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- [5] Assessment of soil erosion and sediment delivery ratio using remote sensing and GIS:a case study of upstream Chaobaihe River catchment, north China[J]. Weifeng ZHOU1 and Bingfang WU2 1 Doctor candidate,Graduate School of the Chinese Academy of Sciences(CAS),Beijing 100039,China 2 Prof.,Institute of Remote Sensing Applications,Chinese Academy of Sciences(CAS),Beijing 100101,China.International Journal of Sediment Research. 2008(02)