Quantitative determination method and device for wind erosion and wind accumulation between furrows based on changing wind directions

Abstract

The invention provides a method and a device for quantitatively determining wind erosion and aeolian of an inter-trench land based on a variable wind direction, and relates to the technical field of wind erosion and aeolian quantitative determination, and the method comprises the following steps: obtaining an inter-trench land region area of the inter-trench land with the variable wind direction; the area of the inter-trench land region represents the area between the drainage basin watershed of the variable wind direction inter-trench land and the trench edge line of the variable wind direction inter-trench land; obtaining the sand transportation material mass and the sand transportation width of the land between the variable wind direction ditches; determining the total mass of the sand transportation substances according to the mass of the sand transportation substances and the sand transportation width; according to the area of the inter-trench land region and the total mass of the sand transportation substances, determining the wind erosion and wind accumulation quantification of the inter-trench land in the variable wind direction. According to the technical scheme, the wind erosion and aeolian volume quantification of the interditch land with the variable wind direction is determined according to the area of the interditch land region, the sand transportation material mass and the sand transportation width, from the equipment and the interditch land, accurate monitoring of the interditch land with the variable wind direction is improved, and the monitoring accuracy of the wind erosion and aeolian volume quantification of the interditch land is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wind erosion and accumulation quantitative determination, and particularly relates to a method and device for quantitatively determining inter-rill wind erosion and accumulation based on changing wind direction. BACKGROUND

[0002] Inter-rill refers to the area from the watershed to the gully edge line, and the process of wind erosion and accumulation thereof deeply affects the soil erosion process in the water and wind combined erosion area. Research on the soil erosion characteristics of inter-rill is of great significance to clarifying the mechanism of water and soil loss in the water and wind combined erosion area, guiding the prediction and prevention of water and soil loss in the water and wind combined erosion area.

[0003] At present, in the prior art, the mainstream method for monitoring wind erosion is to adjust the monitoring device to improve the monitoring accuracy of the monitoring device on the target region. However, simply adjusting the monitoring device cannot accurately adapt to the variable target region, resulting in a decrease in the monitoring accuracy of the target region.

[0004] Therefore, there is an urgent need for a method for quantitatively determining inter-rill wind erosion and accumulation based on changing wind direction to improve the accurate monitoring of inter-rill in changing wind direction. SUMMARY

[0005] The present application provides a method and device for quantitatively determining inter-rill wind erosion and accumulation based on changing wind direction to solve the problem of the prior art that simply adjusting the monitoring device cannot accurately adapt to the variable target region, resulting in a decrease in the monitoring accuracy of the target region. The method and device consider the area of the inter-rill region in the changing wind direction, and timely monitor the sediment mass and sediment width of the inter-rill region in the changing wind direction based on the monitoring device, so as to comprehensively determine the inter-rill wind erosion and accumulation of the inter-rill region in the changing wind direction according to the area of the inter-rill region, the sediment mass and the sediment width, and improve the accurate monitoring of the inter-rill region in the changing wind direction from the device and the inter-rill region itself, and improve the monitoring accuracy of the inter-rill wind erosion and accumulation.

[0006] The present application provides a method for quantitatively determining inter-rill wind erosion and accumulation based on changing wind direction, comprising the following steps.

[0007] Obtain the area of the inter-rill region in the changing wind direction; wherein the area of the inter-rill region represents the area between the watershed of the changing wind direction inter-rill region and the gully edge line of the changing wind direction inter-rill region.

[0008] Obtain the sediment mass and sediment width of the changing wind direction inter-rill region.

[0009] Determine the total sediment mass according to the sediment mass and the sediment width.

[0010] The inter-rill area wind erosion and deposition of the inter-rill area with changing wind direction is quantitatively determined according to the inter-rill area and the total mass of the sediment.

[0011] The application provides a method for quantitatively determining inter-rill area wind erosion and deposition based on changing wind direction, the mass of the sediment includes the mass of the incoming sediment and the mass of the outgoing sediment, and the width of the sediment includes the width of the incoming sediment and the width of the outgoing sediment; the mass of the sediment and the width of the sediment of the inter-rill area with changing wind direction are obtained, including: the mass of the incoming sediment is obtained by using an incoming sediment mass monitoring sand collector, and the mass of the outgoing sediment is obtained by using an outgoing sediment mass monitoring sand collector; wherein the incoming sediment mass monitoring sand collector and the outgoing sediment mass monitoring sand collector are instruments for monitoring the mass of the sediment, and are arranged on the watershed and the gully edge line of the inter-rill area with changing wind direction; the width of the incoming sediment is obtained by using an incoming inter-rill area width monitoring instrument, and the width of the outgoing sediment is obtained by using an outgoing inter-rill area width monitoring instrument; wherein the incoming inter-rill area width monitoring instrument and the outgoing inter-rill area width monitoring instrument are instruments for monitoring the width of the sediment, and are arranged on the watershed and the gully edge line of the inter-rill area with changing wind direction.

