共 21 条
[1]
BIRCH TW, 1982, USDA NE70 NE FOR EXP
[2]
BIRDSEY RA, 1983, SO90 US FOR SERV RES
[3]
Brinson M.M., 1981, FWSOBS8117 US FISH W
[4]
BROWN DE, 1979, STRATEGIES PROTECTIO, P269
[5]
CONSIDINE TJ, 1982, NE71 US FOR SERV RES
[6]
COWARDIN L.M., 1979, FWSOBS7931 US FISH W
[7]
Eyre F.H., 1980, FOREST COVER TYPES U
[8]
FARRENKOPPF TO, 1982, PNW94 US FOR SERV RE
[9]
Frayer W. E., 1983, STATUS TRENDS WETLAN
[10]
KINGSLEY NP, 1978, NE54 US FOR SERV RES