Line source inflow device for measuring soil infiltration performance

Abstract

The invention discloses a line source inflow device for measuring the soil infiltration performance, comprising a water supply container, a line source water-distributor which is connected with the water supply container and is used for linearly supplying the water in the water supply container to the soil to be measured, a calibrated scale which is arranged at one side or two sides of the soil to be measured and is used for marking the water advance process on the earth' surface of the soil to be measured, and an imaging unit which is arranged above the slope surface of the soil to be measured through a support and is used for taking imaging records of the area covered by slope surface water on the soil surface. According to the invention, when the water content in the line source water-distributor is low, the tiny change of the water content can cause the big change of the energy change, thus the water can be rapidly uniformly distributed in a water-distribution belt; when the watercontent in the line source water-distributor is nearly saturated, the tiny change of the energy change can cause the big change of the water content, thus the consistency between the water-distributor and the energy of the water on the soil interface, the uniform linear water distribution can be realized, and the precision of the soil infiltration performance measurement is increased.

Description

technical field [0001] The invention relates to the field of soil performance measurement, in particular to a line source inflow measurement device for measuring soil infiltration performance. Background technique [0002] The process of soil infiltration connects surface water and groundwater and is an important part of the study of the hydrological cycle. The level of soil infiltration determines the surface yield and the amount of water entering the soil during the rainfall process, the speed of irrigation water infiltrating into the soil, and the migration of pollutants with the water flow. [0003] The methods currently used to measure soil infiltration performance include artificial simulated rainfall method, double-ring method, etc. When the artificial simulated rainfall method is used to measure the soil infiltration process, due to insufficient water supply, the initial infiltration performance of the soil cannot be measured very high, and the impact of raindrops o...

AI Technical Summary

Problems solved by technology

However, using this device to distribute water to the soil is a stressful water distribution process, which cannot achieve a true linear water distribution, thus affecting the measurement accuracy.

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