Ditch slope soil fixation and water retention method for farmland soil erosion ditch

A soil erosion and erosion ditch technology, applied in soil protection, construction, infrastructure engineering, etc., can solve the problems of occupying farmland and reducing the area of ​​farmers' cultivated land, and achieve the effects of increasing water permeability, avoiding erosion, and increasing economic benefits

Inactive Publication Date: 2019-05-14
SHENYANG UNIV
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  • Summary
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in some hilly areas, both sides of the slope of the erosion ditch are farmland, and measures such as horizontal grooves and fish scale pits will occupy a large amount of farmland and reduce the area of ​​farmland for local farmers.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1. The farmland sample land implemented this time is in the arid and semi-arid area of ​​Fushige Township, Fumeng County, Fuxin City, Northwest Liaoning Province, surrounded by eroded ditches and slopes of farmland soil, and the distribution range of longitude and latitude is W: 121°07′38.202″ -121°08′1.182″, N: 42°7′49″-42°8′17.46″, the altitude distribution range of farmland is 269.3-316.1 m. The farmland is slope-cut to a certain extent, so that the farmland presents a stepped distribution, and the direction of the steps is perpendicular to the direction of the erosion ditch.

[0023] 2. Use sand with a particle size of less than 2mm to improve the soil on the 3 terraced farmlands. The farmlands were set as sample plots from top to bottom ,Look like ,Look like :

[0024] 1) Measured plot The area is 1.36 mu, and three sample points were selected at the slope of the sample plot to measure the soil layer thickness. The average depth of the soil layer on the ri...

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PUM

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Abstract

The invention relates to a farmland soil fixation and water retention method, in particular to a ditch slope soil fixation and water retention method for a farmland soil erosion ditch. The method comprises the following steps: firstly, selecting an erosion ditch slope of farmland soil around arid and semi-arid regions, and performing slope cutting treatment to enable the farmland to be distributedin a stepped manner; secondly, improving the soil through sand, and covering the surface of the soil with sand with a thickness of 5-15 cm and a particle size smaller than 2 mm, so as to change the surface structure of the soil, promote rainwater infiltration, and reduce runoff formation; and finally, planting crops suitable for local growth at the soil. The method enables the breathability, thewater absorption rate and the water flow infiltration rate of the soil to be increased, slows down the formation of runoff, enable deep soil to fully absorb rainwater, and also can reduce the drippingcorrosion effect of the rainwater, the problem that water retention measures such as fish-scale pits and horizontal ditches cannot be taken by farmlands is solved, the damage to farmland soil functions is avoided, and a new way is provided for erosion ditch treatment.

Description

technical field [0001] The invention relates to a method for soil consolidation and water conservation in farmland, in particular to a method for soil consolidation and water conservation in ditch slopes of farmland soil erosion ditches. Background technique [0002] Due to the concentrated rainfall and the undulating terrain, gully erosion is more common in the north. Especially in Inner Mongolia and northwestern Liaoning with arid and semi-arid climate, the vegetation coverage is poor and gully erosion is more common. There are 70,000 erosion ditches and 62,400 development ditches in the Inner Mongolia Autonomous Region, with an area of ​​2,147.11 km 2 , the length of the erosion ditch is 109,800 km, and the gully density is 0.38 km / km 2 , the channel aspect ratio is 9.68%. There are 47,200 erosion channels and 39,100 development channels in Liaoning Province, with a total area of ​​198.61 km 2 , the total length of erosion channels is 20,700 km, and the gully density ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/00
Inventor 侯永侠刘涛魏建兵温宏伟李玉双宋雪英陈红亮孙晓倩乔思敏武权伟何勇欣
Owner SHENYANG UNIV
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