Dynamic Analysis of Soil Erosion in Songhua River Watershed

5th Annual International Conference on Material Science and Environmental Engineering

材料科学;生态环境科学

Zhang, Yujuan^1 ; Li, Xiuhai^1 ; Wang, Qiang^1 ; Liu, Jiang^1 ; Liang, Xin^1 ; Li, Dan^1 ; Ni, Chundi^1 ; Liu, Yan^1

Heilongjiang Institute of Technology, Harbin

150050, China^1

关键词: Analysis of soils;    Area proportions;    Landsat TM data;    Revised universal soil loss equations;    Soil erosion dynamics;    Songhua River;    Spatial distribution patterns;    Temporal dynamics;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/301/1/012093/pdf
DOI  :  10.1088/1757-899X/301/1/012093

来源: IOP

【 摘 要 】

In this paper, based on RS and GIS technology and Revised Universal Soil Loss Equation (RUSLE), the soil erosion dynamic changes during the two periods of 1990 and 2010 in Bin County was analyzed by using the Landsat TM data of the two periods, so as to reveal the soil erosion spatial distribution pattern and spatial and temporal dynamic evolution rule in the region. The results showed that: the overall patterns of soil erosion were basically the same in both periods, mainly featuring slight erosion and mild erosion, with the area proportions of 80.68% and 74.71% respectively. The slight and extremely intensive erosion changing rates showed a narrowing trend; mild, moderate and intensive erosion was increasing, with a trend of increased soil erosion; mild and intensive erosion were developing towards moderate erosion and moderate and extremely intensive erosion were progressing towards intensive erosion.