Method for estimating soil erosion rate on slope of mine dumping site

A soil erosion and dumping technology, applied in computing, image data processing, special data processing applications, etc., can solve problems such as the inability to quickly and accurately calculate the soil erosion modulus of mine dumps slopes

Inactive Publication Date: 2017-06-09
INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI +1
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Problems solved by technology

[0005] The invention provides a method for estimating the soil erosion rate of a mine dump slope to solve the prob

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  • Method for estimating soil erosion rate on slope of mine dumping site
  • Method for estimating soil erosion rate on slope of mine dumping site
  • Method for estimating soil erosion rate on slope of mine dumping site

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Embodiment Construction

[0015] The invention relates to a method for quickly estimating the soil erosion rate of a mine dump site slope, in particular to a method for generating high-density point clouds and orthophoto images using drone images, and monitoring the micro-topographic changes of a mine slope, which is used for estimating mine discharge The soil erosion rate of the field slope is obtained by using UAV remote sensing images to obtain dense point clouds of the elevation of the study area, generating two sets of more accurate DEM data in the same period, and extracting the erosion ditch boundaries through visual interpretation to calculate Soil Erosion Modulus Method.

[0016] In one embodiment, the method for estimating the soil erosion rate of the mine dump site slope in the present invention comprises the following steps:

[0017] Step 1: UAVs are used to obtain image data of mine dumps. In view of the characteristics of steep slopes and loose accumulations of mine dumps, it is difficul...

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Abstract

The invention provides a method for estimating a soil erosion rate on a slope of a mine dumping site. The method comprises the steps that an unmanned aerial vehicle is used to acquire an image of the dumping site; accurate space position information of a ground control point of the dumping site is acquired; based on the space information of the control point and the high-definition image, a point cloud and orthographic projection data are generated; visual explanation is conducted to the orthographic projection image, erosion gully boundaries are generated, elevation point data in an erosion gully is screened according to the erosion gully boundaries, and an erosion gully DEM is generated according to the elevation point data; buffer area boundaries are obtained according to the erosion gully boundaries, elevation point data in the buffer area boundaries is screened, and a buffer area DEM is generated according to the elevation point data; a grid calculator tool is used to compute the difference between the buffer area DEM and the erosion gully DEM, so an average depth DEM of the erosion gully is obtained; and according to the average depth DEM of the erosion gully and the erosion gully area, an erosion soil volume of the erosion gully is obtained through computation; and a soil erosion modulus is computed. According to the invention, the soil erosion rate of the slope of the dumping site could be reckoned rapidly.

Description

technical field [0001] The invention relates to the fields of soil and water conservation and restoration ecology, in particular to a method for estimating the soil erosion rate of a side slope of a mine dump. Background technique [0002] Soil erosion caused by development and construction projects is the damage and loss of water and soil resources and land productivity caused by disturbing the surface and underground rock formations, piling up waste, constructing artificial slopes, and discharging various toxic and harmful substances during human production and construction activities. A typical human-accelerated erosion. Mine dumps are formed by stripping, transporting, and stacking of rock and soil in the mining area. The original soil and the overlying rock layer of the ore layer are violently disturbed and mixed, and then piled up in the inner and outer dumps in a loose accumulation state, forming an artificial In the huge loose accumulation landform landscape, the pl...

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Application Information

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IPC IPC(8): G06F17/50G06T17/05
CPCG06F30/20G06T17/05
Inventor 苏正安杨超张建辉秦伟熊东红董一帆殷哲
Owner INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
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