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Full-Text Articles in Life Sciences
Modelling Age- And Density-Related Gas Exchange Of Picea Abies Canopies In The Fichtelgebirge, Germany, Eva Falge, John D. Tennhunen, Ronald J. Ryel, Martina Alsheimer, Barbara Köstner
Modelling Age- And Density-Related Gas Exchange Of Picea Abies Canopies In The Fichtelgebirge, Germany, Eva Falge, John D. Tennhunen, Ronald J. Ryel, Martina Alsheimer, Barbara Köstner
Wildland Resources Faculty Publications
Differences in canopy exchange of water and carbon dioxide that occur due to changes in tree structure and density in montane Norway spruce stands of Central Germany were analyzed with a three dimensional microclimate and gas exchange model STANDFLUX. The model was used to calculate forest radiation absorption, the net photosynthesis and transpiration of single trees, and gas exchange of tree canopies. Model parameterizations were derived for six stands of Picea abies (L.) Karst. differing in age from 40 to 140 years and in density from 1680 to 320 trees per hectare. Parameterization included information on leaf area distribution from …