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Sensitivity of evapotranspiration in a wheat field, a forest, and a grassland to changes in climate and direct effects of carbon dioxide
Penman-Monteith models of evapotranspiration for a wheat field in Nebraska, a forest in Tennessee, and a grassland in Kansas were developed based on micrometeorological and physiological measurements. Model sensitivities to changes in climatic and physiological parameters were analyzed. Climate chan...
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Published in: | Climatic change 1989-04, Vol.14 (2), p.117-151 |
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Main Author: | |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Penman-Monteith models of evapotranspiration for a wheat field in Nebraska, a forest in Tennessee, and a grassland in Kansas were developed based on micrometeorological and physiological measurements. Model sensitivities to changes in climatic and physiological parameters were analyzed. Climate change scenarios generated by general circulation models for the locations and seasons matching the observed data were applied to the micrometeorological models. Simulations show that when all climatic and plant factors are considered, evapotranspiration estimates can differ markedly from those that consider only temperature. Evapotranspiration can differ from the control by about -20 to 40%, depending on ecosystem and on climate/plant input used. |
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ISSN: | 0165-0009 1573-1480 |
DOI: | 10.1007/BF00142724 |