Yazar
john d dell
3 cilt bulundu.
Cilt sonuçları
Logging residues on Douglas-fir region clearcuts
John D. Dell · Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture
10 sayfa · 1971
Clearcutting / Slash (Logging)
Reducing fire hazard in ponderosa pine thinning slash by mechanical crushing
John D. Dell · Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture
Sayfa sayısı yok · 1969
Forest fires / Forest thinning / Ponderosa pine / Prevention and control / Slash (Logging)
Slash smoke dispersal over western Oregon
John D. Dell · Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
Sayfa sayısı yok · 1970
Air / Pollution / Prescribed burning / Slash (Logging) / Smoke