Measuring instrument for rainfall erosion process and its measuring method

Abstract

The invention discloses a rainfall erosion process measurement instrument and a measurement method thereof. The rainfall erosion process measurement instrument and a tripod fixed platform are arranged outdoors, and the rainfall erosion process measurement instrument is arranged on the tripod fixed platform. The screw is fixed; the rainfall erosion process measurement instrument includes a frusto-conical sputtering platform with an inner diameter of 20cm, an outer diameter of 100cm, and a height of 20cm. A 5cm-high concentric circle water tank is arranged every 10cm in width. The ring-shaped concentric water tanks are placed at a height of 15cm, 10cm, 5cm, and 0cm corresponding to the distance from the splash erosion table; different water inlet and outlet pipelines are connected to the concentric water tanks at various distances and heights. The present invention also relates to a method for measuring the rainfall erosion process by using the rainfall erosion process measuring instrument. The instrument can be used to measure the amount of splash erosion of soil particles of different periods, different rain intensities, and different qualities, and draw the rainfall erosion process line, which can clearly reproduce the rainfall. Erosion process, wide range of applications.

Description

technical field [0001] The invention relates to the basic technology of soil erosion, more specifically it relates to a rainfall erosion process measuring instrument and a measuring method thereof. Background technique [0002] Raindrop splash erosion is the initial action of rainfall on the surface soil. It is a soil erosion method in which soil particles are dispersed and transported in the form of jumps by hitting the surface soil. [0003] Quantitative monitoring of the rainfall erosion process is one of the essential contents in the research of soil and water conservation. The traditional method of measuring the amount of soil splash erosion mostly uses splash disks, which cannot provide a quantitative description of the rainfall erosion process. The natural rainfall process In different time periods, the rain intensity is also different, and the splash erosion distance of different quality soil particles is also different. In the past, the data obtained by taking the a...

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Problems solved by technology

[0003] Quantitative monitoring of the rainfall erosion process is one of the essential contents in the research of soil and water conservation. The traditional method of measuring the amount of soil splash erosion mostly uses splash disks, which cannot provide a quantitative description of the rainfall erosion process. The natural rainfall process In different time periods, the rain intensity is also different, and the splash erosion distance of different quality soil particles is also different. In the past, the data obtained by taking the amount of soil splash erosion as an average process during the entire rainfall process is prone to large errors and affects Measurement Accuracy of Soil Splash Erosion Dynamics

The quantitative research and calculation of the rainfall erosion process is relatively lagging behind, so that it is impossible to conduct in-depth and detailed research on the rainfall erosion process, so it is very necessary to design a rainfall erosion process measurement instrument

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