Overstory-understory biomass changes over a 35-year period in southcentral oregon
作者： James M Peek , Jerome J Korol , Donald Gay , Terry Hershey
DOI: 10.1016/S0378-1127(00)00585-5
关键词: Environmental science 、 Biomass (ecology) 、 Period (geology) 、 Forestry 、 Ecology 、 Habitat 、 Satellite imagery 、 Canopy 、 Odocoileus 、 Understory 、 Tree canopy
摘要: Abstract Forest canopy development is known to influence understory biomass relationships. An 85,268 ha area in southcentral Oregon was examined for changes overstory closure using 1953 and 1988 aerial satellite imagery a geographic information system. A negative exponential curve predicted loss of approximately half over the 35-year interval. Reductions were most pronounced at higher elevations where growing conditions conifers pronounced. The related declines mule deer ( Odocoileus hemionus ) populations area.
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