[0012] The application provides a method for quantitatively determining inter-rill area wind erosion and deposition based on changing wind direction, the total mass of the sediment includes the total mass of the incoming sediment and the total mass of the outgoing sediment; the total mass of the sediment is determined according to the mass of the sediment and the width of the sediment, including: the total mass of the incoming sediment is determined according to the mass of the incoming sediment and the width of the incoming sediment; and the total mass of the outgoing sediment is determined according to the mass of the outgoing sediment and the width of the outgoing sediment.

[0013] The application provides a method for quantitatively determining inter-rill area wind erosion and deposition based on changing wind direction, the total mass of the incoming sediment = ; wherein, and are different constant coefficients, and represent the corresponding mass of the incoming sediment obtained by using different incoming sediment mass monitoring sand collectors, represents the width of the incoming sediment.

[0014] The application provides a method for quantitatively determining inter-rill area wind erosion and deposition based on changing wind direction, the total mass of the outgoing sediment = ; wherein, and is different constant coefficient, and represents the corresponding inter-rill erosion sediment yield of the outflow inter-rill sediment transport material mass monitoring sediment trap, represents the outflow inter-rill sediment transport width.

[0015] According to the inter-rill erosion sediment yield quantitative determination method based on the changing wind direction provided by the present application, the inter-rill erosion sediment yield quantitative ; wherein, represents the total mass of the inflow inter-rill sediment transport material, represents the total mass of the outflow inter-rill sediment transport material, represents the inter-rill region area.

[0016] The present application also provides an inter-rill erosion sediment yield quantitative determination device based on the changing wind direction, comprising the following modules.

[0017] The first acquisition module is used to acquire the inter-rill region area of the inter-rill region with changing wind direction; wherein, the inter-rill region area represents the area between the drainage divide of the inter-rill region with changing wind direction and the gully edge line of the inter-rill region with changing wind direction.

[0018] The second acquisition module is used to acquire the sediment transport material mass and the sediment transport width of the inter-rill region with changing wind direction.

[0019] The mass determination module is used to determine the total mass of the sediment transport material according to the sediment transport material mass and the sediment transport width.

[0020] The quantitative determination module is used to determine the inter-rill erosion sediment yield quantitative of the inter-rill region with changing wind direction according to the inter-rill region area and the total mass of the sediment transport material.

[0021] The present application also provides an electronic device, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, and the processor implements any of the above inter-rill erosion sediment yield quantitative determination methods based on the changing wind direction when executing the computer program.

[0022] The present application also provides a non-transitory computer readable storage medium, which stores a computer program, and the computer program is executed by the processor to implement any of the above inter-rill erosion sediment yield quantitative determination methods based on the changing wind direction.

[0023] The present application also provides a computer program product, comprising a computer program, and the computer program is executed by the processor to implement any of the above inter-rill erosion sediment yield quantitative determination methods based on the changing wind direction.

[0024] The application provides a method and device for quantitatively determining interdune wind erosion and deposition of an interdune area with changing wind direction, which comprises the following steps: obtaining an interdune area of the interdune area with changing wind direction; wherein the interdune area represents an area between a drainage divide of the interdune area with changing wind direction and a gully edge line of the interdune area with changing wind direction; obtaining the mass of sediment transport material and the width of sediment transport of the interdune area with changing wind direction; determining the total mass of sediment transport material according to the mass of sediment transport material and the width of sediment transport; and determining the interdune wind erosion and deposition of the interdune area with changing wind direction according to the interdune area and the total mass of sediment transport material. The technical scheme of the application is used to solve the defect that the simple adjustment of the monitoring equipment cannot accurately adapt to the changing target region, resulting in the decline of the monitoring accuracy of the target region, realizes the determination of the interdune wind erosion and deposition of the interdune area with changing wind direction according to the interdune area, the mass of sediment transport material and the width of sediment transport, and improves the accurate monitoring of the interdune area with changing wind direction and the monitoring accuracy of the interdune wind erosion and deposition from the equipment and the interdune area itself. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0026] Figure 1 is a flowchart of the method for quantitatively determining interdune wind erosion and deposition of an interdune area with changing wind direction provided by the present application.

[0027] Figure 2 is a schematic diagram of unstable wind direction provided by the present application.

[0028] Figure 3 is a schematic diagram of the layout of a sand collector under the condition of unstable wind direction provided by the present application.

[0029] Figure 4 is a structural schematic diagram of the device for quantitatively determining interdune wind erosion and deposition of an interdune area with changing wind direction provided by the present application.

