CN110036878B - Ditch and slope land water collection and irrigation system in loess plateau area and construction method thereof - Google Patents
Ditch and slope land water collection and irrigation system in loess plateau area and construction method thereof Download PDFInfo
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- CN110036878B CN110036878B CN201910318489.XA CN201910318489A CN110036878B CN 110036878 B CN110036878 B CN 110036878B CN 201910318489 A CN201910318489 A CN 201910318489A CN 110036878 B CN110036878 B CN 110036878B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
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Abstract
The invention relates to a land reclamation method, in particular to a ditch slope land water collection and irrigation system in a loess plateau area; the technical problems that water and soil loss is caused by rainfall in summer and autumn in the trench slope land of the tableland area of the loess table, the field and the ridge are prone to collapse, irrigation water source requirements cannot be met in winter and spring, and accordingly land productivity is reduced are solved. The technical solution of the invention is as follows: the utility model provides a ditch sloping field irrigation system that catchments in loess platform tableland area, its special character lies in: comprises a terrace water collecting unit and a drainage and irrigation system; the terrace water collecting unit comprises a plurality of terrace blocks which are arranged in a stepped manner; the field block comprises a ridge and a field surface; the ridge is arranged on one side of the field surface, which is far away from the field block at the previous stage; the middle part of the ridge is provided with a drainage ditch which divides the ridge into an inner ridge and an outer ridge; a plurality of permeation holes communicating the field surface and the drainage ditch are formed at the bottom of the inner ridge; one side of the field surface close to the ridge is lower than one side far away from the ridge; the invention also provides a construction method of the ditch slope land water-collecting irrigation system in the loess platform region.
Description
Technical Field
The invention relates to a land reclamation method, in particular to a ditch and slope land water collection and irrigation system in a loess plateau area and a construction method thereof.
Background
The loess plateau is a loess table top which is covered by loess on a valley terrace and is distributed along the valley in a growing strip shape, and the loess table top is generally inclined towards the valley. The ditch slope land is the main cultivated land type in loess platform tableland area, and soil remediation is the important measure of stabilizing the cultivated land area in this area, promoting cultivated land quality, increasing grain yield, alleviating the human spear shield. The precipitation spatial distribution in the loess plateau area is uneven, rain is less in winter and spring, rain is more in summer and autumn, and rainstorm falls more in summer and autumn, so that water and soil loss often occurs in summer and autumn, the field ridge is unstable and collapses, the water and soil loss is serious, crops are always irrigated without water in winter and spring, and the method becomes a main limiting factor for land utilization and agricultural production in the area. The key of the regional land improvement lies in perfecting an irrigation and drainage system, solving the problems of difficult irrigation and unstable and collapsed field ridges, and achieving 'drought irrigation, waterlogging drainage, drought waterlogging conservation and high harvest'.
Disclosure of Invention
The invention provides a ditch and slope land water collection and irrigation system in a loess platform tableland area and a construction method thereof, and aims to solve the technical problems that water and soil loss is caused by rainfall in the ditch and slope land in the loess platform tableland area in summer and autumn, fields and sills are easy to collapse, and land productivity is reduced because irrigation water source requirements cannot be met in winter and spring.
The technical solution of the invention is as follows:
the utility model provides a ditch sloping field irrigation system that catchments in loess platform tableland area, its special character lies in:
comprises a terrace water collecting unit and a drainage and irrigation system;
the terrace water collecting unit comprises a plurality of terrace blocks which are arranged in a stepped manner;
the field block comprises a ridge and a field surface; the ridge is arranged on one side of the field surface, which is far away from the field block at the previous stage; the middle part of the ridge is provided with a drainage ditch which divides the ridge into an inner ridge and an outer ridge; the bottom of the inner ridge is provided with a plurality of permeation holes communicating the field surface and the drainage ditch; the bottom surface of the drainage ditch is a slope; one side of the field surface close to the ridge is lower than one side of the field surface far away from the ridge;
the drainage and irrigation system comprises an adjusting tank arranged on one side of the highest field piece, a collecting tank arranged on one side of the lowest field piece, a water conduit communicated with the adjusting tank and the collecting tank, a water collecting pipe communicated with a drainage ditch and the water conduit, a water outlet pile vertically buried in the field piece, a water delivery pipe arranged between the water conduit and the water outlet pile, an adjusting tank valve arranged at the opening part of the adjusting tank, a first valve arranged at the opening part of the collecting tank, a water collecting pipe valve arranged on the water collecting pipe and a water delivery pipe valve arranged on the water delivery pipe; and a water pump is arranged in the water collecting tank.
