ADGEO Advances in Geosciences ADGEO Adv. Geosci. 1680-7359 Copernicus Publications Göttingen, Germany 10.5194/adgeo-11-43-2007 Fundamentals of the spatially distributed simulation of the water balance of forest sites in a low-range mountain area Schwärzel K. 1 Häntzschel J. 1 Grünwald T. 2 Köstner B. 2 Bernhofer C. 2 Feger K.-H. 1 Institute of Soil Science and Site Ecology, Dresden University of Technology, Germany Institute of Hydrology and Meteorology, Dresden University of Technology, Germany 30 05 2007 11 43 47 Copyright: © 2007 K. Schwärzel et al. 2007 This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Generic License. To view a copy of this licence, visit https://creativecommons.org/licenses/by-nc-sa/2.5/ This article is available from https://adgeo.copernicus.org/articles/11/43/2007/adgeo-11-43-2007.html The full text article is available as a PDF file from https://adgeo.copernicus.org/articles/11/43/2007/adgeo-11-43-2007.pdf

For a sustainable forest management, a site-specific knowledge on the water balance is a prerequisite. A simple and popular field method for assessing the water balance of forest sites is based on overlaying relief and soil information. Furthermore, climatic influence on the water balance is often restricted to longtime average values of precipitation and air temperature (whole year and/or growing season). However, the impacts of climate change and climatic extremes, as well as silvicultural changes, are inadequately considered. To overcome these short-comings, we integrated the 1D-SVAT model BROOK90 and a radiation model in a GIS to simulate the spatially distributed components of water balance of forest sites. In this paper, we present the model concept and show an approach to describe the influence of a complex terrain on parameters controlling the spatial distribution of energy and water fluxes.

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