[0030] Figure 5 is a structural schematic diagram of the electronic device provided by the present application. DETAILED DESCRIPTION

[0031] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be described clearly and completely below with reference to the drawings in the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0032] The present application is described below in combination with Figure 1 The present application provides a method for quantitatively determining wind erosion and deposition in interdune areas based on changing wind direction. The method can be used for monitoring and calculating the wind erosion and deposition in interdune areas with changing wind direction. The execution subject of the method can be an electronic device or a device for quantitatively determining wind erosion and deposition in interdune areas based on changing wind direction arranged in the electronic device. The device can be realized by software, hardware or a combination of both. Figure 1 The present application provides a method for quantitatively determining wind erosion and deposition in interdune areas based on changing wind direction. The method can be used for monitoring and calculating the wind erosion and deposition in interdune areas with changing wind direction. The execution subject of the method can be an electronic device or a device for quantitatively determining wind erosion and deposition in interdune areas based on changing wind direction arranged in the electronic device. The device can be realized by software, hardware or a combination of both. Figure 1 As shown in the figure, the method comprises the following steps 101, 102, 103 and 104.

[0033] Step 101: obtaining the area of the interdune area of the interdune area with changing wind direction.

[0034] In this step, the area of the interdune area represents the area between the watershed of the interdune area with changing wind direction and the gully edge line of the interdune area with changing wind direction.

[0035] The interdune area with changing wind direction is an interdune area with non-stable wind direction. The interdune area specifically refers to the area from the watershed to the gully edge line. The wind erosion and deposition process of the interdune area has a profound impact on the soil erosion process of the wind-water combined erosion area. The wind erosion and deposition of the interdune area mainly occurs in arid and semi-arid areas, and the prevailing wind direction is generally northwest. The wind erosion mainly occurs in spring and winter, which is not limited in this embodiment.

[0036] Specifically, the interdune area with changing wind direction is determined, and the area of the interdune area with changing wind direction is obtained.

[0037] Step 102: obtaining the sediment material mass and sediment width of the interdune area with changing wind direction.

[0038] Specifically, a sand collector is arranged in the interdune area with changing wind direction, and the sediment material mass and sediment width of the interdune area with changing wind direction are obtained through the arranged sand collector.

[0039] In a specific embodiment, the method for obtaining the sediment mass and the sediment width of the interdune area in the changing wind direction comprises: obtaining the inflow interdune area sediment mass according to the inflow sediment mass monitoring collector and obtaining the outflow interdune area sediment mass according to the outflow sediment mass monitoring collector; wherein the inflow sediment mass monitoring collector and the outflow sediment mass monitoring collector are instruments for monitoring the sediment mass, and are arranged on the watershed and the gully edge line of the interdune area in the changing wind direction; obtaining the inflow interdune area sediment width according to the inflow interdune area width monitoring instrument and obtaining the outflow interdune area sediment width according to the outflow interdune area width monitoring instrument; wherein the inflow interdune area width monitoring instrument and the outflow interdune area width monitoring instrument are instruments for monitoring the sediment width, and are arranged on the watershed and the gully edge line of the interdune area in the changing wind direction.

[0040] In this step, the sediment mass includes the inflow interdune area sediment mass and the outflow interdune area sediment mass, and the sediment width includes the inflow interdune area sediment width and the outflow interdune area sediment width.

[0041] The collector includes the inflow sediment mass monitoring collector and the outflow sediment mass monitoring collector, and the arrangement method of the collector in the interdune area in the changing wind direction is generally to divide the small watershed of the interdune area in the changing wind direction into two different types according to the wind direction of the main gully, that is, the northeast-southwest (NE-SW) wind direction perpendicular to the prevailing wind direction and the northwest-southeast (NW-SE) wind direction parallel to the prevailing wind direction. When the main gully of the small watershed presents the northeast-southwest (NE-SW) direction, the actual direction can change in the first and third quadrants of the east-south-north four quadrants, that is, the prevailing wind direction always blows from the northwest boundary to the southeast boundary of the small watershed, forming a stable wind direction from the northwest side of the main gully of the small watershed to the southeast side, and the wind sand carried by the wind always flows from the northwest side to the southeast side of the small watershed, so the wind direction of the interdune area on the northwest side of the main gully of the small watershed always blows from the watershed to the gully edge line, and the wind direction of the interdune area on the southeast side of the main gully of the small watershed always blows from the gully edge line to the watershed. When the main gully of the small watershed presents the northeast-southwest (NW-SE) direction, the wind direction can blow from the northeast boundary to the southwest boundary, or from the southwest boundary to the northeast boundary, or flow into or out of the same side of the main gully in the northwest wind range with the change of the angle of the wind direction, forming an unstable state of the wind force transport, and also leading to the difference of the movement direction of the wind sand accompanying the wind force movement, but the sediment wind direction always presents the characteristic of blowing from the northwest direction to the southeast direction, Figure 2 is a schematic diagram of the unstable wind direction provided by the application, as Figure 2As shown, the changing wind direction interdune area is composed of a watershed, two interdune ridge lines and a main channel, the dashed line between the two interdune ridge lines represents the main channel, the outer solid line represents the watershed, the solid line with an arrow N represents the direction of north, the solid line with an arrow E represents the direction of east, and the 10 dashed lines with arrows represent different wind directions.

