant underground heterogeneity response ability test area 13, glass containers with different nutrient solutions are placed in the plant underground heterogeneity response ability test area 13; each or a group of glass containers simulates a patch microenvironment; and the branches of the roots are extended into the corresponding glass containers. There are one or more branches in one glass container.

[0096] After the seeds germinate and emerge upward from the plant fixing and initial growth area 12, the irrigation (drip irrigation) is stopped. A light shield 111 is covered on the part of the germinated plant that is exposed from the plant fixing and initial growth area 12.

[0097] Open the openings 1111 of the light shields 111 at set positions and numbers to adjust the light intensity and light cycle of the control area;

[0098] Step 3. After setting the time, go to the plants in the treatment group;

[0099] Step 4: measuring the plants in the treatment group and the plants in the control group, measuring the branch configuration index and leaf index of the part of the plants exposed above the plant fixing and preliminary growth area 12, and the branch configuration index of the part of the plants extending downward to the part below the plant fixing and preliminary growth area 12;

[0100] Step 5. Calculate the response ability of the plants in the treatment group to heterogeneous patches.

[0101] The response index model for the part of the plant above the plant fixing and initial growth area 12 and the part of the plant extending below the plant fixing and initial growth area 12 is as follows:

[0102]

[0103] D s represents the weight coefficient of the part of the plant above the plant fixing and initial growth area 12, D x represents the weight coefficient of the part of the plant above the plant fixing and initial growth area 12, D s and D x The sum of D and D is equal to 1, Ds < Dx; K1 and K2 represent the above-ground weight coefficients of the branch configuration and leaf index of the part of the plant above the plant fixing and initial growth area 12, and the sum of K1 and K2 is equal to 1, K1 < K2;

[0104] n represents the grading number of the branches of the plant. n = 1 represents the first level, n = 2 represents the second level, and so on; J n represents the product of the relative branch length and the relative number of branches of the nth graded branch different from the part of the plant above the plant fixing and initial growth area 12. If the number is less than 5, take the average value; if it exceeds 5, randomly select 5 branches to take the average value; I n represents the branch weight coefficient of the nth graded branch of the part of the plant above the plant fixing and initial growth area 12. The larger the grading, the greater the weight, that is, the weight of the third-level branch > the weight of the second-level branch > the weight of the first-level branch. The sum of the weight coefficients is 1; m represents the total grading number of the branches of the part of the plant extending above the plant fixing and initial growth area 12;

[0105] The relative branch length is equal to the average branch length measured for the plants in the treatment group / the average branch length of the control group;

[0106] The relative number of branches is equal to the average number of branches measured for the plants in the treatment group / the average number of branches of the control group;

[0107] Y represents the relative average leaf area size of the part of the plant above the plant fixing and initial growth area 12. If the number is less than 10, directly take the average value; if it exceeds 10, randomly select 10 leaves to take the average value; M represents the relative number of leaves of the part of the plant above the plant fixing and initial growth area 12;

[0108] The average relative leaf area is equal to the average leaf area measured in the plants of the treatment group / the average leaf area of ​​the control group; the relative number of leaves is equal to the number of leaves measured in the plants of the treatment group / the number of leaves in the control group;

[0109] r represents the grade number of the plant's roots, r = 1 for grade one, r = 2 for grade two, and so on;

[0110] G r It represents the product of the relative branch length and relative branch number of the r-level lateral roots extending below the plant's fixed and initial growth zone 12. If the number is less than 5, the average value is taken directly; if it is more than 5, 5 branches are randomly selected to take the average value. r Represents the branch weight coefficient of the r-th grade lateral root of the plant extending below the plant fixing and preliminary growth zone 12. The larger the grade, the greater the weight, that is, the third-level branch weight> the second-level branch weight> the first-level branch weight; the sum of the weight coefficients is 1; t represents the total number of grades of the root system extending below the plant fixing and preliminary growth zone 12;

[0111] The relative branch length is equal to the average branch length measured in the plants of the treatment group / the average branch length of the control group;

[0112] The relative number of branches is equal to the average number of branches measured in the plants of the treatment group / the average number of branches in the control group.

