A method for making upright Salix psammophila sand barrier with extended service life

Abstract

The invention discloses a method for making an upright tamarisk sand barrier with a prolonged service life, comprising arranging tamarisk sand barrier fixing rods in groups of two or three on a sand dune at intervals, inserting the fixing rods into the ground to a depth of 20 cm, and setting two horizontal rows and two vertical rows connected end to end for each barrier; placing a plurality of tamarisk strips between two fixing rods in each of the three horizontal and vertical groups, and arranging them horizontally from bottom to top to form the side edges of the tamarisk segment frames in horizontal and vertical rows, respectively wrapping and tightening the three groups of fixing rods and each tamarisk strip in turn through three tightening ropes, and fixing the tightening ropes on a rotating block after wrapping around each tamarisk strip; then assembling the side edges of the tamarisk segment frames on the other two sides in turn; and finally rotating the rotating blocks on the tops of the fixing rods to tighten all the tightening ropes. The method for making a tamarisk sand barrier has a simple manufacturing process, reduces the effective contact area between the tamarisk sand barrier and the sand, avoids decay and lodging due to microbial corrosion, and reduces the sand prevention effect of the tamarisk sand barrier, thereby prolonging the service life of the sand barrier.

Description

Technical Field

[0001] The invention relates to the technical field of making sand barriers in desertification prevention and control, and in particular to a method for making an upright Salix psammophila sand barrier with a prolonged service life. Background Art

[0002] In the arid and semi-arid areas of northern my country, desertification has seriously affected the ecological security of northern my country, hindering the construction of ecological civilization and ecological security barriers in northern my country. Salix psammophila has typical drought-resistant characteristics and other biological characteristics such as drought resistance, high temperature resistance, strong wind erosion resistance, and easy reproduction. It can grow widely in harsh environments with strong winds, much sand, drought and little rain. It is mostly distributed in mobile sand dunes, semi-mobile sand dunes and inter-hill lowlands in northwest my country. However, in extremely harsh sandy areas, the growth of Salix psammophila is restricted and it cannot survive. In order to prevent wind erosion or sand burial in the field of desertification prevention and control, and reduce the harm of wind and sand. Many scientific and technological workers use fresh Salix psammophila wicker as materials to set up various forms of Salix psammophila sand barrier configuration modes on the sand surface to control the direction, speed and structure of wind and sand flow, change the ground erosion conditions, and become one of the key sand control modes with scientific and efficient resource utilization in the local area. At the same time, studies have shown that laying Salix psammophila sand barriers on mobile sand dunes can effectively improve the dune microenvironment and promote and accelerate the process of vegetation recovery.

[0003] When using tamarisk to make sand barriers, it is usually adopted to directly insert multiple tamarisks with good interception into the sand to make a barrier for sand prevention. After the tamarisk is cut down and intercepted as a natural biological material, the supply of plant nutrients stops and the cell tissue dies. When the tamarisk sand barrier is exposed to the wild environment for a long time with the increase of service life, it will rot and decay under the action of microorganisms as the service life increases, and it will fall down to varying degrees under the action of environmental temperature and humidity changes, solar radiation, rain erosion, wind erosion and abrasion. Generally, the breakage rate is as high as 80% after 5 years of laying, which makes the material easy to deteriorate, further reduces the mechanical strength of the material, shortens the service life, seriously affects the use value, and affects the wind-proof and sand-fixing function of the sand barrier, which fundamentally affects its ecological benefits.

[0004] Therefore, it is necessary to propose a method for making an upright tamarisk sand barrier with a prolonged service life to solve the above problems. Summary of the invention

[0005] The technical problem to be solved by the present invention is that, in the existing process of making Salix tamarisk sand barriers, the Salix is ​​directly inserted into the sand, which causes the material to deteriorate after a long time, resulting in a high breakage rate and shortening the service life. A method for making an upright Salix tamarisk sand barrier with a prolonged service life is proposed.

[0006] In order to solve the above technical problems, an embodiment of the present invention provides a method for making an upright Salix psammophila sand barrier with a prolonged service life, and the method for making an upright Salix psammophila sand barrier with a prolonged service life comprises:

[0007] Step 1: Select a willow bar, open a circular notch inward on the top of the willow bar, insert the bottom of the rotating block into the circular notch, rotate and connect with the circular notch, and assemble into a fixed rod;

[0008] Step 2: Assemble 6 fixing poles according to the method described in step 1, and then arrange them on the sand dunes in groups of three, with a spacing of 30 cm between two poles. The insertion depth is 20 cm. Three groups are arranged in each horizontal row and each vertical row. Each barrier is provided with two horizontal rows and two vertical rows connected end to end, for a total of 24 fixing poles.

