4MacDonald,D.A questionnaire survey of farmers opinions and actions towards wildlife on farmland[A].In D Jenkins,ed.Agriculture and the Environment-Symposium No 13[C].Merlewood,Cumbria:Institute of Terrestrial Ecology.1984.171-177.
5Brotherton I.Farmer participation in voluntary land diversion schemes:some observation from theory[J].Journal of Rural Studies,1989,5(3):299-304.
6Brotherton I.What limits participation in ESAS[J].Journal of Environmental Management,1991,32(3):241-249.
7Saunders,C.Single-tier system with farms partly outside the ESA-the case of the Pennine Dales[A].In:M.Whitby ed.Incentives for countryside management:the case of Environmentally Sensitive Area[M].Wallingford:CABI,1994.41-60.
8Moss,J.A baseline assesent for a new ESA-the case of the Mourne Mountains and Slieve Croob[A].In:M Whitby ed.Incentives for countryside management:the case of Environmentally Sensitive Areas[M].Wallingford :CABI,1994.153-178.
9Lemon,M,Park,J.Elicitation of farming agendas in a complex environment[J].Journal of Rural Studies,1993,9:405-410.
10Clark,H A J.Conservation Advice and Investment on Farms:A Study in Three English Counties[D].Norwich,East Anglia:University of East Anglia,1989.