[0113] The light shield 111 of the present invention is provided with a plurality of openable openings 1111 arranged side by side. According to the research needs, by opening the openings 1111 at different positions, direct light (opening the opening 1111 directly above) and oblique light at different angles (opening the openings 1111 on the side) are simulated respectively; according to the difference in the number of openings 1111, the number of light tubes 114 is lit to simulate the influence of different light intensities; combined with the different on and off times of the light tubes 114, the influence of different photoperiods on plants is simulated. After a set period of time, the above-ground branch (branch) index (first-level branch 31 length (main branch length), the number of first-level branches (main branch length number), the length of the second-level branch 32, the number of the second-level branches, the length of the third-level branch 33, the number of the third-level branches, ..., the number of the n-level branches) and the leaf index (leaf area and number) are measured to judge the response ability of the above-ground part of the plant to the heterogeneous light environment.

[0114] In some embodiments, the growth soil layer 122 includes vermiculite, soil and forest humus, and the mass ratio of the vermiculite, soil and forest humus is 1:3:2.

[0115] Example 7

[0116] This embodiment discloses a method for determining the environmental response capability of heterogeneous patches of Pleistocene chinensis.

[0117] Step 1: Divide the seeds of the Chinese lantern tree into a control group and a treatment group; sow them in the plant fixation and initial growth area 12. The growth soil mainly consists of vermiculite, soil and forest humus soil in a ratio of 1:3:2.

[0118] Step 2: The control group and the treatment group were irrigated (drip irrigation) once every 2 days, with a watering volume of 50 ml; the illumination was full illumination, and the beam 119 and the four inner walls of the plant aboveground part heterogeneity response ability test area 11 were each provided with 6 lamps, and the light intensity of each lamp was 80 lux. The photoperiod was set to 12 (light) h: 12 h (no light);

[0119] Step 3: After the roots of the seeds germinate and grow and extend into the plant underground part heterogeneity response ability test area 13, place the glass container with the nutrient solution in the plant underground part heterogeneity response ability test area 13. Each glass container simulates a patch microenvironment. Extend the branches of the roots into the glass container. There are one or more branches in one glass container.

[0120] The nutrient solution in which all roots of the plants in the control group were placed had a ratio of N:P:K of 1:1:1 and a pH of 7. The heterogeneity of the nutrient solution in the treatment group took into account the heterogeneity of the composition of the nutrient solution and the heterogeneity of the location of the nutrient solution. The details are as follows:

[0121] The proportions of heterogeneous nutrient solutions are:

[0122] Table 1

[0123] Serial number Nutrient solution N:P:K ratio pH value of nutrient solution Heterogeneity of nutrient solution simulation Test tube 1 1：2：2 7 2 secondary root branches (fully immersed in nutrient solution) Test Tube 2 2：2：1 6.5 1 tertiary root branch (fully immersed in nutrient solution) Test Tube 3 1：2：3 6.5 1 secondary root branch (fully immersed in nutrient solution) Test tube 4 3：2：1 7.5 The bottom part of a primary root branch (completely immersed in nutrient solution) Test Tube 5 2：1：3 7.5 1 tertiary root branch (partial tertiary root system immersed in nutrient solution)

[0124] Step 4: After the seeds germinate and emerge upward from the plant fixing and initial growth area 12, that is, after the first new leaf grows out of the branch, stop dripping. Cover the part of the plant that is exposed from the plant fixing and initial growth area 12 after germination with a light shield 111.

[0125] Open the openings 1111 of the light shielding hood 111 of the set position and quantity, and set the light intensity and light cycle.

[0126] Control the heterogeneity of light (light intensity, light position and light cycle) through the light shield. The specific steps are as follows:

[0127] (1) Turn on all the light tubes 114 outside the light shield.

