Method for monitoring amount of water and soil loss

Abstract

The invention relates to a method for monitoring the amount of water and soil loss. The method includes the steps of 1, determining standard granule sieving results; 2, arranging a runoff cylinder, sieving substances in the runoff cylinder, and conducting reduction calculation. The step 1 includes the steps that 1.1, three sections are arranged in 6 cm diameter downstream a soil loss monitoring point to take samples; 1.2, content percentages of granules of various sizes are determined; 1.3, samples are taken from air dried and loose soil samples according to quartering and are sieved, and standard granule sieving results are calculated. The step 2 includes the steps that 2.1, the content percentages of the granules of various sizes are calculated; 2.2, sieving results of the substances in the runoff cylinder are compared with the determining standard granule sieving results, and the actual content of granules with reduced sizes in the runoff cylinder is calculated; 2.3, according to the actual content of the granules with the reduced sizes, the actual soil loss amount of the monitoring point is obtained. The method for monitoring the amount of the water and soil loss has the advantages that relatively reliable data is provided for water erosion monitoring results of mountainous areas and hilly areas where water erosion conditions are severe.

Description

technical field [0001] The invention relates to the technical field of water and soil detection, in particular to a method for monitoring water and soil loss. Background technique [0002] The implementation of soil and water conservation projects is an important means to prevent and control soil and water erosion, protect, improve and rationally utilize water and soil resources, improve land productivity, and give full play to the economic and social benefits of water and soil resources. Soil and water conservation monitoring is a process of dynamic monitoring of the scope of influence, hazards and control effects of soil and water loss by using various means and methods based on the protection of water and soil resources and the maintenance of a good ecological environment. It is a basis for the prevention and control of soil and water loss. It is also the basic work for proposing the important basis for the construction of soil and water conservation projects and the effe...

AI Technical Summary

Problems solved by technology

However, the current soil erosion monitoring method is not suitable for the deployment of runoff pools in mountainous and hilly areas with large slopes. When the rainfall intensity is high or the amount of snowmelt water is large, the water in the runoff tubes at the soil loss monitoring points will be full and cannot be diverted in time. During the treatment, some particulate matter with smaller particle size will flow out of the runoff tube with the water, which eventually makes the soil loss of the measured sample plot smaller than the actual loss. However, no reasonable solution is given in the current monitoring method. Only the monitoring personnel Estimates without basis, monitoring results are unreasonable

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