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contributor authorDaly, Edoardo
contributor authorPorporato, Amilcare
contributor authorRodriguez-Iturbe, Ignacio
date accessioned2017-06-09T16:17:41Z
date available2017-06-09T16:17:41Z
date copyright2004/06/01
date issued2004
identifier issn1525-755X
identifier otherams-65188.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4206385
description abstractThe governing equations of soil moisture dynamics, photosynthesis, and transpiration are reviewed and coupled to study the dependence of plant carbon assimilation on soil moisture. The model follows the scheme of the soil?plant?atmosphere continuum (SPAC) and uses a simplified model of the atmospheric boundary layer to arrive at an upscaled, parsimonious representation at the daily time scale. The analysis of soil moisture, transpiration, and carbon assimilation dynamics provides an assessment of the role of soil, plant, and boundary layer characteristics on the diurnal courses of photosynthesis and transpiration rates, while the subsequent upscaling at the daily level provides a functional dependence of stomatal conductance on soil moisture that is in good agreement with field experiments. The upscaled dependence of transpiration and carbon assimilation on soil moisture is used in Part II of this paper to explore the impact of soil moisture dynamics on plant conditions when rainfall variability is explicitly considered.
publisherAmerican Meteorological Society
titleCoupled Dynamics of Photosynthesis, Transpiration, and Soil Water Balance. Part I: Upscaling from Hourly to Daily Level
typeJournal Paper
journal volume5
journal issue3
journal titleJournal of Hydrometeorology
identifier doi10.1175/1525-7541(2004)005<0546:CDOPTA>2.0.CO;2
journal fristpage546
journal lastpage558
treeJournal of Hydrometeorology:;2004:;Volume( 005 ):;issue: 003
contenttypeFulltext


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