Soil transverse erosion quality measuring method

Abstract

The invention discloses a soil transverse erosion quality measuring method. The method comprises the following steps: collecting a soil sample through a sampling pipe; transferring the soil sample inthe sampling pipe into a sample tube, forming a bottom opening in the bottom of the sample tube, and forming a side opening communicated with the bottom opening in the side wall of the sample tube; arranging a soil transverse erosion quality measuring device, arranging the sample tube in the soil transverse erosion quality measuring device, and arranging a pressure sensor below the sample tube; performing wave test on the soil sample in the sample tube through the soil transverse erosion quality measuring device, and acquiring continuous pressure information in the wave test period in real time through the pressure sensor; and calculating a soil transverse erosion rate of the soil sample according to the continuous pressure information. By adopting the method, the soil transverse erosion rate of coastal wetlands and reservoir areas under the action of waves can be accurately quantified.

Description

technical field [0001] The invention relates to the technical field of ecological engineering, in particular to a method for measuring the quality of soil lateral erosion. Background technique [0002] Under the action of strong hydrodynamic factors such as waves, the front edge of the coastal wetland and the drawdown zone of the reservoir lake form a stepped steep landform. As the dynamic factors continue to act or increase, the sediments at the base of the scarp will erode or even collapse, which will cause the overall erosion of the vegetation front and threaten the safety of the coastal zone and inland waters. Sediment erosion means reduction of vegetation area and loss of ecological services. The mature vegetation zone of the coastal wetland has important ecological service functions such as reducing waves and maintaining biodiversity. The stability of the water-fluctuation zone of the reservoir is of great significance to maintain the safety of the reservoir operatio...

AI Technical Summary

Problems solved by technology

When measuring the soil erosion rate in the existing wave tank experiment, the soil vertical erosion measurement under the action of waves and currents usually uses methods such as measuring the critical flow velocity near the bed and the erosion depth. beach, which cannot be applied to the front of salt marshes (swamps) with a slope close to vertical, that is, there is no measurement method for the lateral erosion rate of the vertical surface of the soil caused by waves in the prior art

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