4Uchida E, Xu J, Rozelle S. Grain for green: costeffectiveness and sustainability of China's conservation set-aside programme. Land Economics, 2005, 81 (2) : 247 -264.
5Xie C, Zhao J, Liang D, et al. Livelihood impacts of cropland to forest and grassland project. Journal of Environmental Planning and Management, 2006, 49(4) : 555-570.
6Ashley C. The impacts of tourism on rural livelihoods: Namibia's experience. London: Chameleon Press, 2000 : 1-23.
7Ashley C, Hussein K. Developing methodologies for livelihood impact assessment: experience of the African wildlife foundation in East Africa. London: Chameleon Press, 2000:1-60.
8Nicol A. Adopting a sustainable livelihoods approach to water projects: implications for policy and practice. London: Chameleon Press, 2000:1-35.
9Turton C. Sustainable livelihoods and project design in India. London: Chameleon Press, 2000:1-35.
10Ellis-Jones J. Poverty, land care, and sustainable livelihoods in hillside and mountain regions. Mountain Research and Development, 1999, 19(3) : 179-190.