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Method for measuring relationship between soil infiltration wetting front and earth surface micro-topography

A technology for infiltration fronts and micro-topography, which is applied in measurement devices, permeability/surface area analysis, suspension and porous material analysis, etc., can solve the problems of insufficient expression, troublesome data processing, limited control area, etc., to achieve accurate expression, Effects of Raising Awareness and Research Levels

Inactive Publication Date: 2015-12-09
赵龙山
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Problems solved by technology

However, this method is insufficient for the expression of the infiltration process, and the later data processing is cumbersome
The TDR method has the advantages of fast measurement and convenient use, but the control area of ​​a single probe is limited. If the number of probes is increased, the cost required is relatively high

Method used

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  • Method for measuring relationship between soil infiltration wetting front and earth surface micro-topography
  • Method for measuring relationship between soil infiltration wetting front and earth surface micro-topography
  • Method for measuring relationship between soil infiltration wetting front and earth surface micro-topography

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Embodiment Construction

[0029] Preferred embodiments of the present invention are further described below:

[0030] The technical roadmap of the present invention is as figure 1 As shown, a method for measuring the soil infiltration wetting front and its relationship with the surface microtopography includes the following steps:

[0031] The first step is to prepare the soil profile. Fill the soil layer by layer in the soil tank, 5cm each time, and use a wooden board to flatten and compact the soil surface to reach the actual bulk density of the soil in the research area;

[0032] The second step is to set the initial infiltration front. After the filling is completed, place the soil tank on the test slope, draw the contour line of the soil surface near the plexiglass side on the plexiglass with a pencil, and use it as the initial infiltration front, which is counted as F0 ;

[0033] The third step is artificially simulated rainfall test. After the rainfall starts, mark the wetting front on the ple...

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Abstract

The invention discloses a method for measuring the relationship between soil infiltration wetting front and earth surface micro-topography. The method comprises the following steps: preparing a soil profile, setting an initial infiltration front, carrying out a test of artificially-simulated rainfall, carrying out space coordinate transformation on obtained image files by ArcGIS software, and analyzing the relationship between soil infiltration wetting front and earth surface contour line. The provided method can measure the wetting front during the soil infiltration process, is capable of describing the relationship between soil infiltration wetting front and earth surface micro-topography, and simply and precisely expresses the soil infiltration performance.

Description

technical field [0001] The purpose of the present invention is to solve the problem of measuring the wetting front during the soil infiltration process, and provide a method for describing the relationship between the soil infiltration wetting front and the surface micro-topography, so as to realize the simple and accurate expression of soil infiltration performance. Background technique [0002] Soil infiltration refers to the process of water movement in the soil, which is an important part of the natural water cycle. In unsaturated soil, the soil infiltration process can be regarded as a movement process of water under the influence of gravity. Normally, soil infiltration is expressed by infiltration rate, that is, the amount of infiltration water in the soil per unit time. [0003] The wet peak surface refers to the interface formed between the wetted soil layer and the dry soil layer during the infiltration of water in the soil. In the process of rainfall infiltration...

Claims

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Application Information

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IPC IPC(8): G01N15/08
Inventor 赵龙山吴发启路培
Owner 赵龙山
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