[0009] Step three, place multiple willow branches with diameters ranging from 7 to 13 mm and equal lengths between two fixed rods in each of the three groups of one of the horizontal rows and the adjacent vertical rows, and arrange them horizontally from bottom to top to form the side edges of the willow segment frames in the horizontal and vertical rows, and both ends of the two upper and lower adjacent willow branches on the side edges of the willow segment frames are staggered horizontally to form staggered portions, and during the arrangement process, three groups of fixed rods and each willow branch are respectively wrapped and tied in turn by three tightening ropes on the side edges of the willow segment frames on each side, one end of the tightening rope is fixed on the limiting rod, the limiting rod is fixed between the two fixed rods in each corresponding group, and the other end is wrapped around each willow branch and the two fixed rods and then fixed on the rotating block of one of the fixed rods;

[0010] Step 4, according to the above method, assemble the remaining two sides of the barrier in turn. When assembling, the staggered parts of the two ends of the four groups of the tamarisk frame sides are inserted and arranged vertically in pairs to form a tamarisk sand barrier of a square barrier with a specification of 1m×1m. After the tamarisk frame sides of each group of barriers are staggered and fixed, they are staggered and assembled with the junction sections of the next barrier, that is, the vertical tamarisk frame sides and the horizontal and vertical tamarisk frame sides of another barrier;

[0011] Step 5. Finally, rotate the rotating blocks at the top of each fixed rod to tighten all the tightening ropes.

[0012] Among them, in step one, an internal thread is arranged on the inner wall of the circular groove, an external thread matching the internal thread is arranged on the outer wall of the rotating block, and the bottom end of the rotating block is inserted into the circular groove and connected with the circular groove thread.

[0013] Among them, in step 2, the lengths of the sand-buried section of the fixing rod inserted into the underground part and the exposed section of the above-ground part are equal, both of which are 20 cm, and the diameter of the fixing rod is at least not less than the diameter of the tamarisk branches on the side of the tamarisk section frame.

[0014] Among them, the side of the tamarisk segment frame in step three is composed of 15-28 tamarisk branches with equal diameters. The diameter of the tamarisk branches is generally selected to be 7-13mm, and the length is preferably 63cm, of which the staggered length is 3cm.

[0015] Among them, in step three, the two fixed rods in the same group are respectively connected with the tamarisk strips on the side of the tamarisk segment frame through a tightening rope, and the end of the tightening rope is fixedly tied to the limiting rod. The limiting rod is inserted into the sand between the two fixed rods, and the other end of the tightening rope is fixedly tied to one of the fixed rods in each group of fixed rods. After the tightening rope is wound, it is rotated and tightened through the rotating block at the top of the other fixed rod.

[0016] Implementing the embodiments of the present invention has the following beneficial effects:

[0017] The method for making an upright tamarisk sand barrier with a prolonged service life reduces the effective contact area between the tamarisk sand barrier and the sand by inserting a limiting rod into the sand, and by cooperating with a limiting tamarisk segment frame, a tamarisk fixing rod and a rotating block, thereby reducing the phenomenon that the tamarisk sand barrier's sand-prevention effect is reduced due to the decay and lodging of the sand-prevention segment of the tamarisk sand barrier caused by microbial corrosion in a field sandy area for a long time, thereby achieving the effect of stable sand prevention and long-term use;

[0018] The method for making an upright tamarisk sand barrier with a prolonged service life has the effect of fixing and reinforcing the exposed section of the tamarisk sand barrier by inserting a limiting rod into the sand, adding a limiting tamarisk section frame, a tamarisk fixing rod and a rotating block, thereby reducing the occurrence of cracking, warping, deformation and breakage of the tamarisk sand barrier in the exposed section of the sandy area due to natural factors such as changes in environmental temperature and humidity, solar radiation, rainwater erosion, wind erosion and abrasion, thereby achieving the effect of stable sand prevention and long-term use;

[0019] The method for making an upright tamarisk sand barrier with an extended service life enables the fixing rod to stably wind the tightening rope through the cooperation of the fixing rod and the rotating block, and can fix the wound tightening rope, so that the tightening rope can achieve the tightening effect, and the tamarisk sand barrier can be stably fixed, thereby optimizing the wind-proof and sand-fixing effect of the tamarisk sand barrier. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the structure of the upright Salix psammophila sand barrier provided by the present invention;

[0022] Figure 2 for Figure 1 Structural schematic diagram of the side of the frame of the middle Salix psammophila section;

[0023] Figure 3 for Figure 1 Schematic diagram of the structure of the fixed rod.

