Contributing ratio of impact factor on gully erosion in Loess hilly and gully area of Qinghai province
SUN Genxing, WANG Shi, ZHAO Chuanchuan, YANG Qiaomei, YANG Ninggui, DONG Xu
Ecology and Environment . 2009, (4): 1402 -1406 .  DOI: 10.16258/j.cnki.1674-5906(2009)04-1402-05

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