[0042] The sand trap arrangement mainly includes sand trap installation and anemometer installation. First, a suitable non-steady wind direction interdune area is selected, the position of the sand trap arrangement is determined according to the linear change of the interdune ridge line and the interdune ridge line and the change of the interdune microtopography, and the distance between adjacent sand traps is reasonably determined according to the actual situation of the interdune ridge line and the watershed. A cylindrical pit with a depth of about 50 cm and a diameter of 10 cm larger than the bottom disc of the fixed rod is excavated at the determined position for burying the sand trap. Each set of sand traps is composed of a fixed rod, a bottom disc, a sand trap box and a box holder. The bottom disc is designed with screw holes matched with anchor bolts, the bottom of the fixed rod is inserted into the bottom disc, and the length of the fixed rod is generally 2.1-2.6 meters (determined according to the installation height of the sand trap box), of which about 0.5 meters is vertically buried underground. Each set of sand traps is equipped with 3 fishing lines to increase the stability of the sand traps. The installation height of the sand trap box is determined, the box holder is fixed at the corresponding height of the sand trap, and the sand trap box is placed on the box holder. After the above steps are completed, the observation of wind erosion events can be carried out. Then, a weather station capable of measuring and automatically recording wind speed and direction data is installed at the center or representative area of the interdune area. The height of the wind speed sensor is recommended to be 1 meter and 2 meters, and the recording interval is recommended to be 2 minutes. After the above steps are completed, the observation of wind erosion events in the changing wind direction interdune area can be carried out. After the secondary wind erosion event, the wind erosion material in each sand trap is collected. When collecting, the sand trap box fixed on the card holder is unloaded and taken back to the indoor windless environment, the wind erosion material in the sand trap is carefully swept into the corresponding self-sealing bag which has been weighed and labeled, and the weight is weighed again. The difference between the two weights is the mass of the wind erosion material collected by the sand trap.

[0043] Specifically, after the sand traps are arranged, the corresponding inflow interdune area sediment mass is obtained from the arranged all-inflow sediment mass monitoring sand traps, and the corresponding outflow interdune area sediment mass is obtained from the arranged all-outflow sediment mass monitoring sand traps; at the same time, the inflow interdune area sediment width is obtained from the arranged inflow interdune area width monitor, and the outflow interdune area sediment width is obtained from the arranged outflow interdune area width monitor.

[0044] Step 103, determining the total sediment mass according to the sediment mass and the sediment width.

[0045] Specifically, after the sediment mass and the sediment width are obtained, the total sediment mass is determined according to the product of the sediment mass and the sediment width.

[0046] In an embodiment, the total sediment mass includes an inflow interdune sediment mass and an outflow interdune sediment mass.

[0047] In an embodiment, the total sediment mass is determined according to the sediment mass and the sediment width, including: determining the inflow interdune sediment mass according to the inflow interdune sediment mass and the inflow interdune width; and determining the outflow interdune sediment mass according to the outflow interdune sediment mass and the outflow interdune width.

[0048] Specifically, the inflow interdune sediment mass is determined according to the product of the inflow interdune sediment mass and the inflow interdune width; and the outflow interdune sediment mass is determined according to the product of the outflow interdune sediment mass and the outflow interdune width.

[0049] In an embodiment, the total inflow interdune sediment mass ; wherein, and are different constant coefficients, and represent the corresponding inflow interdune sediment mass obtained by different inflow sediment mass monitoring sediment traps, represents the inflow interdune width.

[0050] In this step, represents the total number of inflow sediment mass monitoring sediment traps arranged in the interdune area with changing wind direction, and represent different inflow sediment mass monitoring sediment traps, which are not limited in the embodiment.

[0051] Specifically, different inflow interdune sediment masses are obtained by different inflow sediment mass monitoring sediment traps, and then the total inflow interdune sediment mass is determined according to the product of the inflow interdune sediment mass obtained by the different inflow sediment mass monitoring sediment traps and the inflow interdune width obtained by the inflow interdune width monitoring instrument arranged in the interdune area with changing wind direction, that is, the total inflow interdune sediment mass ; wherein, and are different constant coefficients, and represent the corresponding inflow interdune sediment mass obtained by different inflow sediment mass monitoring sediment traps,​​ represents the width of the interrill flow.

