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Wide-width intercepting ditch for slope of hilly grassland

A water-intercepting ditch and wide-width technology, applied in the field of intercepting ditches, can solve the problems of increasing the labor burden of herdsmen, ignoring the production function of grassland, affecting the use of animal husbandry machinery, etc., so as to reduce soil loss and aggravate the Effects of soil loss

Pending Publication Date: 2018-07-06
INST OF WATER RESOURCES FOR PASTERAL AREA MINIST OF WATER RESOURCES P R C
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, in some control projects of grassland water and soil conservation and vegetation restoration, there is a lack of analysis of the characteristics of grassland small watersheds, and the control measures often follow and apply the control methods of large rivers
Especially in the engineering measures used for slope improvement in hilly grassland areas, when horizontal ditches and fish scale pits are arranged, on the one hand, it is easy to ignore the thin soil layer of the grassland, and the configuration of engineering measures should not disturb the original soil and vegetation on the slope in a large area. Conditions, on the other hand, also ignore the production function of grassland in local animal husbandry production, seriously affect the use of animal husbandry machinery, and increase the labor burden of herders

Method used

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  • Wide-width intercepting ditch for slope of hilly grassland
  • Wide-width intercepting ditch for slope of hilly grassland
  • Wide-width intercepting ditch for slope of hilly grassland

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Such as figure 1 As shown, in this embodiment, a wide-width intercepting ditch for hilly grassland slopes includes an intercepting ditch 2 arranged on the hilly slope 1 and an intercepting ditch 2 arranged on the hilly slope 1 and located at the intercepting ditch 2 Below the ridge 3, an isolation structure 4 for isolating soil and vegetation is arranged above the intercepting ditch 2. The isolation structure 4 adopts one or more of isolation nets and isolation fences.

[0034] The vegetation on the hilly grassland is mainly pasture grass, and the grass root system has poor grip on the soil. When it rains, the surface soil of the hilly grassland is easy to be lost under the action of rainwater.

[0035] Utilizing the intercepting ditch 2 can cut off the water flow, reduce the impact force of the water flow on the soil and reduce the soil taken away by the water flow, thereby reducing soil loss. According to specific needs, the water intercepting ditches 2 are arranged...

Embodiment 2

[0041] On the basis of the above embodiments, in this embodiment, the isolation structures 4 are arranged in multiple rows and arranged parallel to each other. The multiple rows of isolation structures 4 are arranged at intervals on the hilly slope, and the isolation structures 4 can be used to act as tight nails to reinforce the surface soil of the hilly slope, thereby reducing the influence of water flow on the soil. And the blocking effect of the isolation structure 4 can be enhanced by using the multi-row structure, thereby further reducing soil loss. In this embodiment, other contents not described are the same as those in the foregoing embodiments, so details are not repeated.

Embodiment 3

[0043] Such as figure 2 As shown, on the basis of the above-mentioned embodiments, in this embodiment, the side of the intercepting ditch 2 close to the top of the slope communicates with several water guide pipes 5 extending into the interior of the hill and sloping upwards.

[0044] When it rains, the rainwater will first infiltrate into the soil. When the soil is saturated with water, the excess rainwater can no longer enter the soil, so it will flow from the soil surface to the lower part. The intercepting ditch 2 can only intercept the water flow on the soil surface, but cannot process the excess moisture inside the soil. Utilizing the aqueduct 5 can introduce part of the water inside the soil into the water intercepting ditch 2, which is beneficial to improve the efficiency of dredging the water flow, and prevent excessive water accumulation in the soil from affecting the respiration of the vegetation root system. In this embodiment, other contents not described are th...

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Abstract

Disclosed is a wide-width intercepting ditch for a slope of a hilly grassland. The intercepting ditch comprises an intercepting ditch body arranged on a hilly oblique slope and a ridge which is arranged on the hilly oblique slope and located below the intercepting ditch body, and a separation structure is arranged above the intercepting ditch body; one or more of an isolation net or isolation fence is adopted by the isolation structure. The wide-width intercepting ditch has the advantages that a water flow intercepting effect is achieved by using the intercepting ditch body to prevent the strengthening of a water flow due to the fact that rainwater is aggregated from top to bottom resulting in the enhancing of soil loss during precipitation, the effect of reinforcement of a soil structureon the upper layer of the hilly oblique slope can be achieved by the intercepting ditch body to reduce the soil amount flushed by the water flow when the water flow flows downwards, and by arranging the isolation structure, a blocking effect is achieved during the precipitation to reduce the loss of the soil.

Description

technical field [0001] The invention relates to the field of intercepting ditches, in particular to a wide-width intercepting ditch used on hilly grassland slopes. Background technique [0002] In recent years, in some control projects of grassland water and soil conservation and vegetation restoration, there is a lack of analysis of the characteristics of small grassland watersheds, and the control measures often follow and apply the control methods of large rivers. Especially in the engineering measures used for slope improvement in hilly grassland areas, when horizontal ditches and fish scale pits are arranged, on the one hand, it is easy to ignore the thin soil layer of the grassland, and the configuration of engineering measures should not disturb the original soil and vegetation on the slope in a large area. Conditions, on the other hand, also ignore the production function of grassland in local animal husbandry production, seriously affect the use of animal husbandry ...

Claims

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Application Information

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IPC IPC(8): E03F5/00E03F5/04E03F5/10
CPCE03F5/00E03F5/04E03F5/10Y02A30/60
Inventor 刘艳萍梁占岐何京丽荣浩邢恩德
Owner INST OF WATER RESOURCES FOR PASTERAL AREA MINIST OF WATER RESOURCES P R C