3Hellmund P C,Smith D.Designing Greenways:Sustainable Landscapes for Nature and People[M].Washington,DC,USA:Island Press,2006.
4Little C E.Greenways for America[M].Johns Hopkins University Press,1995.
5Lewis P H.Quality Corridors for Wisconsin[J].Landscape Architecture(Quarterly),1964,January:100-7.
6McHarg I L.Design with nature[M].Published for the American Museum of Natural History[by] the Natural History Press,1969.
7MacArthur R H,Wilson E O.The Theory of Island Biogeography[M].Princeton University Press,1967.
8President's Commission on Americans Outdoors.Americans outdoors:the legacy,the challenge,with case studies:the report of the President's Commission[R].Island Press.1987.
9Scenic Hudson,Inc,National Park Service.Building Greenways in the Hudson River Valley:A Guide for Action(privately printed report)[R].1989.
10Maryland.Dept.of Natural Resources,Maryland Greenways Commission,PKF Counsulting.Analysis of economic impacts of the Northern Central Rail Trail[M].PKF Consulting,1994.
