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A model relating forest growth to ecosystem-scale budgets of energy and nutrients

Titelangaben

Hauhs, Michael ; Kastner-Maresch, Alois ; Rost-Siebert, Klaus:
A model relating forest growth to ecosystem-scale budgets of energy and nutrients.
In: Ecological Modelling. Bd. 83 (1995) Heft 1-2 . - S. 229-243.
ISSN 0304-3800
DOI: https://doi.org/10.1016/0304-3800(95)00101-Z

Abstract

In this model of a forest ecosystem the height growth strategy of individual trees is linked to ecosystem-scale budgets of energy and a growth-limiting nutrient. The model spans from the individual tree to stand scales up to one hectare with a yearly time resolution. Competition among trees above-ground for light and below-ground for nutrients is used to model adaptation to external input fluxes over several tree generations. The competition amongleaves and roots is modelled by a representation of the geometrical structures and a functional balance among the corresponding biomass compartments of trees. Dead biomass is decomposed in relation to its initial quality andnutrients are thus recycled into the root zone. The model is used (i) to reconstruct biomass accumulation and stand structure for even-aged and thinned stands and (ii) to study the evolutionary stability of observed height growthcurves as a function of external input fluxes characterizing the physical environment of the stand in an abstract manner. Empirically, height growth has been widely established as a site-specific growth potential index for Norway spruce stands (Picea abies Karst.) in Germany. The model is used to reconstruct typical height growth curves. Suchan assessment of the initial potential in growth responses is a prerequisite for studying the transient growth response to an external disturbance in the nutrient budget of the stand, e.g. in stands receiving atmospheric deposition.

Weitere Angaben

Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Zusätzliche Informationen: BAYCEER6842
Institutionen der Universität: Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Lehrstuhl Ökologische Modellbildung
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Lehrstuhl Ökologische Modellbildung > Lehrstuhl Ökologische Modellbildung - Univ.-Prof. Dr. Michael Hauhs
Forschungseinrichtungen > Forschungszentren > Bayreuther Zentrum für Ökologie und Umweltforschung - BayCEER
Fakultäten
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften
Forschungseinrichtungen
Forschungseinrichtungen > Forschungszentren
Titel an der UBT entstanden: Ja
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik
Eingestellt am: 30 Sep 2015 05:56
Letzte Änderung: 30 Sep 2015 05:56
URI: https://eref.uni-bayreuth.de/id/eprint/20019