[0024] In the figure: a circular notch 1, a rotating block 2, a fixing rod 3, a tamarisk strip 4, a tamarisk section frame side 5, an interlaced portion 6, a tightening rope 7 and a limiting rod 8. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0026] See also Figure 1-3 , Figure 1 A schematic diagram of the structure of the upright Salix psammophila sand barrier provided by the present invention; Figure 2 for Figure 1 Structural schematic diagram of the side of the frame of the middle Salix psammophila section; Figure 3 for Figure 1 Schematic diagram of the structure of the fixed rod.

[0027] The method for making the upright Salix psammophila sand barrier with a prolonged service life comprises:

[0028] Step 1: Select a tamarisk branch, open a circular notch 1 inward from the top of the tamarisk branch, insert the bottom of the rotating block 2 into the circular notch 1, rotate it to connect with the circular notch 1, and assemble it into a fixed rod 3.

[0029] Preferably, an internal thread is provided on the inner wall of the circular notch 1, an external thread is provided on the outer wall of the rotating block 2, and the bottom end of the rotating block 2 is inserted into the circular notch 1 and threadedly connected with the circular notch 1. The rotating block 2 can be made of a section of tamarisk block directly cut from the end of the tamarisk strip.

[0030] Step 2. Assemble 6 fixing rods 3 according to the method described in step 1, and then arrange them on the sand dunes in three groups with a spacing of 30 cm between two groups. The insertion depth is 20 cm. Three groups are arranged in each horizontal row and each vertical row. Each barrier is provided with two horizontal rows and two vertical rows connected end to end, for a total of 24 fixing rods 3.

[0031] The length of each fixing rod 3 inserted into the underground buried section and the above-ground exposed section are equal, preferably 20 cm, and the diameter of the fixing rod 3 is at least not less than the diameter of the tamarisk strips 4 on the side 5 of the tamarisk segment frame.

[0032] Step three, place multiple tamarisk strips 4 with equal lengths and diameters within the range of 7 to 13 mm between two fixed rods 3 in each of the three groups of one horizontal row and one adjacent vertical row, and arrange them horizontally from bottom to top to form horizontal and vertical rows of tamarisk section frame side edges 5, and both ends of the upper and lower adjacent tamarisk strips 4 on the tamarisk section frame side edges 5 are staggered horizontally to form an interlaced portion 6 (from bottom to top, the ends of the odd-numbered tamarisk strips are aligned, the ends of the even-numbered tamarisk strips are aligned, the ends of the odd and even-numbered tamarisk strips are staggered, and the ends form an interlaced portion), and during the arrangement process, three tightening ropes 7 are used to wrap and tighten the three groups of fixed rods 3 and each tamarisk strip 4 in turn on the tamarisk section frame side edges 5 on each side, one end of the tightening rope 7 is fixed on the limiting rod 8, the limiting rod 8 is fixed between the corresponding two fixed rods 3 of each group, and the other end is wrapped around each tamarisk strip 4 and the two fixed rods 3 and then fixed on the rotating block 2 of one of the fixed rods 3.

[0033] Among them, the side edge 5 of the tamarisk segment frame is composed of 15-28 tamarisk branches 4 with equal diameters, the length is preferably 63 cm, and the staggered part 6 is 3 cm long.

[0034] The two fixed rods 3 in the same group are respectively connected to the willow branches 4 on the side 5 of the willow segment frame by a tightening rope, and the end of the tightening rope 7 is fixedly tied to the same limit rod 8, and the limit rod 8 is inserted into the sand between the two fixed rods 3. The other end of the tightening rope 7 is fixedly tied to one of the fixed rods in each group of fixed rods 3. After the tightening rope 7 is wound, it is rotated and tightened through the rotating block 2 at the top of the other fixed rod 3. The tightening rope 7 can be made of degradable rope, which is more environmentally friendly.

[0035] Step 4. According to the above method, assemble the remaining tamarisk section frame sides 5 on both sides of the barrier in turn. During assembly, the intersecting parts 6 at both ends of the four groups of tamarisk section frame sides 5 are inserted vertically and intersected in pairs to form a tamarisk sand barrier of a square barrier with a specification of 1m×1m. After the tamarisk section frame sides 5 of each group of barriers are intersected and fixed, they are intersected and assembled with the junction sections of the next barrier, that is, the vertical tamarisk section frame sides and the horizontal and vertical tamarisk section frame sides of another barrier.

[0036] Step 5: Finally, rotate the rotating block 2 at the top of each fixed rod 3 to tighten all the tightening ropes 7.