The drainage and irrigation system is arranged on the lower side of the bottom surface of the drainage ditch.
Further, in order to clean the sludge and prevent the water pump from being blocked, the drainage and irrigation system also comprises a sedimentation tank; the inlet of the sedimentation tank is connected with a water conduit through a first valve and a connecting pipe, and the outlet of the sedimentation tank is communicated with a water collecting tank; a water collecting tank valve is arranged between the sedimentation tank and the water collecting tank; the first valve is a two-position three-way reversing valve.
Further, the terraced fields water collecting units can be multiple in number, and the drainage and irrigation system is located between the two levels of terraced fields water collecting units.
Further, the gradient of the field surface is 1/1000-1/800.
Further, this loess platform tableland area ditch slope ground irrigation system that catchments still includes and sets up the spillway gap at interior ridge top.
Furthermore, the inner ridge and the outer ridge are both trapezoidal with the lower width of 0.5m, the upper width of 0.3m and the height of 0.4 m.
Furthermore, the aperture of each penetration hole is 0.35m, the distance between every two adjacent penetration holes is 1m, and coarse sand is filled in the penetration holes.
The invention also provides a construction method of the trench slope land water-collecting irrigation system in the loess platform region, which is characterized by comprising the following steps of:
1) flattening the field surface;
leveling the field surface of each leveling unit by taking each field block as a leveling unit, wherein the side of the field surface close to the ridge is lower than the side far away from the ridge;
2) building ridges;
3) building a drainage ditch;
3.1) digging a drainage ditch in the middle of the ridge, wherein the bottom surface of the drainage ditch is a slope surface, and the bottom surface of the drainage ditch is ensured to be lower than the field surface; the drainage ditch divides the ridge into an inner ridge and an outer ridge;
3.2) reinforcing the bottom of the drainage ditch;
3.3) drilling a penetration hole at the bottom of the inner ridge, wherein the penetration hole communicates the field surface with a drainage ditch;
4) installing a drainage and irrigation system; the drainage and irrigation system is arranged on the lower side of the bottom surface of the drainage ditch;
4.1) building an adjusting tank at the lower side of the bottom surface of the highest-level field block drainage ditch, and arranging an adjusting tank valve at the opening part of the adjusting tank;
4.2) building a water collecting tank at the lower side of the bottom surface of the lowest stage of field block drainage ditch, and installing a water pump in the water collecting tank; the opening part of the water collecting tank is provided with a two-position first valve;
4.3) installing a water conduit between the adjusting tank and the water collecting tank, wherein the water conduit is obliquely arranged;
4.4) installing a water collecting pipe at the opening part of the drainage ditch, and installing a water collecting pipe valve between the water collecting pipe and the water diversion pipe; then filling the periphery of the water collecting pipe with cement;
4.5) burying the water conveying pipe into the corresponding field block, wherein the water conveying pipe is arranged along the left and right directions of the field block, and the burying depth of the water conveying pipe is 0.3 m; then a water delivery pipe valve is arranged between the water delivery pipe and the water diversion pipe;
4.6) vertically burying the water outlet piles into the corresponding field, wherein the inlets of the water outlet piles are connected with water delivery pipes, and the outlets of the water outlet piles extend out of the field.
Further, the step 3) further comprises:
3.4) filling coarse sand in the penetration hole;
3.5) arranging an overflow port at the top of the inner ridge;
further, the gradient of the field surface in the step 1) is 1/1000-1/800.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention has low construction cost, can drain redundant accumulated water on the field surface in waterlogging seasons by constructing the double ridges and digging the penetration holes in the inner ridges, can construct drainage ditches between the ridges, can collect the rainwater in the waterlogging seasons to the maximum extent for irrigation in dry seasons by the drainage and irrigation system, and realizes 'drought irrigation and waterlogging energy drainage'.
2. The double ridges can effectively intercept runoff, lead rainwater into the drainage ditch, prevent soil and water loss caused by rainfall and protect the side slope of the field ridge.
3. The construction of the double ridges widens the safe distance at the edges of the field, and can also effectively prevent the occurrence of safety accidents of agricultural machinery.
4. The ridges of the inner ridge and the outer ridge of the invention are used for sowing grass seeds, which can effectively prevent wind erosion on the surface of the field, increase the economic income, and have the function of anchoring the side slope by the plant root system.