[0128] (2) The photoperiod of the control group was 12 h (light): 12 h (no light), while the photoperiod of the treatment group was 8 h (light): 16 h (no light).

[0129] (3) All openings 1111 on the light shield of the control group were opened to allow light to enter. Figure 11-15As shown, the openings 1111 on the light shield of the treatment group were treated with heterogeneity to simulate the heterogeneity of light intensity and light position. In this experiment, the opening ratio of the opening 1111 on the top of the light shield was set to 1 / 3 (the light intensity on the top was only 1 / 3 of that in the control), and the opening ratios of the openings 1111 on the surrounding areas were 1 / 3, 1 / 3, 1 / 2, and 1 / 2 (the light intensity on the surrounding areas was only 1 / 3, 1 / 3, 1 / 2, and 1 / 2 of that in the control). Figure 2 is the viewing angle. The difference in the opening position simulates the heterogeneity of the lighting position.

[0130] Step 5. The plants of the treatment group obtained in step 3 and step 4 are measured together with the plants of the control group to measure the branch configuration index and leaf index of the above-ground branches and leaves of the plants exposed above the plant fixation and preliminary growth zone 12, as well as the branch configuration index of the underground root system of the plants extending below the plant fixation and preliminary growth zone 12.

[0131] After the aboveground and underground heterogeneity treatments, the aboveground shoots were graded as 3, and the underground roots were graded as 3. Other corresponding indicators are shown in Tables 1 and 2.

[0132] Among them, the above-ground and underground indexes of the plants in the control group are shown in Table 2:

[0133] Table 2 Indexes of above-ground and underground parts of the control group

[0134]

[0135] The above-ground and underground indexes of plants after heterogeneity treatment (treatment group) are shown in Table 3:

[0136] Table 3 Indexes of aboveground and underground parts of treatment groups after heterogeneity treatment

[0137]

[0138]

[0139] The relative indices of aboveground and underground parts after heterogeneity treatment are shown in Table 4:

[0140] Table 4 Relative indices of aboveground and underground parts after heterogeneity treatment

[0141] (Corresponding index of treatment group / corresponding index of control group)

[0142]

[0143] The index model of the response of the part of the plant exposed above the plant fixation and initial growth zone 12 and the part of the plant extending below the plant fixation and initial growth zone 12 to the heterogeneous patch is:

[0144]

[0145] D s represents the weight coefficient of the above-ground part. D x represents the weight coefficient of the above-ground part, which can be set as needed. Generally, it can be set to D s is 0.4. D x is 0.6 (the sum of the weight coefficients is 1. D s <D x )). K1 and K2 represent the branch configuration of the above-ground part and the above-ground weight coefficient of the leaf index, which can be set as needed. Generally, K1 is set to 0.3 and K2 is set to 0.7 (the sum of the weight coefficients is 1, and K1 < K2). The weights of the first-level, second-level, and third-level branches of the above-ground part are 0.1, 0.3, and 0.6 respectively (the higher the level, the greater the weight, that is, the weight of the third-level branch > the weight of the second-level branch > the weight of the first-level branch; the sum of the weight coefficients is 1). The weights of the first-level, second-level, and third-level branches of the underground part are 0.1, 0.2, and 0.7 respectively (the higher the level, the greater the weight, that is, the weight of the third-level branch > the weight of the second-level branch > the weight of the first-level branch; the sum of the weight coefficients is 1).

[0146] Then the response indices of the above-ground part and the underground part to the heterogeneous patches are calculated as follows:

[0147]

[0148]

[0149] Then the response indices of the above-ground part and the underground part to the heterogeneous patches obtained are 0.05 and 0.691 respectively, and the sum of the response indices of the above-ground part and the underground part to the heterogeneous patches is 0.741.

