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Biodiversity/Arthropods aquatic canopy terrestrial conifer riparian lepidoptera - habitat, elevation coarse woody debris litter/soil Decomposition/C dynamics leaf log decomposition elemental budgets root decomposition regional C old-growth C sinks Soils/nutrient dynamics soil characterization, mapping mycorrhizal mats soil solution chemistry trace gases DIRT experiment seasonal N fluxes Vegetation succession growth and yield post-clearcut succession mortality/population dynamics biomass and NPP trends species diversity exotic species and roads characterize old growth Hydrology/small watersheds budgets, land use effects, water quality, peak flows rain-on-snow roads, temperature, revisit peak flows intersite hydrology Forest-stream interactions old-growth v. clearcut river continuum geomorphic template coarse woody debris riparian hyporheic wood model trout dynamics Disturbance/landscape fire history landslides Blue River Experimental Forest established 1948, named Andrews Experimental Forest 1953 forestry research 1948 1950s management efficiency 1960s environmental protection windthrow forest harvest patterns IBP LTER1 LTER2 ecosystem research 1970s clearcutting 1980s cumulative effects of management oldgrowth regional fire history flood disturbance cascade LTER3 LTER4 2002 1990s species conservation, global change LTER5 no cut on public land NATIONAL ISSUES Fig. 1.1. 50 years of H.J. Andrews Experimental Forest research and its context. Evolving emphases are shown within each of seven persistent themes (colored bars).
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