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Simulation test method for slope farmland side ditch soil and water conservation benefits

A technology of simulation experiment and sloping cultivated land, applied in soil material testing, material inspection products, etc., can solve the problems of water and soil conservation function and action mechanism, unclear influence and benefit of ditch, insufficient attention to theoretical research, etc.

Inactive Publication Date: 2019-04-12
GUIZHOU NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although side ditches have a long history of practical application, because their specifications and shapes are complex and diverse with slope conditions and types, farming systems, farming habits, and regional climates, insufficient attention has been paid to its theoretical research, and its water and soil conservation functions The mechanism of action and the impact and benefits of side ditches on the law of water and sediment transport on the slope are still unclear.

Method used

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  • Simulation test method for slope farmland side ditch soil and water conservation benefits
  • Simulation test method for slope farmland side ditch soil and water conservation benefits
  • Simulation test method for slope farmland side ditch soil and water conservation benefits

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A simulated test method for soil and water conservation benefits of side ditches on sloping cultivated land, comprising the following steps:

[0026] (1) Land selection: Select the slope cultivated land with a flat slope and a slope length of 10m as the experimental plot;

[0027] (2) Setting of rainfall area: Assemble 8 artificial rainfall machines on the selected test plot. The distance between the rain machines is 1.5m, and the rainfall height is 2.5m, which can provide a uniform rainfall area of ​​4.5×12m;

[0028] (3) Setting of the experimental plot:

[0029] a. On the test plot covered by the artificial rainfall machine, the experimental plot A9 and the experimental plot B8 are divided, and an observation activity area 10 is set between the experimental plot A9 and the experimental plot B8;

[0030] b. The experimental plot A9 has no slope side ditch, and the end of the slope is provided with a collecting tank 7 and a sampling point 6;

[0031] c. A sloping sid...

Embodiment 2

[0034] A simulated test method for soil and water conservation benefits of side ditches on sloping cultivated land, comprising the following steps:

[0035] (1) Land selection: select the sloping cultivated land with a flat slope and a slope length of 18m as the experimental plot;

[0036] (2) Setting of rainfall area: Assemble 8 artificial rainfall machines on the selected test plot. The distance between the rain machines is 1.5m, and the rainfall height is 2.5m, which can provide a uniform rainfall area of ​​4.5×12m;

[0037] (3) Setting of the experimental plot:

[0038] a. On the test plot covered by the artificial rainfall machine, the experimental plot A9 and the experimental plot B8 are divided, and an observation activity area 10 is set between the experimental plot A9 and the experimental plot B8;

[0039] b. The experimental plot A9 has no slope side ditch, and the end of the slope is provided with a collecting tank 7 and a sampling point 6;

[0040] c. A sloping s...

Embodiment 3

[0043] A simulated test method for soil and water conservation benefits of side ditches on sloping cultivated land, comprising the following steps:

[0044] (1) Land selection: Select the slope cultivated land with a flat slope and a slope length of 20m as the experimental plot;

[0045] (2) Setting of rainfall area: Assemble 8 artificial rainfall machines on the selected test plot. The distance between the rain machines is 1.5m, and the rainfall height is 2.5m, which can provide a uniform rainfall area of ​​4.5×12m;

[0046] (3) Setting of the experimental plot:

[0047] a. On the test plot covered by the artificial rainfall machine, the experimental plot A9 and the experimental plot B8 are divided, and an observation activity area 10 is set between the experimental plot A9 and the experimental plot B8;

[0048] b. The experimental plot A9 has no slope side ditch, and the end of the slope is provided with a collecting tank 7 and a sampling point 6;

[0049] c. A sloping sid...

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Abstract

The invention discloses a simulation test method for slope farmland side ditch soil and water conservation benefits. According to the method, two test areas A and B are set, raining is simulated in the two areas, a sedimentary form and a distribution characteristic of sand in slope farmland side ditch of the test area B are analyzed, and flow and sand content of the test areas A and B are analyzed, so as to research soil and water conservation benefits of the farmland side ditch. Nutrients, pollutants and soil particles of sand in the test areas A and B and the farmland side ditch are analyzed, so as to discuss soil and fertilizer retaining benefits of farmland side ditch on slope farmland and analyze contribution of migration of non-point surface pollution and farmland side ditch to reduction of pollutant migration.

Description

technical field [0001] The invention belongs to the technical field of soil erosion and water and soil conservation, and in particular relates to a simulation test method for water and soil conservation benefits of side ditches of sloping cultivated land. technical background [0002] The southern region has abundant rainfall, broken terrain, steep slopes, and severe soil erosion. The problem of controlling soil and water loss in sloping cultivated land has been widely concerned since ancient times. In the southern hilly areas with a farming history of thousands of years, especially the purple soil hilly areas, farmers creatively apply slope surface water system engineering measures to prevent and control soil and water loss, and use ditch sand to return land. Maintain soil strength. This measure has played an important role in slope protection and governance. In slope water system engineering, slope side ditches are the first line of defense against soil erosion on slopes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 雷丽王济傅斌蔡雄飞周国富胡丰青严坤
Owner GUIZHOU NORMAL UNIVERSITY