2Huang Jikun, Deng Xiangzheng, Rozelle Scott. Cultivated Land Conversion and Bioproductivity in China [R]. Center for Chinese Agricultural Policy, Chinese Academy of Sciences, 2004
3Uchida Emi, Rozelle Scott. Changes in Cultivated Land due to Urbanization: China in an International Perspective[R]. The University of California, Davis, 2004
4FAO (Food and Agricultural Organization of the United Nations).The State of Food Insecurity in the World 2002[M]. FAO, Rome:FAO, 2003