[0052] In a specific embodiment, the total mass of the outflow interrill sediment transport = ; wherein, and are different constant coefficients, and represent the corresponding mass of the outflow interrill sediment transport obtained by different outflow sediment mass monitoring sediment traps, represents the width of the outflow interrill flow.

[0053] In this step, represents the total number of outflow sediment mass monitoring sediment traps arranged in the interrill area with changing wind direction, and represent different outflow sediment mass monitoring sediment traps, which are not limited in the embodiment.

[0054] Specifically, different masses of the outflow interrill sediment transport are obtained by different outflow sediment mass monitoring sediment traps, and then the total mass of the outflow interrill sediment transport is determined according to the product of the mass of the outflow interrill sediment transport obtained by different outflow sediment mass monitoring sediment traps and the width of the outflow interrill flow obtained by the outflow interrill width monitoring instrument arranged in the interrill area with changing wind direction, that is, the total mass of the outflow interrill sediment transport = ; wherein, and are different constant coefficients, and represent the corresponding mass of the outflow interrill sediment transport obtained by different outflow sediment mass monitoring sediment traps, represents the width of the outflow interrill flow.

[0055] Exemplarily, Figure 3 is a schematic diagram of the arrangement of the sediment trap under unstable wind direction conditions provided by the present application, as shown in Figure 3 , the interrill area with changing wind direction includes a main channel, a watershed and a gully edge line. For a small watershed in which the main channel is overall consistent with the prevailing direction (for example, the main channel in Figure 3 and the wind direction of the blue solid line with an arrow), the wind erosion (accumulation) on the small watershed scale is composed of the wind erosion (accumulation) of the interrill area (watershed to gully edge line) on both sides of the main channel and the wind erosion (accumulation) of the slope (main channel to gully edge line) on both sides of the main channel (under the action of gravity, the slope generally presents a transport to the channel). Since the main wind direction is northwest, for the interrill area on the southwest side of the main channel of the small watershed, the total mass of the sediment transport is composed of the sediment traps going to directions, , , , , , , represent different inflow sediment mass monitoring sediment traps, represent different outflow sediment mass monitoring sediment traps, , , , , , , represent different inflow sediment mass monitoring sediment traps, represent different outflow sediment mass monitoring sediment traps. Take the region for example, represent different inflow interrill width monitoring devices and inflow interrill width monitoring devices monitor the inflow interrill sediment width. represent different outflow interrill width monitoring devices and outflow interrill width monitoring devices monitor the outflow interrill sediment width. The total inflow interrill sediment mass = , the total outflow interrill sediment mass = . and are the sediment mass collected by different inflow sediment traps into the region respectively; are the sediment mass collected by different outflow sediment traps out of the region respectively; represent the inflow interrill sediment width, represent the outflow interrill sediment width, when there are other sediment traps on the line segment and (or) , and (or) should be the average of the observation data of all sediment traps on the corresponding line segment.

[0056] Further, in the specific embodiments, the line segment and (or) may be provided with at least two, and providing multiple can improve the accuracy of the observation data, which is not specifically limited in the present embodiment.

[0057] Step 104, determining the interrill wind erosion and deposition of the interrill region with changing wind direction according to the area of the interrill region and the total sediment mass.

[0058] Specifically, after obtaining the inter-rill area and the total mass of sediment, the inter-rill wind erosion and deposition of the inter-rill area with changing wind direction is determined according to the quotient of the inter-rill area and the total mass of sediment.

[0059] In a specific embodiment, the inter-rill wind erosion and deposition is quantified by ; wherein, represents the total mass of sediment flowing into the inter-rill area, represents the total mass of sediment flowing out of the inter-rill area, represents the inter-rill area.

[0060] For example, for a small river basin, the area where the measurement is located is a typical temperate continental climate, with strong and frequent winds in winter and spring, an average annual wind speed of 2.5-3.5 meters per second, and an average annual gale day of 20-40 days, mostly concentrated in spring. The channel in this section is in the direction of WN-ES, the inter-rill area is 234622 square meters, the length of the watershed is 1983 meters, the length of the gully edge line is 1577 meters, and the distance L between the adjacent sand collection instruments of the gully edge line is 400 meters. The test is carried out in spring of 2XX4, and 2 wind erosion events are observed. The measurement results are shown in Table 1, which shows the inter-rill wind erosion and deposition of the inter-rill area with changing wind direction (non-stable wind direction inter-rill area). The measurement area of the inter-rill area has wind erosion, and the inter-rill wind erosion and deposition is between 0.01-0.07 tons per hectare.

