Books by "Robert E. Burgan"
6 books found
Differences in Vegetation Biomass and Structure Due to Cattle Grazing in a Northern Nevada Riparian Ecosystem
by Bruce Leigh Welch, Cecilia W. Johnson, Dawn E. Cameron, Dean E. Medin, Hal E. Anderson, Ralph A. Wilson, Renee O'Brien, Richard F. Schmitz, Robert C. Lucas, Warren P. Clary
1990
Management of Western Dwarf Mistletoe in Ponderosa and Jeffrey Pines in Forest Recreation Areas
by Robert F. Scharpf
1988
Management Consequences of Alternative Harvesting and Residue Treatment Practices
by David N. Cole, James Pershing Blaisdell, Malcolm M. Furniss, Patricia L. Andrews, Peter F. Ffolliott, Robert Earl Benson, William Wykoff
1982
White Pine Blister Rust in Northern Idaho and Western Montana
by David N. Cole, Edward Robbins Burroughs, Patricia L. Andrews, Robert E. Keane, Susan K. Hagle, Warren P. Clary
1989
Weather and Tree Growth Associated with White Fir Mortality Caused by Fir Engraver and Roundheaded Fir Borer
by Craig D. Whitesell, Edwin Q. P. Petteys, George T. Ferrell, James L. Jenkinson, James R. Griffin, Kenneth N. Boe, Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.), Robert M. Russell, William S. Folkman
1974
Ohia forest decline-its severity and rate of spread-was studied by aerial photographic techniques on a 197,000-acre (80,000-ha) portion of the island of Hawaii. In 1954, only 300 acres (121 ha) showed signs of severe decline; by 1972, the acreage of severely affected forest had increased to 85,200 acres (34,480 ha). Rate of decline and current severity were related to mean annual precipitation and to elevation. The epidemic is continuing. Some forests on other Hawaiian islands also display decline symptoms.