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Forest growth models accounting for changing environmental conditions.

Project Leader: Hasenauer Hubert, Project Leader

Duration:: 01.01.1997-30.09.2001

Programme:: SFB Waldökosystemsanierung

Type of Research: Applied Research

Further information: http://www.boku.ac.at/sfb/

Staff: Katzensteiner Klaus, Project Staff; Sterba Hubert, Project Staff; Burgmann Markus, Project Staff; Pietsch Stephan, Project Staff; Bokalo Mike, Project Staff

BOKU Research Units: Institute of Forest Ecology; Institute of Forest Growth

Funded by: Austrian Science Fund (FWF) , Georg-Coch-Platz 2, 1010 Wien, Austria

Abstract: The mission of PPT4 is to extend and adapt two different modeling techniques (statistical and biogeochemical models) to assess specific forest ecosystem restoration needs. The tree population model PROGNAUS will be used to predict basal area increment of individual trees as it depends on site, soil and stand mixture types. In combination with our biogeochemical modeling efforts this research will help us to explain the mechanistic component of possible growth changes and to quantify the growth of individual trees during different restoration phases. Recent advantages in physiological research have improved our knowledge of the radiation balance, the trade off between carbon fixation and transpiration losses, respiration, plant nutrition requirements, littering and decomposition processes. Using biogiochemical modeling techniques, we will integrate this information and address forest ecosystem restoration needs. Our goal is to adapt and extend an existing biogeochemical model so that it adequately addresses and integrates the energy, water, nutrition and carbon flux within forest ecosystems.

Keywords: interdisciplinary natural science; environmental research; forestry; silviculture; EDP in agriculture and forestry;; biometrics; forest ecosystem restoration; forest growth;

Publications

** Sterba, H. Forest inventories and growth models to examine management strategies for forests in transition.

Forestry, 75, 4, 411-418 WoS

Hasenauer, H. (2001): Concepts within forest ecosystem modeling and their application..

In: Schneider, P.R., Finger, C.A.G. (Eds.). 2° Simposio Latino-Americano Sobre Manejo Florestal, 39-54. 12-14 Sept. 2001, Universidade Federal de Santa Maria, Brasil

Hasenauer, H., Pietsch, S. (2001): Modellierung von Stoffkreisläufen in Fichten- und Buchenbeständen..

In Moser, A. (Ed.): Beiträge zur Österreichischen Forsttagung 2001, 107-109. Institut für Alpine Naturgefahren und Forstliches Ingenieurwesen, Univ. Bodenkultur Wien, 4-7 Juli 2001. Wien

Pietsch, S., Hasenauer, H. (2001): Modeling water relations within Norway spruce stands..

In: Forstl. Bundesversuchsanstalt Wien (Hrsg.): 14. Tagung des Österr. Arbeitskreises für Pflanzenphysiologie, 91-92. 13. bis 16. 6. 2001, Neuberg and der Mürz

Pietsch, S., Burgmann, M., Hasenauer, H. (2000): Testing mechanistic modeling techniques to assess the water-, carbon- and nitrogen-flux within a spruce and beech stand..

In: Hasenauer, H. (Ed.): Proc. Int. Conference on Ecosystem restoration FER 2000. Vienna, Austria. pp 206-214

Vorträge

Spitzbart, G. (2002): Ein baumindividuelles Wachstumsmodell zur Abschätzung des Einflusses von Umweltveränderungen auf das Wachstum.

Waldforschung aktuell, 20. November 2002, Bundesamt und Forschungszentrum für Wald BFW, Wien