[0061] Table 1

[0062] The advantage of such a setting is that, based on the mass balance theory, the sand collection instrument is arranged, which is simple to arrange and convenient to measure, has high accuracy, and can accurately measure the inter-rill wind erosion and deposition of the inter-rill area with changing wind direction.

[0063] The application provides a method for quantitatively determining interdune wind erosion and deposition of an interdune area with changing wind direction, which comprises the following steps: obtaining an interdune area of the interdune area with changing wind direction; wherein the interdune area represents an area between a drainage divide of the interdune area with changing wind direction and a gully edge line of the interdune area with changing wind direction; obtaining the mass of sediment transport material and the width of sediment transport of the interdune area with changing wind direction; determining the total mass of sediment transport material according to the mass of sediment transport material and the width of sediment transport; and determining the interdune wind erosion and deposition of the interdune area with changing wind direction according to the interdune area and the total mass of sediment transport material. Based on the above embodiment, the technical scheme of the application is used to solve the defect that the simple adjustment of the monitoring equipment cannot accurately adapt to the changing target region, resulting in the decline of the monitoring accuracy of the target region, realizes the consideration of the interdune area of the interdune area with changing wind direction, timely monitoring of the mass of sediment transport material and the width of sediment transport of the interdune area with changing wind direction based on the monitoring equipment, and the comprehensive determination of the interdune wind erosion and deposition of the interdune area with changing wind direction according to the interdune area, the mass of sediment transport material and the width of sediment transport, so that the accurate monitoring of the interdune area with changing wind direction is improved from the equipment and the interdune area itself, and the monitoring accuracy of the interdune wind erosion and deposition is improved.

[0064] The interdune wind erosion and deposition quantitative determination device based on changing wind direction provided by the application is described below, and the interdune wind erosion and deposition quantitative determination device based on changing wind direction described below can be correspondingly referred to the interdune wind erosion and deposition quantitative determination method based on changing wind direction described above.

[0065] Figure 4 FIG. 1 is a structural schematic diagram of the interdune wind erosion and deposition quantitative determination device based on changing wind direction provided by the application, as shown in the figure, the interdune wind erosion and deposition quantitative determination device based on changing wind direction 400 comprises a first obtaining module 401, a second obtaining module 402, a mass determination module 403 and a quantitative determination module 404. Figure 4

[0066] The first obtaining module 401 is used to obtain the interdune area of the interdune area with changing wind direction; wherein the interdune area represents an area between a drainage divide of the interdune area with changing wind direction and a gully edge line of the interdune area with changing wind direction.

[0067] The second obtaining module 402 is used to obtain the mass of sediment transport material and the width of sediment transport of the interdune area with changing wind direction.

[0068] The mass determination module 403 is used to determine the total mass of sediment transport material according to the mass of sediment transport material and the width of sediment transport.

[0069] The quantitative determination module 404 is used to determine the interdune wind erosion and deposition of the interdune area with changing wind direction according to the interdune area and the total mass of sediment transport material.

[0070] ​In an example embodiment, the sediment discharge mass includes an incoming interdune sediment discharge mass and an outgoing interdune sediment discharge mass, and the sediment discharge width includes an incoming interdune sediment discharge width and an outgoing interdune sediment discharge width.

[0071] In an example embodiment, the second acquisition module 402 is specifically configured to: acquire the incoming interdune sediment discharge mass according to an incoming interdune sediment discharge mass monitoring sediment trap, and acquire the outgoing interdune sediment discharge mass according to an outgoing interdune sediment discharge mass monitoring sediment trap; the incoming interdune sediment discharge mass monitoring sediment trap and the outgoing interdune sediment discharge mass monitoring sediment trap are instruments for monitoring the sediment discharge mass, and are arranged on a watershed and a gully edge line of the wind direction changing interdune; acquire the incoming interdune sediment discharge width according to an incoming interdune sediment discharge width monitoring instrument, and acquire the outgoing interdune sediment discharge width according to an outgoing interdune sediment discharge width monitoring instrument; the incoming interdune sediment discharge width monitoring instrument and the outgoing interdune sediment discharge width monitoring instrument are instruments for monitoring the sediment discharge width, and are arranged on the watershed and the gully edge line of the wind direction changing interdune.

[0072] In an example embodiment, the total sediment discharge mass includes a total incoming interdune sediment discharge mass and a total outgoing interdune sediment discharge mass.

[0073] In an example embodiment, the mass determination module 403 is specifically configured to: determine the total incoming interdune sediment discharge mass according to the incoming interdune sediment discharge mass and the incoming interdune sediment discharge width; and determine the total outgoing interdune sediment discharge mass according to the outgoing interdune sediment discharge mass and the outgoing interdune sediment discharge width.

