Abstract
The climatic sensitivity of the water balance of a pine forest was investigated using simulation from a three-layer canopy model run with standard meteorological data collected at the Bordeaux Meteorological Station of Meteo-France from 1949 to 1995. The reference data set was built using daily values of climatic variables. The stand water balance was insensitive to changes in temperature and vapour pressure deficit, which was explained by their countereffects on atmospheric demand and stomatal conductance. It was highly sensitive to change in the annual amount of rainfall. The sensitivity of the annual transpiration of the different canopy layers was well explained by their respective degree of coupling to the atmosphere, the pine transpiration being linearly correlated to the imposed rate (R 2 = 0.98, n = 50) with a slope value (b = 0.85) which is very close to the theoretical value (1-Ωp = 0.90).
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Loustau, D., Berbigier, P., Kramer, K. (1997). Sensitivity of the Water Balance of South-Western France Maritime Pine Forests to Climate. In: Mohren, G.M.J., Kramer, K., Sabaté, S. (eds) Impacts of Global Change on Tree Physiology and Forest Ecosystems. Forestry Sciences, vol 52. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-8949-9_26
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DOI: https://doi.org/10.1007/978-94-015-8949-9_26
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