Drawings
FIG. 1 is a schematic view of an irrigation and drainage system in accordance with an embodiment of the invention;
FIG. 2 is a schematic view of a ridge in this embodiment;
FIG. 3 is a view showing the installation positions of the water collecting pipe and the water conveying pipe in the irrigation and drainage system according to this embodiment;
the reference signs are:
1-terrace water collecting unit, 101-field block, 1011-ridge, 10111-inner ridge, 10112-outer ridge, 1012-field surface, 1013-drainage ditch, 1014-permeation hole, 1016-overflow port, 2-irrigation and drainage system, 201-adjusting tank, 202-water collecting tank, 2021-water pump, 203-water conduit, 204-water collecting pipe, 205-water conduit, 206-adjusting tank valve, 207-first valve, 208-water collecting pipe valve, 209-water conduit valve, 210-water outlet pile, 211-sedimentation tank, 212-water collecting tank valve and 213-connecting pipe.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
Referring to fig. 1, 2 and 3, the water collecting and irrigating system for the trench slope land of the loess plateau area comprises a terrace water collecting unit 1 and a drainage and irrigating system 2.
The terrace water collecting unit 1 comprises a plurality of terrace blocks 101 which are arranged in a stepped manner; piece 101 includes ridge 1011 and field surface 1012. Ridge 1011 is located on the side of field surface 1012 away from the upper field block. The middle part of the ridge 1011 is provided with a drainage ditch 1013, and the bottom of the drainage ditch 1013 is 0.1m lower than the bottom of the ridge. The drainage ditch 1013 divides the ridge 1011 into an inner ridge 10111 and an outer ridge 10112; the bottom of the inner ridge 10111 is provided with a plurality of penetration holes 1014 communicating the field surface 1012 with the drainage ditches 1013; the aperture of the penetration hole is 0.35m, and the distance between two adjacent penetration holes is 1 m. The bottom surface of escape canal 1013 is domatic, and its slope is 1 ~ 3. The top of the inner ridge 10111 is provided with an overflow port 1016. The inner ridge 10111 and the outer ridge 10112 are both trapezoids with a lower width of 0.5m, an upper width of 0.3m and a height of 0.4 m.
The side of the field 1012 near the ridge 1011 is lower than the side away from the ridge 1011.
The drainage and irrigation system 2 comprises an adjusting tank 201 arranged on one side of the highest field piece 101, a collecting tank 202 and a sedimentation tank 211 arranged on one side of the lowest field piece 101, a water conduit 203 communicated with the adjusting tank 201 and the collecting tank 202, a water conduit 204 communicated with a drainage ditch 1013 and the water conduit 203, a water outlet pile 210 vertically buried in the field piece 101, a water delivery pipe 205 arranged between the water conduit 203 and the water outlet pile 210, an adjusting tank valve 206 arranged at the opening part of the adjusting tank 201, a two-position three-way reversing valve 207 and a connecting pipe 213 arranged at the outlet of the collecting tank 202 and the inlet of the sedimentation tank 211, a collecting tank valve 212 with one end connected with the outlet of the sedimentation tank 211 and the other end connected with the inlet of the collecting tank 202, a collecting pipe valve 208 arranged on the water conduit 204 and a water delivery pipe valve 209 arranged on the water delivery pipe 205.
A water pump 2021 is arranged in the water collecting tank 202. The water collecting pipe 204 is 0.05m higher than the bottom of the drainage ditch 1013. The water pipe 205 is buried to a depth of 0.3 m. The water outlet pile 210 is vertically buried in the field block 101, and the inlet of the water outlet pile 210 is positioned at the lower part and connected with the water collecting pipe 204; the outlet of the water outlet pile 210 is connected with an elbow which extends out of the field surface 1012. The diameter of all tubes in this example is 0.1 m.
The drainage and irrigation system 2 is provided on the lower side of the bottom surface of the drainage ditch 1013.
The number of the terrace water collecting units 1 can be multiple; the number of the terrace water collecting units 1 in the embodiment is two, two terrace water collecting units 1 share one drainage and irrigation system 2, and the drainage and irrigation system 2 is positioned between the two terrace water collecting units 1.