[0074] In an example embodiment, the total incoming interdune sediment discharge mass = ; wherein, and are different constant coefficients, and represent corresponding incoming interdune sediment discharge masses obtained by different incoming interdune sediment discharge mass monitoring sediment traps, represents the incoming interdune sediment discharge width.

[0075] In an example embodiment, the total outgoing interdune sediment discharge mass = ; wherein, and are different constant coefficients, and represent corresponding outgoing interdune sediment discharge masses obtained by different outgoing interdune sediment discharge mass monitoring sediment traps, represents the total mass of the sediment-transporting material flowing into the interdune area,

[0076] In an example embodiment, the method for quantifying the interdune area wind erosion and deposition based on the changing wind direction ; wherein, represents the total mass of the sediment-transporting material flowing into the interdune area, represents the total mass of the sediment-transporting material flowing into the interdune area, represents the area of the interdune area.

[0077] The device of the embodiment can be used to execute the method of any one of the method side embodiments of the interdune area wind erosion and deposition quantification method based on the changing wind direction, and the specific implementation process and technical effects are similar to those of the method side embodiments of the interdune area wind erosion and deposition quantification method based on the changing wind direction. For details, refer to the detailed description in the method side embodiments of the interdune area wind erosion and deposition quantification method based on the changing wind direction, which will not be repeated here.

[0078] Figure 5 is a structural schematic diagram of an electronic device provided by the present application, as Figure 5 shown, the electronic device can include: a processor (processor) 510, a communications interface (communications interface) 520, a memory (memory) 530 and a communication bus 540, wherein the processor 510, the communication interface 520, the memory 530 complete the communication between each other through the communication bus 540. The processor 510 can call the logic instruction in the memory 530 to execute the interdune area wind erosion and deposition quantification method based on the changing wind direction, which includes: obtaining the area of the interdune area of the changing wind direction; wherein the area of the interdune area represents the area between the drainage divide of the interdune area of the changing wind direction and the interdune line of the interdune area of the changing wind direction; obtaining the mass of the sediment-transporting material and the sediment-transporting width of the interdune area of the changing wind direction; determining the total mass of the sediment-transporting material according to the mass of the sediment-transporting material and the sediment-transporting width; determining the interdune area wind erosion and deposition quantification of the interdune area of the changing wind direction according to the area of the interdune area and the total mass of the sediment-transporting material.

[0079] Furthermore, the logical instructions in the aforementioned memory 530 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0080] On the other hand, the present invention also provides a computer program product, which includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the method for quantitatively determining wind erosion and deposition in inter-gully areas based on changing wind direction provided by the above methods. The method includes: obtaining the area of ​​the inter-gully area of ​​the changing wind direction; wherein the area of ​​the inter-gully area represents the area between the watershed of the changing wind direction inter-gully area and the gully edge line of the changing wind direction inter-gully area; obtaining the sediment transport mass and sediment transport width of the changing wind direction inter-gully area; determining the total mass of sediment transport based on the sediment transport mass and sediment transport width; and determining the quantitative amount of wind erosion and deposition in the inter-gully area of ​​the changing wind direction based on the area of ​​the inter-gully area and the total mass of sediment transport.

[0081] In another aspect, the present invention also provides a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements a method for quantitatively determining wind erosion and deposition in inter-gully areas based on varying wind direction, as provided by the methods described above. This method includes: obtaining the area of ​​the inter-gully region in the varying wind direction; wherein the area of ​​the inter-gully region represents the area between the watershed of the varying wind direction inter-gully region and the gully edge line of the varying wind direction inter-gully region; obtaining the sediment transport mass and sediment transport width of the varying wind direction inter-gully region; determining the total sediment transport mass based on the sediment transport mass and sediment transport width; and determining the quantitative amount of wind erosion and deposition in the inter-gully region in the varying wind direction based on the area of ​​the inter-gully region and the total sediment transport mass.

[0082] The device embodiments described above are merely illustrative, wherein the units described as separate components can or can not be physically separate, and the components displayed as units can or can not be physical units, i.e., can be located in one place, or can be distributed to multiple network units. Part or all of the modules can be selected to achieve the purposes of the embodiments according to actual needs. Those skilled in the art can understand and implement without creative labor.

[0083] Through the description of the above embodiments, those skilled in the art can clearly understand that the embodiments can be realized by means of software and the necessary general hardware platform, and of course can also be realized by hardware. Based on such understanding, the above technical solutions can be embodied in the form of a software product, which can be stored in a computer readable storage medium, such as a ROM / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute the methods described in each embodiment or some parts of the embodiments.

