Spatial patterns of primary productivity in the Greater Yellowstone Ecosystem.

摘要: Landscapes are often heterogeneous in abiotic factors such as topography, climate, and soil, yet little is known about how these may influence the spatial distribution of primary productivity. We report estimates aboveground net productivity (ANPP) 90 sample stands stratified by cover type elevation class, use results to predict ANPP across a portion Greater Yellowstone Ecosystem. Tree was estimated sampling tree density species diameter classes estimating average annual increment coring. Biomass for current past were calculated class each stand using dimension analysis software BIOPAK. Shrub calculating biomass from basal area BIOPAK dividing assumed life span shrubs. Clipping at end growing season used estimate herb ANPP. Differences among types examined with variance. Multiple regression examine relationships between ANPP, soil parent material, type. The best model study area.