Referring to fig. 1, 2 and 3, the method for constructing a water collecting and irrigating system for a trench slope land of a loess plateau region includes the following steps:
1) flattening the field surface 1012;
each field block 101 is taken as a leveling unit, and the surface 1012 of each leveling unit is leveled, so that the side of the surface 1012 close to the ridge 1011 is lower than the side far away from the ridge 1011, and the slope is 1/800-1/1000. Since the clear width of the field 1012 is sufficient to ensure the mechanical cultivation, the width of the field 1012 is controlled to be about 10m and the length of the field 1012 is controlled to be about 200m in this embodiment. The size of the field ridge in each field block 101 is required to ensure that the field ridge is firm and stable and the land is used to the maximum extent, and the height of the field ridge is determined according to the ground gradient, the soil texture, the mechanical conditions, the utilization condition and other factors;
2) building a ridge 1011:
building ridges 1011 by using the raw soil which is stripped in the step 1) and does not contain impurities, and tamping in layers, wherein the compaction degree is more than 90%; the ridge 1011 occupies 10% of the land and the field surface 1012 occupies 90%.
3) Building a drainage ditch 1013;
3.1) digging the drainage ditch 1013
The gutters 1013 follow the trend of large curves, small curves are straight, special attention is paid to the change of the slope, the depressions are filled manually or mechanically, and the raised parts are excavated. The drainage ditch 1013 is positioned in the middle of the ridge 1011, and the bottom of the drainage ditch 1013 is 0.1m lower than the height of the field 1012. The bottom surface of escape canal 1013 is domatic, and its slope is 1 ~ 3. The drainage ditch 1013 divides the ridge 1011 into an inner ridge 10111 and an outer ridge 10112. The inner ridge 10111 and the outer ridge 10112 are both trapezoids with the lower width of 0.5m, the upper width of 0.3m and the height of 0.4 m;
3.2) mechanically reinforcing the bottom of the drainage ditch 1013 to ensure smooth drainage;
3.3) drilling penetration holes 1014 at the bottom of the inner ridge 10111, wherein the penetration holes 1014 communicate the field surface 1012 with drainage ditches 1013; the pore diameter of each penetration hole 1014 is 0.35m, and the distance between every two adjacent penetration holes 1014 is 1 m;
3.4) filling coarse sand in the penetration holes 1014;
3.5) arranging a spillway 1016 on the top of the inner ridge 10111; when strong rains occur, surface runoff flows over the overflow port 1016 and flows into the drainage ditch 1013.
4) Installing a drainage and irrigation system 2; the drainage and irrigation system 2 is positioned at the lower side of the bottom surface of the drainage ditch 1013;
4.1) building an adjusting tank 201 on the slope bottom side of the highest-level field block close to the drainage ditch 1013, wherein an opening part of the adjusting tank 201 is provided with an adjusting tank valve 206;
4.2) building a water collecting tank 202 and a sedimentation tank 211 at one side of the lowest stage field block close to the slope bottom of the drainage ditch 1013, and arranging a water pump 2021 in the water collecting tank 202;
4.3) installing a water conduit 203 between the adjusting tank 201 and the water collecting tank 202, wherein the water conduit 203 is obliquely arranged; a first valve 207 is arranged at the inlet of the sedimentation tank 211 and the outlet of the water collecting tank 202; a collecting tank valve 212 is arranged at the inlet of the collecting tank 202; the first valve 207 in this embodiment is a two-position three-way reversing valve, and has three ports, the first port is connected with the water conduit 203, the second port is connected with the sedimentation tank 211 through the connecting pipe 213, and the third port is connected with the water collecting tank 202;
4.4) installing a water collecting pipe 204 at the opening part of the drainage ditch 1013, wherein the water collecting pipe 204 is 0.05m higher than the bottom part of the drainage ditch 1013; a water collecting pipe valve 208 is arranged between the water collecting pipe 204 and the water conduit 203, and then the periphery of the water collecting pipe 204 is filled with cement;
4.5) burying the water conveying pipe 205 into the corresponding field block 101, wherein the water conveying pipe 205 is arranged along the length direction of the field block, and the burying depth of the water conveying pipe 205 is 0.3 m; a water pipe valve 209 is arranged between the water pipe 205 and the water conduit 203;
4.6) vertically burying the water outlet piles 210 into the corresponding field blocks 101, wherein the inlet of the water outlet pile 210 is connected with the water conveying pipe 205, and the outlet of the water outlet pile extends out of the field blocks 101.
5) Grass seeds are sown on the ridges of the inner ridge 10111 and the outer ridge 10112, so that the wind erosion of the earth surface can be effectively prevented, the economic income can be increased, and the plant root system can play a role in anchoring the side slope.
