共 33 条
[21]
PERRY DA, 1977, USDA INT238 FOR SERV
[22]
SCHOPMEYER CS, 1974, US AGR HDB DEP AGR S, V450
[23]
SMITH FW, 1981, THESIS U WASHINGTON
[24]
STEPHENS FR, 1966, J FOREST, V64, P184
[26]
HAZARD RATING OF LODGEPOLE PINE STANDS TO MOUNTAIN PINE-BEETLE OUTBREAKS IN SOUTHCENTRAL OREGON
[J].
CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE,
1984, 14 (05)
:666-671
[27]
WAGG JWB, 1962, 47 STAT U FOR RES RE
[28]
WENZEL DL, 1979, SOIL RESOURCE INVENT
[30]
YOUNGBERG C. T., 1959, NORTHWEST SCI, V33, P111