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Method for controlling water and soil loss of watershed by adjusting runoff of slope surface

A technology for slope runoff and watershed, applied in chemical instruments and methods, excavation, water supply devices, etc., can solve the problems of poor slope stability, failure to comprehensively consider supporting measures such as retaining, storage, and drainage, and enhance slope stability. performance, solve the problem of slope water sources, and improve productivity

Inactive Publication Date: 2020-03-06
HEILONGJIANG PROVINCIAL HYDRAULIC RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem that in the existing comprehensive control of slope surface water and soil loss, only the slope surface engineering is often considered, and the design of supporting barriers, storage, and drainage measures is not comprehensively considered, resulting in the violent erosion of the field surface by the incoming water on the slope surface. To solve the technical problem of poor slope stability, and provide a method to control water and soil erosion in the watershed by regulating slope runoff

Method used

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  • Method for controlling water and soil loss of watershed by adjusting runoff of slope surface

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specific Embodiment approach 1

[0017] Specific implementation mode 1: This implementation mode is a method for controlling water and soil loss in a watershed by regulating slope runoff, specifically carried out according to the following steps:

[0018] A plurality of field ridges are evenly arranged on the slope from upstream to downstream, and a drainage groove is arranged in parallel next to the field ridge at the downstream of each field ridge; a drainage ditch is dug downward on the ground at a side edge of the slope, and the The drainage ditch is arranged along the slope from upstream to downstream, and the drainage ditch is parallel to the direction along the slope; a grit chamber is dug downward at the bottom of the drainage ditch, and a grit chamber is set up 3 to 5 ridges apart; Downstream and set the first water outlet and the first water inlet on the side wall of the drainage ditch away from the field ridge, and set a layer of filter screen at the first water outlet; dig a reservoir on the ground...

specific Embodiment approach 2

[0019] Embodiment 2: This embodiment is different from Embodiment 1 in that: a 15cm-20cm thick sand cushion is laid on the bottom surface of the drainage ditch, and then a U-shaped groove made of glass fiber reinforced plastic is placed. Others are the same as the first embodiment.

specific Embodiment approach 3

[0020] Embodiment 3: This embodiment is different from Embodiment 1 or Embodiment 2 in that: the width of the drainage ditch is 30cm-35cm, and the depth of the drainage ditch is 30cm-35cm. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a method for controlling water and soil loss of a watershed by adjusting the runoff of a slope surface, and relates to a method for controlling water and soil loss of a watershed. According to the method, the technical problems that in the existing design of the slope surface water and soil loss comprehensive treatment, only the slope surface engineering is considered, thefield surface is violently flushed by the water from the slope surface, and the slope surface stability is poor are solved. The method is combined with a field road to construct a drainage system of the watershed; and water storage facilities are arranged along the line of the drainage system, and a flooding system of a water storage tank is a lower-section drainage ditch. According to the method,ridges are arranged on the slope surface to block the runoff of the slope surface, then the runoff is guided into drainage grooves, the slope water is gathered into the drainage ditch through the drainage grooves, and thus the runoff is avoided on the slope surface in the longitudinal direction. The drainage structure can be used for timely and effectively dredging the water from the slope surface, flushing on the field surface by the water from the slope surface is sufficiently reduced, and the slope surface stability is enhanced; and the water storage tank can change the water from the slope surface into wealth, rainwater is blocked and flushing is reduced, and meanwhile, the rainwater can be stored for use during irrigation and pesticide spraying of the field crops.

Description

technical field [0001] The invention relates to a method for controlling water and soil loss in a watershed. Background technique [0002] Soil erosion is one of the major disasters in the world. It destroys land resources, causes productivity decline, consumes limited water resources, causes droughts, floods and other disasters, causes deterioration of the ecological environment, and seriously threatens human survival and development. It has become a common concern in all countries. The problem. The Northeast Black Soil Region is the most important grain producing area and the largest commercial grain base in my country, responsible for more than 50% of the grain demand of the urban population in China. Along with the continuous development of social economy and the increasing activities of human production and living, the region has also experienced serious degradation of black soil, especially water and soil erosion, which has exacerbated soil degradation, damaged farmla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/20E03F3/04E03F5/10E03F5/14G01M10/00
CPCE02D17/20E03F3/046E03F5/10E03F5/14G01M10/00Y02A10/30
Inventor 陈生永李文超鞠敏睿刘建新李文影魏琳侯淑艳李超史彦林刘昊华赵艺步玉双
Owner HEILONGJIANG PROVINCIAL HYDRAULIC RES INST
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