Environmental stress in German forests; assessment of critical deposition levels and their exceedances and meteorological stress for crown condition monitoring sites in Germany
2000
Klap, J.M. | Reinds, G.J. | Bleeker, A. | de Vries, W.
Site-specific estimations of meteorological stress and atmospheric deposition were made for the systematic 8 x 8 km2 forest condition monitoring network in Germany for the years 1987-1995. Winter cold and late frost were important temperature stress variables and relative transpiration was a good indicator of drought stress. All variables showed considerable temporal and spatial variation. Present loads of nitrogen and acidity were modelled with an adapted version of the EDACS model and combined withcritical loads and critical deposition levels based on the SMB model. Both present loads and the extents of exceeding showed considerable spatial variation and a clear decrease in time.
显示更多 [+] 显示较少 [-]