[0150] It should be noted that in this article, if there are relationship terms such as first and second, etc., they are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

[0151] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for measuring the environmental response ability of plant heterogeneous patches, characterized in that: The invention comprises a containing device; the containing device comprises, from top to bottom, a test area for heterogeneous response ability of the aboveground part of a plant, a plant fixing and preliminary growth area, and a test area for heterogeneous response ability of the underground part of a plant; the test area for heterogeneous response ability of the aboveground part of a plant is used to provide a growth environment for the part of the plant that is exposed upward from the plant fixing and preliminary growth area; the plant fixing and preliminary growth area is used for sowing; after the seeds take root, their roots can extend downward from the bottom of the plant fixing and preliminary growth area to the test area for heterogeneous response ability of the underground part of the plant; the test area for heterogeneous response ability of the underground part of the plant is used to simulate the roots of the plant being in different stresses or different nutritional environments; A light shield is provided in the test area for the heterogeneity response ability of the above-ground part of the plant, the bottom of the light shield is open, and the part of the plant exposed from the plant fixing and preliminary growth area can be covered in the light shield; a plurality of openings are provided on the light shield, each of which is connected to a cover sheet, and the opening can be covered by closing the cover sheet; The containing device is a box structure; the top of the box structure is open or multiple air holes are arranged around the box structure; The box structure comprises a box body with an upward opening and a box cover with a downward opening. The box body has a circle of mortise holes at the edge of its opening end, and the box cover has a circle of tenons corresponding to the mortise holes at the edge of its opening end. The box cover is closed on the box body, so that the tenons and the mortise holes form a mortise and tenon fit. A drip irrigation device is installed in the plant aboveground part heterogeneity response ability test area, and water drops dripping from the drip irrigation device can fall into the plant fixation and initial growth area; A plurality of glass containers are placed in the test area for heterogeneous response ability of the underground part of the plant; the branches of the roots of the plant can extend into the glass containers; The glass container has a Y-shaped tube structure, including a main tube, a first branch tube, and a second branch tube; the first branch tube and the second branch tube are respectively connected to the two sides of the top of the main tube; wherein the open end of the second branch tube is equipped with a plug; the branches of the plant roots can extend into the first branch tube through the open end of the first branch tube.

2. The device for measuring the environmental response ability of plant heterogeneous patches according to claim 1, characterized in that: The plant fixation and preliminary growth area includes a mesh bag and a growth soil layer; the edge of the mesh bag is connected to the periphery of the middle part of the internal cavity of the box structure, and the growth soil layer is accumulated on the mesh bag; the space in the internal cavity of the box structure between the top of the box structure and the plant fixation and preliminary growth area forms the space of the plant aboveground part heterogeneity response ability test area, and the space between the plant fixation and preliminary growth area and the bottom of the box structure forms the space of the plant underground part heterogeneity response ability test area.

3. The device for measuring the environmental response ability of plant heterogeneous patches according to claim 1, characterized in that: The drip irrigation device includes a water tank, a drainage pipe, a nozzle, and a connecting shaft; the connecting shaft is suspended on the test area of ​​the heterogeneous response ability of the aboveground part of the plant, and the multiple nozzles are distributed at intervals and connected to the connecting shaft; the water tank includes a water tank body, a movable part, a gear, and a diversion channel, a strip water outlet is opened on the side of the water tank body, and the movable part and the strip water outlet are slidably matched in the vertical direction; one side of the movable part is in a serrated structure and meshes with the gear; the strip water outlet and the drainage pipe are connected through the diversion channel.

4. The device for measuring the environmental response ability of plant heterogeneous patches according to claim 1, characterized in that: A chassis is arranged in the plant underground part heterogeneity response ability test area, and the chassis can be lifted and lowered in the vertical direction; the bottom of the glass container is installed on the chassis.

