Testing scale dependent assumptions in regional ecosystem simulations
White JD and Running SW. 1994. Testing scale dependent assumptions in regional ecosystem simulations. Journal of Vegetation Science. 5(5):687-702
"We present a Regional Ecosystem Simulation System (RESSys) which uses satellite data to define vegetation properties, topographic and soil data to define site characteristics, and a climate generator program to build a topographically sensitive microclimate map. We use a 150-km2 mountainous forested watershed in Glacier National Park to test the consequences of modeling various ecosystem processes using different versions of RESSys with increasing simplifications of the landscape. We found that daily photosynthesis could be predictably estimated between modeling scales. Annual net primary productivity was highly correlated among the modeling scales, and evapotranspiration was similarly predictable between scales. Hydrologic outflow was not highly correlated between different modeling scales."
- Type
- Journal Article
- Authors
- White, Joseph; Running, Steven
- Units
- GLAC
- Keywords
- dependent, Ecology, Ecosystem, Evapotranspiration, Geographic Information System (GIS), Global Change, Hydrology, IAR, Modeling, Photosynthesis, Physical Sciences, Plant Studies, Primary Productivity, scale, Simulation, Vegetation