During flow collection, one way of the first valve 207 communicated with the sedimentation tank 211 and the water collecting pipe valve 208 are in an open state, and other valves are in a closed state. Runoff formed by rainfall enters a drainage ditch 1013 through a permeation hole 1014, when the water level is higher than the opening part of a water collecting pipe 204, the runoff flows into the sedimentation tank 211 through the water collecting pipe 204 and a water guiding pipe 203 to be precipitated, when the sedimentation tank 211 is full of water, a water collecting pipe valve 208 and a first valve 207 are closed, after rainwater in the sedimentation tank 211 is precipitated, a water collecting tank valve 212 is opened, clean water on the upper part of the sedimentation tank 211 enters the water collecting tank 202, and after the water collecting tank 202 is full of water, the water collecting tank valve 212 is closed. Opening one way of the first valve 207 communicated with the collecting tank 202 and the regulating tank valve 206, pumping the water in the collecting tank 202 into the regulating tank 201 through the water conduit 203 by using the water pump 2021, and closing the regulating tank valve 206 and the first valve 207 after the regulating tank 201 is full.
During irrigation, the regulating pool valve 206 and a water delivery pipe valve 209 for irrigating the field blocks are opened, and water is delivered to the water outlet piles 210 of each field block through the water conduit pipe 203 and the water delivery pipe 205 to carry out self-flowing irrigation.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a ditch sloping field irrigation system that catchments in loess platform tableland area, its characterized in that:
comprises a terrace water collecting unit (1) and a drainage and irrigation system (2);
the terrace water collecting unit (1) comprises a plurality of terrace blocks (101) which are arranged in a stepped manner;
the field block (101) comprises ridges (1011) and a field surface (1012); the ridge (1011) is arranged on one side of the field surface (1012) far away from the field block at the previous stage; a drainage ditch (1013) is arranged in the middle of the ridge (1011), and the ridge (1011) is divided into an inner ridge (10111) and an outer ridge (10112) by the drainage ditch (1013); the bottom of the inner ridge (10111) is provided with a plurality of permeation holes (1014) which are communicated with the field surface (1012) and the drainage ditch (1013); the bottom surface of the drainage ditch (1013) is a slope; one side of the field surface (1012) close to the ridge (1011) is lower than one side of the field surface far away from the ridge (1011);
the drainage and irrigation system (2) comprises an adjusting tank (201) arranged on one side of the highest-level field block, a water collecting tank (202) arranged on one side of the lowest-level field block, a water guide pipe (203) communicated with the adjusting tank (201) and the water collecting tank (202), a water collecting pipe (204) communicated with a drainage ditch (1013) and the water guide pipe (203), a water outlet pile (210) vertically buried in the field block (101), a water delivery pipe (205) arranged between the water guide pipe (203) and the water outlet pile (210), an adjusting tank valve (206) arranged at the opening part of the adjusting tank (201), a first valve (207) arranged at the opening part of the water collecting tank (202), a water collecting pipe valve (208) arranged on the water collecting pipe (204) and a water delivery pipe valve (209) arranged on the water delivery pipe (205); a water pump (2021) is arranged in the water collecting tank (202);
the drainage and irrigation system (2) is arranged on the lower side of the bottom surface of the drainage ditch (1013).
2. The trench slope land water-collection irrigation system for loess platform tablelands according to claim 1, wherein: the drainage and irrigation system (2) also comprises a sedimentation tank (211); the inlet of the sedimentation tank (211) is connected with the water conduit (203) through a first valve (207) and a connecting pipe (213), and the outlet of the sedimentation tank (211) is communicated with the water collecting tank (202); a collecting tank valve (212) is arranged between the sedimentation tank (211) and the collecting tank (202); the first valve (207) is a two-position three-way reversing valve.
3. The loess tableland area trench slope land irrigation system according to claim 1 or 2, wherein: the terraced fields water collection unit (1) quantity is a plurality of, drainage and irrigation system (2) are located between two-stage terraced fields water collection unit (1).
4. The loess plateau area trench slope land irrigation system of claim 3, wherein: the gradient of the field surface (1012) is 1/1000-1/800.
5. The loess plateau area trench slope land irrigation system of claim 4, wherein: and the water overflowing port (1016) is arranged at the top of the inner ridge (10111).
6. The loess plateau area trench slope land irrigation system of claim 5, wherein: the inner ridge (10111) and the outer ridge (10112) are both trapezoids with the lower width of 0.5m, the upper width of 0.3m and the height of 0.4 m.