[0084] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for quantitatively determining interdune wind erosion and deposition based on changing wind direction, characterized by, The method comprises: acquiring an interdune region area of the interdune area of the changing wind direction; wherein the interdune region area represents an area between a drainage divide of a drainage basin of the interdune area of the changing wind direction and a gully edge line of the interdune area of the changing wind direction; acquiring a sediment transport material quality and a sediment transport width of the interdune area of the changing wind direction; determining a total sediment transport material quality according to the sediment transport material quality and the sediment transport width; determining an interdune area wind erosion and deposition quantification of the interdune area of the changing wind direction according to the interdune region area and the total sediment transport material quality.

2. The method according to claim 1, wherein, The sediment transport material quality comprises an inflow interdune area sediment transport material quality and an outflow interdune area sediment transport material quality, and the sediment transport width comprises an inflow interdune area sediment transport width and an outflow interdune area sediment transport width. The acquiring of the sediment transport material quality and the sediment transport width of the interdune area of the changing wind direction comprises: acquiring the inflow interdune area sediment transport material quality according to an inflow sediment transport material quality monitoring sand collector and acquiring the outflow interdune area sediment transport material quality according to an outflow sediment transport material quality monitoring sand collector; wherein the inflow sediment transport material quality monitoring sand collector and the outflow sediment transport material quality monitoring sand collector are instruments for monitoring the sediment transport material quality, and the inflow sediment transport material quality monitoring sand collector and the outflow sediment transport material quality monitoring sand collector are arranged on the drainage divide and the gully edge line of the interdune area of the changing wind direction; acquiring the inflow interdune area sediment transport width according to an inflow interdune area width monitoring instrument and acquiring the outflow interdune area sediment transport width according to an outflow interdune area width monitoring instrument; wherein the inflow interdune area width monitoring instrument and the outflow interdune area width monitoring instrument are instruments for monitoring the sediment transport width, and the inflow interdune area width monitoring instrument and the outflow interdune area width monitoring instrument are arranged on the drainage divide and the gully edge line of the interdune area of the changing wind direction.

3. The method according to claim 2, wherein, The total sediment transport material quality comprises an inflow interdune area total sediment transport material quality and an outflow interdune area total sediment transport material quality; and the determining of the total sediment transport material quality according to the sediment transport material quality and the sediment transport width comprises: determining the inflow interdune area total sediment transport material quality according to the inflow interdune area sediment transport material quality and the inflow interdune area sediment transport width; determining the outflow interdune area total sediment transport material quality according to the outflow interdune area sediment transport material quality and the outflow interdune area sediment transport width.

4. The method according to claim 3, wherein, the total mass of sediment transported between the inflow ditches = ; wherein, and are different constant coefficients, and represent the corresponding mass of sediment transported between the inflow ditches acquired by different monitoring sediment traps, represents the width of the sediment transported between the inflow ditches.

5. The method according to claim 3, wherein, the total mass of sediment transported between the outflow ditches = ; wherein, and are different constant coefficients, and denote the corresponding mass of sediment transported between the outflow ditches, as obtained by different said outflow sediment mass monitoring traps, denotes the width of the sediment transported between the outflow ditches.

6. The method of claim 3, wherein, Quantification of interdune corridor erosion and accretion ; wherein, represents the total mass of incoming interdune corridor sediment transport material, represents the total mass of outgoing interdune corridor sediment transport material, represents the area of the interdune region.

7. An apparatus for quantitatively determining interdune wind erosion and deposition based on changing wind direction, characterized by, The method comprises: a first acquiring module configured to acquire an interdune region area of the interdune area of the changing wind direction; wherein the interdune region area represents an area between a drainage divide of a drainage basin of the interdune area of the changing wind direction and a gully edge line of the interdune area of the changing wind direction; a second acquiring module configured to acquire a sediment transport material quality and a sediment transport width of the interdune area of the changing wind direction; a quality determining module configured to determine a total sediment transport material quality according to the sediment transport material quality and the sediment transport width; a quantification determining module configured to determine an interdune area wind erosion and deposition quantification of the interdune area of the changing wind direction according to the interdune region area and the total sediment transport material quality.

8. An electronic device comprising a memory, a processor, and a computer program stored on the memory and running on the processor, characterized in that, The processor executes the computer program to implement the method for determining the interdune area wind erosion and deposition quantification of the changing wind direction according to any one of claims 1 to 6. 9.A non-transitory computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by a processor to implement the method for quantitatively determining interdune eolian deposits based on changing wind direction according to any one of claims 1 to 6.

10. A computer program product comprising a computer program, characterized in that, The computer program is executed by a processor to implement the method for quantitatively determining interdune eolian deposits based on changing wind direction according to any one of claims 1 to 6.

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