Method for counter-slope surface soil thickness increasing,permeation increasing and soil preparing of slope croplands

Abstract

The invention discloses a method for counter-slope surface soil thickness increasing,permeation increasing and soil preparing of slope croplands, and relates to a method for permeation increasing and soil preparing of slope croplands. The method aims at solving the technical problems that at present, through a method for preventing and controlling water and soil loss of slope croplands, the height equality is hard to achieve, the occupied cultivation area is large, surface soil layers are disorganized, and the output reduction is caused. The method includes the steps of conducting shoveling in the direction opposite to the water running direction of a furrow and upwards pushing topsoil to form an inner channel, digging a groove in the pit bottom of the inner channel, filling the groove with a mixture of straw, fine sand and topsoil, placing deep soil dug out of a water storage permeation increasing groove on the lower portion in the water running direction of the furrow, and conducting backfill on the surface of the inner channel and the surface of a counter-slope surface soil ridge so that the bottom of the inner channel can be located on the same horizontal line. The method has the advantages that the rainfall water level can be reduced, the water and soil conservation effect is improved, the soil and nutrient loss of slope cropland surface layers is reduced, the ridge directions of the slope croplands are not changed, no land area is occupied, and the method is particularly suitable for slope croplands in black soil regions in the Northeast with vast territory, sparse population and shallow topsoil.

Description

technical field [0001] The invention relates to a method for increasing seepage and preparing land for sloping cultivated land. Background technique [0002] The prevention and control of soil and water loss in sloping farmland and the improvement and sustainable use of sloping farmland are the main development directions for the scientific and effective use of land resources in the future to control and mediate the use of water resources. my country's sloping farmland is one of the countries with the most serious water and soil loss. The soil loss of sloping farmland accounts for more than 40% of the total soil loss in the country, and it is the main source of soil erosion. Severe water and soil erosion on sloping cultivated land leads to the reduction of cultivated land, land degradation, and the loss of effective nitrogen, phosphorus, potassium and other nutrients. Cultivated land is the essence of land and the source of human life and agricultural production. The seriou...

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Problems solved by technology

[0006] The purpose of the present invention is to solve the existing methods for preventing and controlling slope farmland water and soil loss that it is difficult to achieve the same height, and the runoff will gather along the furrows to the low-lying places. Changing to contour ridge farming requires re-division and adjustment of land, which is very difficult, takes up a large area of ​​cultivated land, and has a large amount of soil, which is easy to disturb the topsoil layer and cause technical problems of production reduction. However, it provides a method of slope farmland that reverses slopes to accumulate soil and increase infiltration. method

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