A Physical Tracing Method for Measuring Displacement Flux in Shale Tillage

Abstract

The invention provides a method for accurately measuring the erosion rate of mud shale in the top area of ​​the purple soil slope, and the purpose of the invention is achieved through the following technical solutions: the physical tracer method for the measurement of the area of ​​cultivation erosion in the top area of ​​the purple soil slope uses dyeing The numbered gravel blocks are used as a physical tracer, and the tracer is placed vertically in combination with the drill hole, and the tillage displacement is accurately determined according to the three-dimensional space changes of its position before and after tillage in the direction of the slope, the direction of the cross slope, and the direction of the vertical slope, so as to accurately measure Tillage erosion rates of purple soil matrix clasts.

Description

technical field

[0001] The invention relates to a tracer method for measuring tillage erosion of parent rock in the top area of ​​a purple soil slope, in particular for measuring tillage erosion of parent rock when the depth of the plow layer is greater than the depth of the soil layer. Background technique

[0002] As a mature method of measuring tillage erosion, marker-tracing technique is widely used in the measurement of tillage erosion rate due to its advantages of high measurement accuracy, convenience, simple equipment, and small workload. The soil erosion at the top of the purple soil slope farmland is serious. With the increase of the cultivation years, the soil at the top of the slope decreases, the soil layer becomes thinner and even the parent rock is exposed. In order to maintain a certain thickness of the soil layer to maintain the basic soil productivity, the cultivation process It is very common for medium mud and shale to be broken. On the one hand, tillage ...

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