2Powlson D S,Gregory P J,Whalley W R. Soil management in re-lation to sustainable agriculture and ecosystem services[J].Food Poli-cy,2011.72-87.
3Goldman R L,Thompson B H,Daily G C. Institutional incentives for managing the landscape:Inducing cooperation for the production of e-cosystem services[J].{H}ECOLOGICAL ECONOMICS,2007,(02):333-343.
4Labarthe P. Extension services and multifunctional agriculture:Lessons learnt from the French and Dutch contexts and approaches[J].{H}Journal of Environmental Management,2009.193-202.
5Chambo S A. Agricultural co-operatives:role in food security and rural development[A].http://www.un.org/esa/socdev/egms/docs/2009/cooperatives/Chambo.pdf,2009.
6Prakash D. Development of agricultural coop eratives relevance of Japanese experiences to developing countries[M].India:Rural Devel-opment and Management Center,2003.