Soil wind-erosion measuring device and soil wind-erosion measuring method

Abstract

The invention relates to a soil wind-erosion measuring device and a soil wind-erosion measuring method. The soil wind-erosion measuring device comprises a square measuring frame, marking pins, two longitudinal sliding blocks, a vertical measuring scale and a transverse sliding scale, at least one side, in the longitudinal direction, of the square measuring frame is provided with a longitudinal measuring scale, the longitudinal sliding blocks are mounted respectively on two sides in the longitudinal direction, and the transverse sliding scale is fixedly connected with the upper portions of the longitudinal sliding blocks and can longitudinally move along with the longitudinal sliding blocks; the vertical measuring scale is perpendicular to the transverse sliding scale, a sliding connection member can move along the length direction of the transverse sliding scale to drive the vertical measuring scale to move transversely, the sliding connection member is provided with a through hole in the vertical direction, and the vertical measuring scale penetrates the through hole and can move in the hole along the vertical direction. The soil wind-erosion measuring device has the advantages of needlessness of power driving, portability and simplicity in mounting and operation.

Description

technical field [0001] The invention relates to the technical field of wind erosion monitoring, in particular to a device for measuring wind erosion of soil and a method for measuring wind erosion of soil. Background technique [0002] Soil wind erosion is one of the serious environmental problems in the world. China is one of the countries in the world that are seriously harmed by soil wind erosion. Soil wind erosion is the primary process of land desertification in arid, semi-arid and partly humid areas of China. China As of 2014, the area of ​​wind erosion and desertification in China reached 182.63×104km 2 , accounting for 69.93% of the total area of ​​desertified land in the country. Soil wind erosion causes land desertification, soil barrenness, and productivity decline, seriously affecting resource development and sustainable and stable social and economic development in these areas. [0003] The amount of wind erosion refers to the difference between the quality of ...

AI Technical Summary

Problems solved by technology

The second is to use some element tracer; use the element decay cycle to calculate the wind erosion rate, so the cost of wind erosion measurement method is relatively expensive, the technology is difficult, and it is not conducive to popularization

The third method is to compare the soil mechanical composition in different years to judge wind erosion; it is an indirect method, the current application range is relatively narrow, and the theory is immature

The fourth method is to measure wind erosion through indoor wind tunnel or field wind erosion plate, weighing method; it is the most direct and widely used method. The wind erosion plate placed in the field is easy to affect the wind, and then affect the accuracy of wind erosion amount

However, the data measured by wind erosion measuring brazing only represent the amount of wind erosion at one point, and a large number of settings are required to calculate the surface. If the measuring brazing is too dense, it is easy to affect wind erosion, and if it is too sparse, it will affect the measurement accuracy; the wind erosion bridge observes only one wind erosion The wind erosion amount of cross-section changes, and the precision is low when it is extended to the surface domain

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