Yazar
Leonard A Volland
4 cilt bulundu.
Cilt sonuçları
Fire effects on Pacific Northwest forest and range vegetation
Leonard A. Volland · USDA - Forest Service, Pacific Northwest Region
23 sayfa · 1981
Forest fires / Fire ecology
Guidelines for forage resource evaluation within central Oregon pumice zone
Leonard A Volland · U.S.D.A. Forest Service, Pacific Northwest Region
216 sayfa · 1985
Forage plants / Botany
Plant associations of the central Oregon pumice zone
Leonard A Volland · U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Region
138 sayfa · 1985
Plant communities
Phytosociology of the ponderosa pine type on pumice soils in the Upper Williamson River Basin, Klamath County, Oregon
Leonard A. Volland · Yayınevi bilinmiyor
166 sayfa · 1963
Plant communities / Forest soils / Ponderosa pine / Forests and forestry