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Double-tracer method for measuring gravelly soil tillage erosion

A gravel soil and tracer technology is applied in the field of measuring gravel soil tillage displacement, which can solve the problems of high gravel content, low tillage erosion rate, and magnet powder mixing, etc., to prevent soil erosion, maintain productivity, and simplify operation. Effect

Inactive Publication Date: 2016-09-21
INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
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Problems solved by technology

The main form of the magnet powder used as a tracer is fine particles. However, due to the high content of gravel in the gravel soil, the magnet powder cannot be fully mixed with the gravel, which will cause the tillage erosion rate obtained by the magnetic tracer method to be smaller than the actual gravel soil. tillage erosion rate

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  • Double-tracer method for measuring gravelly soil tillage erosion
  • Double-tracer method for measuring gravelly soil tillage erosion
  • Double-tracer method for measuring gravelly soil tillage erosion

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Embodiment Construction

[0022] Below in conjunction with embodiment the present invention is further described in detail.

[0023] A dual-tracer method for the determination of tillage erosion in gravel soil, which uses the combination of magnetic tracer method and physical tracer method to calculate the tillage displacement of fine particles in gravel soil and the tillage displacement of gravel respectively, and according to the fine-grained displacement in gravel soil Weighted with the content percentage of gravel to calculate the tillage displacement of the gravel soil, and then calculate the tillage erosion rate, according to the following steps:

[0024] a), first measure the bulk density of the soil on the slope to be measured by digging the pit method, and measure the gravel content and the fine particle content of the gravel soil by the sieving method respectively with P 1 and P 2 express;

[0025] b) The proposed tracer plot is 1.00m wide, 0.2m long, and 0.2m deep. m soil pit; the long si...

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Abstract

The invention discloses a double-tracer method for measuring gravelly soil tillage erosion. The content of gravel in the gravelly soil is very high, and the gravel having large particle size cannot fully mix with magnet powder, so that the tillage erosion of gravel in the gravelly soil cannot be measured accurately only with a magnetic tracer method, and the tillage erosion of fine grain in the gravelly soil cannot be measured accurately only with a physical tracer method. The double-tracer method combines the magnetic tracer method and the physical tracer method to calculate the tillage erosion of gravel in the gravelly soil and the tillage erosion of fine grain in the gravelly soil, and performs weighted average to calculate the tillage erosion of the gravelly soil caused by tillage according to the content percentage of gravel and fine grain in the gravelly soil. The double-tracer method overcomes the disadvantages that the displacement of the tillage erosion of the gravelly soil measured by the magnetic tracer method is less than the actual displacement, and the tillage erosion of fine grain in the gravelly soil cannot be measured accurately with the physical tracer method. Moreover, the method has simple operation, fast measurement, and high measuring accuracy.

Description

technical field [0001] The invention relates to a method for measuring tillage displacement of gravel soil, in particular to a double tracer method for measuring tillage erosion of gravel soil. Background technique [0002] As a new method of measuring tillage erosion, magnetic tracer technology 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 main form of the magnet powder used as a tracer is fine particles. However, due to the high content of gravel in the gravel soil, the magnet powder cannot be fully mixed with the gravel, which will cause the tillage erosion rate obtained by the magnetic tracer method to be smaller than the actual gravel soil. tillage erosion rate. The present invention combines the means of the magnetic tracer method and the physical tracer method, uses the magnetic tracer and the physical tracer to measure the plowing erosion amount of ...

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Application Information

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IPC IPC(8): G01N33/24G01N5/00
CPCG01N5/00G01N33/24G01N33/245
Inventor 张建辉贾立志张泽洪魏宇航
Owner INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
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