Measuring method for researching runoff and sediment production rule of overland flow and underground pore fracture flow

Abstract

The invention discloses a measuring method for researching the runoff and sediment production rule of an overland flow and an underground pore fracture flow. An artificial rainfall device, a self-made experimental apparatus, a small plastic barrel, a large plastic barrel with graduations, a sampling bottle, a graduated cylinder and a beaker are provided in the method. The measuring method comprises the following steps of: A, setting and measuring the bare rate of bedrock; B, measuring the underground pore fracture degree; C, determining the raininess; D, collecting a runoff sample and a sediment production sample; E, measuring the runoff volume; F, measuring the sediment yield: measuring suspended sediments and measuring traction loads; G, measuring the loss of soil nutrients; H, measuring the content of sediment nutrients; and I, measuring the content of runoff nutrients. The invention provides the effective method for accelerating to research the soil erosion mechanism in the karst region through researching the runoff and sediment production rule of the overland flow and the underground pore fracture flow in the karst region by combining the self-made experimental apparatus which is capable of adjusting the slope and the pore fracture degree and manually simulating rainfall.

Description

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AI Technical Summary

Benefits of technology

The technical effect of this new technology described by this inventor is its ability to spread out over large geographic regions where there are many small holes or cracks within them through which water flows freely without being blocked off from flowing smoothly due to gravity forces during rainwater cycles. This allows researchers studying how these tiny openings affects ground degradation processes more effectively than previous methods such as laboratory experiments alone.

Problems solved by technology

This patented technical problem addressed by this patents relates to understanding how rainwater from certain locations falls onto rocks during droughts or other situations caused by overgrazing vegetation near these sites. Current experimental techniques have limitations such as being limited in terms of sample size, requiring longer periods of precipitation before analysis results become available, leading to difficulties in analyzing changes related to soil eruption.

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