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Leaf Area Controls on Energy Partitioning of a Mountain Grassland : Volume 4, Issue 5 (11/10/2007)

By Hammerle, A.

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Book Id: WPLBN0003982449
Format Type: PDF Article :
File Size: Pages 32
Reproduction Date: 2015

Title: Leaf Area Controls on Energy Partitioning of a Mountain Grassland : Volume 4, Issue 5 (11/10/2007)  
Author: Hammerle, A.
Volume: Vol. 4, Issue 5
Language: English
Subject: Science, Biogeosciences, Discussions
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Cernusca, A., Tappeiner, U., Haslwanter, A., Hammerle, A., & Wohlfahrt, G. (2007). Leaf Area Controls on Energy Partitioning of a Mountain Grassland : Volume 4, Issue 5 (11/10/2007). Retrieved from

Description: Institut für Ökologie, Universität Innsbruck, Sternwartestr. 15, 6020 Innsbruck, Austria. Using a six year data set of eddy covariance flux measurements of sensible and latent heat, soil heat flux, net radiation, above-ground phytomass and meteorological driving forces energy partitioning was investigated at a temperate mountain grassland managed as a hay meadow in the Stubai Valley (Austria). The main findings of the study were: i) Energy partitioning was dominated by latent heat, followed by sensible heat and the soil heat flux; ii) When compared to standard environmental forcings, the amount of green plant matter, which due to three cuts varied considerably during the vegetation period, explained similar, and partially larger, fractions of the variability in energy partitioning; ii) There were little, if any, indications of water stress effects on energy partitioning, despite reductions in soil water availability in combination with high evaporative demand, e.g. during the summer drought of 2003.

Leaf area controls on energy partitioning of a mountain grassland

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