6Grossman G M,Krueger A B.Economic growth and the environment[J].Quarterly Journal of Economics,1995,110(2):353～377.
7Ehrhardt-Martinez K,Grenshaw,et al.Deforestation and the environmental Kuzents curve:A cross-national investigation of intervening mech-anisms[J].Social Science Quarterly,2002,83(1):226～243.
8York R,Rosa E A,et al.STIRPAT,IPAT and ImPACT:analytic tools for unpacking the driving forces of environmental impacts[J].EcologicalEconomics,2003(46):351～365.
