TY - GEN
T1 - Spatial distribution of soil erosion risk in red eroded area of South China
AU - Li, Xiaofei
AU - Chen, Zhibiao
AU - Chen, Zhiqiang
AU - Chen, Lihui
PY - 2011
Y1 - 2011
N2 - As an ecological process, soil erosion which endangers human existence and development has been one of environmental problem around the world for a long time. Affected by various environmental factors, soil erosion risk has obvious spatial distributions. Taked the Zhu River small watershed of red eroded area of South China as an example, selected the five risk factors of rainfall erosion, terrain slope, soil type, vegetation cover and land use, used spatial analysis and geo-statistics methods of ArcGIS, studied the soil erosion risk. The results indicate that: moderate risk, high risk and extreme risk area proportion accounted for 63.82% of the whole watershed. Light and moderate risk area is mainly distributed along the river valley, throughout the steep and acute slopes of the hilly. High risk area mainly distributed in thin woodland around the red reservoir, the transportation land, blut mountain, collapse post. Extreme risk area is distributed in the quarry. Soil erosion risk has anisotropic characteristics, including the direction of risk is the NE-SW and NEE-SWW, direction of high risk and extreme risk is E-W and SE-NW. The risk of soil erosion escalates gradually from west to east, and emerges "U" from north to south.
AB - As an ecological process, soil erosion which endangers human existence and development has been one of environmental problem around the world for a long time. Affected by various environmental factors, soil erosion risk has obvious spatial distributions. Taked the Zhu River small watershed of red eroded area of South China as an example, selected the five risk factors of rainfall erosion, terrain slope, soil type, vegetation cover and land use, used spatial analysis and geo-statistics methods of ArcGIS, studied the soil erosion risk. The results indicate that: moderate risk, high risk and extreme risk area proportion accounted for 63.82% of the whole watershed. Light and moderate risk area is mainly distributed along the river valley, throughout the steep and acute slopes of the hilly. High risk area mainly distributed in thin woodland around the red reservoir, the transportation land, blut mountain, collapse post. Extreme risk area is distributed in the quarry. Soil erosion risk has anisotropic characteristics, including the direction of risk is the NE-SW and NEE-SWW, direction of high risk and extreme risk is E-W and SE-NW. The risk of soil erosion escalates gradually from west to east, and emerges "U" from north to south.
KW - Geo-statistics
KW - Risk
KW - Soil erosion
KW - Spatial distribution
KW - Zhuxi River
UR - https://www.scopus.com/pages/publications/80052244772
U2 - 10.1109/RSETE.2011.5964819
DO - 10.1109/RSETE.2011.5964819
M3 - 会议稿件
AN - SCOPUS:80052244772
SN - 9781424491711
T3 - 2011 International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2011 - Proceedings
SP - 2490
EP - 2493
BT - 2011 International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2011 - Proceedings
T2 - 2011 International Conference on Remote Sensing, Environment and Transportation Engineering, RSETE 2011
Y2 - 24 June 2011 through 26 June 2011
ER -
