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Determination method of influence of tillage erosion on water erosion of upslope of sloping field

A measurement method and technology for sloping land, applied in the direction of measuring devices, soil material testing, instruments, etc., can solve the problem of few measurement methods, and achieve the effect of improving land productivity and maintaining soil fertility

Inactive Publication Date: 2018-05-08
INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
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Problems solved by technology

However, since previous studies on the processes of water erosion and tillage erosion were carried out independently, there are currently few specific methods for measuring the impact of tillage erosion on water erosion

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  • Determination method of influence of tillage erosion on water erosion of upslope of sloping field

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Embodiment Construction

[0014] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0015] Such as figure 1 As shown, a method for measuring the impact of tillage erosion on upslope water erosion on sloping land includes the following steps:

[0016] 1) Select a slope with a slope of 15°, with a slope length of 8.5m to 10m, and build a 2m×8m runoff plot with tinplate, bricks, and cement.

[0017] 2) Set soil profiles at four depths at 0-3m on the uphill slope of the runoff plot, which are 0cm, 10cm, 20cm and 45cm where the bedrock is exposed, to represent the results of different tillage erosion rates. The smaller the depth of the soil profile , the stronger the tillage erosion; put the plastic cloth on the uphill position of the runoff plot to represent the exposed bedrock due to long-term tillage; take the 45cm deep position on the ...

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Abstract

The invention discloses a determination method of influence of tillage erosion on water erosion of an upslope of a sloping field. On the upslope, soil thicknesses of different depths are designed to represent different tillage erosion intensities; the smaller the soil thickness is, the higher the tillage erosion intensity is; and a runoff generation rate and a sediment production rate of a runoffplot under different tillage intensities are measured to judge the influence of the tillage erosion on the water erosion. The method has the advantages that the determination of the influence of the tillage erosion on the water erosion is achieved, and the determination method is provided for studies of prevention and control of water and soil loss of the sloping farmland, maintenance of soil fertility, improvement of land capability and the like.

Description

technical field [0001] The invention relates to the technical field of measuring the influence of tillage erosion on water erosion, in particular to a method for measuring the influence of tillage erosion on upslope water erosion of sloping land. Background technique [0002] In many sloping lands, tillage erosion and water erosion are not only the main types of soil erosion in agricultural landscapes, but also interact with each other, and the intensity of each type may vary with the erosion process. However, since the past researches on the process of water erosion and tillage erosion were carried out independently, there are few specific methods for measuring the impact of tillage erosion on water erosion. Contents of the invention [0003] Aiming at the defects of the prior art, the present invention provides a method for measuring the influence of tillage erosion on upslope water erosion of sloping land, which can effectively solve the above-mentioned problems in the ...

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Application Information

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IPC IPC(8): G01N33/24
CPCG01N33/24G01N33/246G01N33/245
Inventor 许海超张建辉王勇张泽洪
Owner INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
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