7. The trench slope land water-collection irrigation system for loess platform tablelands according to claim 6, wherein: the pore diameter of the penetration hole (1014) is 0.35m, and the distance between two adjacent penetration holes is 1 m; the penetration holes (1014) are filled with coarse sand.
8. A construction method of a ditch and slope land water collection irrigation system in a loess plateau area is characterized by comprising the following steps of:
1) flattening the field surface (1012);
leveling the field surface (1012) of each leveling unit by taking each field block (101) as one leveling unit, wherein the side of the field surface (1012) close to the ridge (1011) is lower than the side far away from the ridge (1011);
2) building a ridge (1011);
3) building a drainage ditch (1013);
3.1) digging a drainage ditch (1013) in the middle of the ridge (1011), wherein the bottom surface of the drainage ditch (1013) is a slope surface, and the bottom surface of the drainage ditch (1013) is ensured to be lower than the field surface (1012); the drainage ditch (1013) divides the ridge (1011) into an inner ridge (10111) and an outer ridge (10112);
3.2) reinforcing the bottom of the drainage ditch (1013);
3.3) drilling penetration holes (1014) at the bottom of the inner ridge (10111), wherein the penetration holes (1014) communicate the field surface (1012) with drainage ditches (1013);
4) installing a drainage and irrigation system (2); the drainage and irrigation system (2) is arranged on the lower side of the bottom surface of the drainage ditch;
4.1) building an adjusting tank (201) at the lower side of the bottom surface of the highest-level field block drainage ditch, and arranging an adjusting tank valve (206) at the opening part of the adjusting tank (201);
4.2) building a water collecting tank (202) at the lower side of the bottom surface of the lowest stage of the field block drainage ditch, and installing a water pump (2021) in the water collecting tank (202); a first valve (207) is arranged at the opening part of the water collecting tank (202);
4.3) installing a water conduit (203) between the adjusting tank (201) and the water collecting tank (202), wherein the water conduit (203) is obliquely arranged;
4.4) installing a water collecting pipe (204) at the opening part of the drainage ditch (1013), and installing a water collecting pipe valve (208) between the water collecting pipe (204) and the water conduit (203); then the periphery of the water collecting pipe (204) is filled with cement;
4.5) burying the water pipe (205) into the corresponding field block (101), wherein the water pipe (205) is arranged along the left and right directions of the field block, and the burying depth of the water pipe (205) is 0.3 m; then a water delivery pipe valve (209) is arranged between the water delivery pipe (205) and the water diversion pipe (203);
4.6) vertically burying the water outlet piles (210) into the corresponding field blocks (101), wherein the inlets of the water outlet piles (210) are connected with the water conveying pipes (205), and the outlets of the water outlet piles extend out of the field blocks (101).
9. The method for constructing a trench slope land water-collecting irrigation system of a loess plateau area according to claim 8, wherein: the step 3) further comprises the following steps:
3.4) filling coarse sand in the penetration hole (1014);
3.5) arranging an overflow port (1016) at the top of the inner ridge (10111).
10. The method for constructing a trench slope land water-collecting irrigation system of a loess plateau area according to claim 9, wherein: the gradient of the field surface (1012) in the step 1) is 1/1000-1/800.
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| CN110036878B true CN110036878B (en) | 2021-07-20 |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1717025A1 (en) * | 1990-05-30 | 1992-03-07 | Туркменский сельскохозяйственный институт им.М.И.Калинина | Device for subsurface irrigation |
| CN203814311U (en) * | 2014-05-18 | 2014-09-10 | 云南农业大学 | Terrace rainwater collection irrigation system |
| CN204217594U (en) * | 2014-11-17 | 2015-03-25 | 山西农业大学 | A kind of terraced fields rain irrigation system |
| CN105359933B (en) * | 2015-10-28 | 2018-11-02 | 中国地质大学（武汉） | A kind of environmental irrigation system that terraced fields nutrition efficient utilizes |
| CN205348274U (en) * | 2016-01-29 | 2016-06-29 | 中乔大三农智慧农业（北京）有限公司 | Cyclic utilization system is collected to rich selenium terraced fields rainwater |
| CN205848212U (en) * | 2016-08-14 | 2017-01-04 | 孟治江 | A kind of Water saving type watering arrangement being applicable to hillside fields |
| CN206873419U (en) * | 2017-06-29 | 2018-01-12 | 马龙县水务局 | A kind of draining water storage system of gradient optimiziation |
| CN207639118U (en) * | 2017-08-08 | 2018-07-24 | 陕西地建土地工程技术研究院有限责任公司 | A kind of terraced fields ridge |
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