5. A method for measuring the environmental response ability of plant heterogeneity using the device for measuring the environmental response ability of plant heterogeneity patches as described in any one of claims 1 to 4, characterized in that: The following steps are involved: Step 1: sow the seeds in the plant fixing and initial growth area; Step 2: After the roots of the seeds germinate and grow and extend into the test area for heterogeneous response ability of the underground part of the plant, place a glass container containing a proportioned nutrient solution in the test area for heterogeneous response ability of the underground part of the plant; Extending the branches of the plant roots into the corresponding glass containers; Step 3: After the seeds germinate and emerge upward from the plant fixing and initial growth area, cover the part of the germinated plant that is exposed from the plant fixing and initial growth area with a light shield; open the openings of the light shield at a set position and number, set the light intensity and light cycle, and obtain the plants of the treatment group after the set time; Step 4, measuring the plants of the measurement treatment group obtained in step 3 and the plants of the control group, measuring the branch configuration index and leaf index of the part of the plants exposed above the plant fixing and preliminary growth area, and the branch configuration index of the part of the plants extending downward to the part below the plant fixing and preliminary growth area; Step 5: Calculate and measure the response ability of plants in the treatment group to heterogeneous patches.

6. The method for determining the heterogeneous environmental response ability of plants according to claim 5, characterized in that: The index model for the response of the part of the plant exposed above the plant fixation and initial growth zone and the part of the plant extending below the plant fixation and initial growth zone to heterogeneous patches is: D s represents the weight coefficient of the part above the plant fixation and initial growth area exposed in the plant, D x represents the weight coefficient of the part above the plant fixation and initial growth area exposed in the plant, D s and D x The sum of Ds and Dx is equal to 1, Ds < Dx; K1 and K2 represent the branching configuration and the above-ground weight coefficient of the leaf index of the part above the plant fixation and initial growth area in the plant. The sum of K1 and K2 is equal to 1, K1 < K2; n represents the number of branchings of the plant. n =1 means level one, n =2 means level 2, and so on; J n Represents the different parts of the plant that are exposed above the plant's fixation and initial growth zone. n The product of the relative branch length and the relative branch number of the graded branches, if the number is less than 5, take the average value; if the number is more than 5, randomly select 5 branches to take the average value; I n Represents the part of the plant that is exposed above the plant's fixation and initial growth zone. n The branch weight coefficient of the graded branches, the larger the grade, the greater the weight, that is, the third-level branch weight> the second-level branch weight> the first-level branch weight, and the sum of the weight coefficients is 1; m represents the number of grades of branches in the plant that extend above the plant's fixed and initial growth zone; The relative branch length is equal to the average branch length measured in the plants of the treatment group / the average branch length of the control group; The relative number of branches is equal to the average number of branches measured in plants of the treatment group / the average number of branches in the control group; Y Represents the relative average leaf area of ​​the part of the plant that is exposed above the plant's fixed and initial growth zone; if the number is less than 10, the average value is taken directly; if the number is more than 10, 10 leaves are randomly selected to take the average value; M Represents the relative number of leaves in a plant that are exposed above the plant's fixation and initial growth zone; The average relative leaf area is equal to the average leaf area measured in the plants of the treatment group / the average leaf area of ​​the control group; the relative number of leaves is equal to the number of leaves measured in the plants of the treatment group / the number of leaves in the control group; r Represents the number of forks in the plant's roots. r =1 means level one, r =2 means level 2, and so on; G r Represents the part of the plant that extends below the plant's fixed and initial growth zone. r The product of the relative branch length and the relative branch number of the graded lateral roots. If the number is less than 5, the average value is taken directly; if it is more than 5, 5 branches are randomly selected to take the average value. Qr represents the branch weight coefficient of the r-th graded lateral root extending below the plant's fixed and initial growth zone. The larger the grade, the greater the weight, that is, the third-level branch weight> the second-level branch weight> the first-level branch weight; The sum of weight coefficients is 1; t It indicates the number of roots in a plant that extend below the plant's fixed and initial growth zone; The relative branch length is equal to the average branch length measured in the plants of the treatment group / the average branch length of the control group; The relative number of branches is equal to the average number of branches measured in the plants of the treatment group / the average number of branches in the control group.

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