A water erosion simulation teaching system for variable slope runoff fields

Abstract

The invention discloses a water erosion simulation teaching system for a variable slope runoff field, which includes a workbench. There are a number of vertical partitions distributed equidistantly across the upper end, an unclosed accommodation cavity is formed between two adjacent vertical partitions, multi-sloped boards are respectively arranged between adjacent two partitions, and artificial Rainfall mechanism; the front side of the base is plugged with a filter sieve assembly, and a water tank is placed on the workbench directly below the filter sieve assembly; the runoff field water erosion simulation teaching system of the present invention has a compact structure, making the runoff field occupy an area The area is reduced, the test cost is greatly reduced, the operation is convenient and quick, and the test cycle is greatly shortened. The soil water erosion process is effectively measured and analyzed by changing different inclinations and different concave-convex shapes of the slope, which increases the practicability of the present invention.

Description

technical field [0001] The invention relates to the technical field of soil runoff control, in particular to a water erosion simulation teaching system for variable slope runoff fields. Background technique [0002] The runoff field refers to a test field for field or artificial rainfall soil erosion tests, with different specifications and configurations. The runoff field is generally divided into test plots, flow pools, diversion pools, and drainage channels. According to the purpose of the test and the specific The standard runoff field is about 22 meters long and 1-2 meters wide; however, the problems of using a natural runoff field for testing are: first, the construction of a natural runoff field occupies a large area, and the cost of use is high. The use of natural runoff field uses natural rainfall, but the longer period of natural rainfall will lead to a longer experimental period of runoff field, so a simulation teaching system of runoff field is designed to replac...

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Problems solved by technology

[0002] The runoff field refers to a test field for field or artificial rainfall soil erosion tests, with different specifications and configurations. The runoff field is generally divided into test plots, flow pools, diversion pools and drainage channels, etc., according to the purpose of the test and the specific conditions. The standard runoff field is about 22 meters long and 1-2 meters wide; however, the problems of using a natural runoff field for testing are: first, the construction of a natural runoff field occupies a large area and the cost of use is high. The use of natural runoff field uses natural rainfall, but the longer period of natural rainfall will lead to a longer experimental period of runoff field, so a simulation teaching system of runoff field is designed to replace the existing natural runoff field for simulation experiments. The area of ​​the runoff field is reduced, the test cost is greatly reduced, the operation is convenient and fast, and the test cycle is greatly shortened; second, the existing runoff field water erosion test models usually require the ability to adjust the slope to better adapt to the field environment, although some models have achieved this. One requirement, but with the deepening of scientific research, the requirements for slope shape are becoming more and more complex. More and more research needs to change the concave-convex shape of the slope surface, so as to analyze the impact of different concave-convex shape slopes on the soil water erosion process , so it is very necessary to design a device for measuring the intrusion flow field with variable slope

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