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Comprehensive benefit evaluation and analysis of77 counties' on Yangtze River protection forest engineering (the first period) in Sichuan and Chongqing
DU Yajun, CHEN Guoxian, CHEN Xiuming, CHEN Junhua, LEI Xiaozhang, CAI Xiaohu, PENG Peihao
cje . 2003, (1): 69 -72 .