共 31 条
- [31] Quantifying the quality of nature Davis, R. B. and D. S. Anderson. 1999.A numerical method and supporting database for evaluation of maine peatlands as Candidate natural areas. Maine Agricultural and Forest Experiment Station Technical Bulletin 175Maine Agricultural and Forest Experiment Station, University of Maine, Orono, Maine, USA 04469-5782. XXX pp. (paperback), ISSN 1070-1524 Wetlands, 2003, 23 (4) : 1048 - 1049