[0037] The method for making an upright tamarisk sand barrier with a prolonged service life is as follows: first, the lower half of the fixing rod is fixed in the sand, and then the side of the tamarisk section frame is installed. During the installation process, the tamarisk strips constituting the side of the tamarisk section frame are tied to the fixing rod by tightening ropes, one end of the tightening rope is fixed to the limit rod, the limit rod is buried in the sand, and the other end of the tightening rope is fixed to the rotating block at the top of the corresponding fixing rod (the number of fixing rods and tightening ropes corresponds one to one). According to the above method, two horizontal rows and two vertical rows of tamarisk section frame sides are installed respectively, and during the installation process, the two ends of the four groups of tamarisk section frame sides are inserted and arranged vertically and staggered in pairs to form a square tamarisk section frame. After the assembly is completed, all tightening ropes are tightened by rotating the rotating blocks at the top of each fixing rod.

[0038] The method for making an upright Salix psammophila sand barrier with a prolonged service life is simple and convenient. The Salix psammophila sand barrier made by the method effectively reduces the contact area with the sand, thereby reducing the decay of the sand-buried section of the Salix psammophila sand barrier due to microbial corrosion, which leads to a decrease in the physical and mechanical properties and reduces the sand-control effect of the Salix psammophila sand barrier, thereby achieving the effect of stable sand control and long-term use. In addition, it also reduces the cracking, warping, deformation and breakage of the Salix psammophila sand barrier in the exposed section of the sandy area due to natural factors such as changes in environmental temperature and humidity, solar radiation, rainwater erosion, wind erosion and abrasion, thereby achieving the effect of stable sand control and long-term use.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for making an upright Salix psammophila sand barrier with a prolonged service life, characterized in that: The following steps are involved: Step 1: Select a willow bar, open a circular notch inward on the top of the willow bar, insert the bottom of the rotating block into the circular notch, rotate and connect with the circular notch, and assemble into a fixed rod; Step 2: Assemble 6 fixing rods according to the method described in step 1, and then arrange them on the sand dunes in groups of two with an interval of 30 cm, with an insertion depth of 20 cm. Set three groups at intervals in each horizontal row and each vertical row, and set two horizontal rows and two vertical rows connected end to end in each barrier, for a total of 24 fixing rods; Step three, place multiple willow branches with diameters ranging from 7 to 13 mm and equal lengths between two fixed rods in each of the three groups of one of the horizontal rows and the adjacent vertical rows, and arrange them horizontally from bottom to top to form the side edges of the willow segment frames in the horizontal and vertical rows, and both ends of the two upper and lower adjacent willow branches on the side edges of the willow segment frames are staggered horizontally to form staggered portions, and during the arrangement process, three groups of fixed rods and each willow branch are respectively wrapped and tied in turn by three tightening ropes on the side edges of the willow segment frames on each side, one end of the tightening rope is fixed on the limiting rod, the limiting rod is fixed between the two fixed rods in each corresponding group, and the other end is wrapped around each willow branch and the two fixed rods and then fixed on the rotating block of one of the fixed rods; Step 4, according to the above method, assemble the remaining two sides of the barrier in turn. When assembling, the staggered parts of the two ends of the four groups of the tamarisk frame sides are inserted and arranged vertically in pairs to form a tamarisk sand barrier of a square barrier with a specification of 1m×1m. After the tamarisk frame sides of each group of barriers are staggered and fixed, they are staggered and assembled with the junction sections of the next barrier, that is, the vertical tamarisk frame sides and the horizontal and vertical tamarisk frame sides of another barrier; Step 5. Finally, rotate the rotating blocks at the top of each fixed rod to tighten all the tightening ropes.

2. The method for making an upright Salix psammophila sand barrier with a prolonged service life according to claim 1, characterized in that: In the step 1, an internal thread is arranged on the inner wall of the circular notch, an external thread matching the internal thread is arranged on the outer wall of the rotating block, and the bottom end of the rotating block is inserted into the circular notch and connected with the circular notch thread.

3. The method for making an upright Salix psammophila sand barrier with a prolonged service life according to claim 2, characterized in that: In the step 2, the lengths of the sand-buried section of the underground part and the exposed section of the above-ground part of the fixing rod inserted are equal, both of which are 20 cm. The diameter of the fixing rod is at least not less than the diameter of the tamarisk strips on the side of the tamarisk segment frame.

4. The method for making an upright Salix psammophila sand barrier with a prolonged service life according to claim 1, characterized in that: The side edge of the tamarisk segment frame in step three is composed of 15-28 tamarisk branches with equal diameters and a length of 63 cm, of which the staggered length is 3 cm.

5. The method for making an upright Salix psammophila sand barrier with a prolonged service life according to claim 1, characterized in that: In the step three, the two fixed rods in the same group are respectively connected to the tamarisk strips on the side of the tamarisk segment frame by a tightening rope, and the end of the tightening rope is fixedly tied to the limiting rod. The limiting rod is inserted into the sand between the two fixed rods. The other end of the tightening rope is fixedly tied to one of the fixed rods in each group of fixed rods. After the tightening rope is wound, it is rotated and tightened through the rotating block at the top of the other fixed rod.

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