[CJ-05-5]Change of Cultivated Land and Its Impacts on Agricultural Bio-productivity in China: Implications to National Grain Security

Author：　　Periodical： 　　Source：

Author：Deng, Xiangzheng, Scott Rozelle and Jikun Huang　　Periodical：China Soft Science, No.173, May 2005, pp: 65-70.　　Source： ccap