A model to simulate response of plant stomata to environmental conditions

Avissar, Roni; Avissar, Patricia L.; Mahrer, Y.; Bravdo, B.

doi:10.1016/0168-1923(85)90051-6

Cited by 95 publications

(39 citation statements)

References 9 publications

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“…The stomatal resistance rst (s·m ) is parameterized by a multiplicative response to several environmental factors [38][39][40],…”

Section: (3) Canopy Surface Resistancementioning

confidence: 99%

Monitoring of Evapotranspiration in a Semi-Arid Inland River Basin by Combining Microwave and Optical Remote Sensing Observations

2015

Remote Sensing

114

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Abstract:As a typical inland river basin, Heihe River basin has been experiencing severe water resource competition between different land cover types, especially in the middle stream and downstream areas. Terrestrial actual evapotranspiration (ETa), including evaporation from soil and water surfaces, evaporation of rainfall interception, transpiration of vegetation canopy and sublimation of snow and glaciers, is an important component of the water cycle in the Heihe River basin. We developed a hybrid remotely sensed ETa estimation model named ETMonitor to estimate the daily actual evapotranspiration of the Heihe River basin for the years 2009-2011 at a spatial resolution of 1 km. The model was forced by a variety of biophysical parameters derived from microwave and optical remote sensing observations. The estimated ETa was evaluated using eddy covariance (EC) flux observations at local scale and compared with the annual precipitation and the MODIS ETa product (MOD16) at regional scale. The spatial distribution and the seasonal variation of the estimated ETa were analyzed. The results indicate that the estimated ETa shows reasonable spatial and temporal patterns with respect to the diverse cold and arid landscapes in the upstream, middle stream and downstream regions, and is useful for various applications to improve the rational allocation of water resources in the Heihe River basin. OPEN ACCESSRemote Sens. 2015, 7 3057

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“…The stomatal resistance rst (s·m ) is parameterized by a multiplicative response to several environmental factors [38][39][40],…”

Section: (3) Canopy Surface Resistancementioning

confidence: 99%

Monitoring of Evapotranspiration in a Semi-Arid Inland River Basin by Combining Microwave and Optical Remote Sensing Observations

2015

Remote Sensing

114

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“…Whereas only a few studies have been made of certain intrinsic factors (such as leaf age [Field, 1987], position in the canopy and hydraulic architecture [Tyree and Ewers, 1991], internal CO 2 concentration [Jarvis, 1986], hormonal equilibrium, previous growing conditions and nutrient availability [Chapin, 1991;Kleiner et al, 1992]), several models have been proposed that relate stomatal aperture to simultaneous variations in environmental factors and plant water potential at leaf level (Jarvis, 1976;Avissar et al, 1985;Lloyd, 1991;Jones, 1992) and at canopy and regional scale (Jarvis, 1980;Jarvis and McNaughton, 1986; McNaughton and Jarvis, 1991).…”

Section: Introductionmentioning

confidence: 99%

Stomatal response of Quercus pyrenaica Willd to environmental factors in two sites differing in their annual rainfall (Sierra de Gata, Spain)

et al. 1996

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Summary — Quercus pyrenaica natural forests located in the Sierra de Gata (Salamanca Province, Spain) were studied. Two permanent sampling sites were selected at the two extremes of a rainfall gradient in this area. Diurnal courses of transpiration rate, stomatal conductance and leaf water potential were determined approximately every 2-3 weeks in 1991 and 1992 during the active leaf period at different levels in the tree canopy. Current variations in photosynthetically active radiation (PAR) incident to the leaf surface, air and leaf temperature, vapour pressure deficit (VPD) and soil moisture were also measured. Boundary-line response curves between leaf conductance and four variables were studied to determine the general stomatal response patterns. Leaf

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“…Data presented in Avissar et al (1985) indicate that the effect is not likely to be significant during the course of a day. Concentration of COj was not included in this model.…”

Section: Discussionmentioning

confidence: 99%

“…However, reliable prediction of stomatal resistance is essential for functional simulation of water transport in the soil-plant-atmosphere system. Empirical relationships between stomatal resistance and environmental factors have been proposed (Szeicz et al, 1973;Pallardy and Kozlowski, 1979;Avissar et al, 1985;Lynn and Carlson, 1990; The objectives of this paper are: (1) to develop a functional model of leaf resistance in relation to irradiance and leaf water potential; (2) to evaluate the model using published experimental data; and (3) to evaluate the combined effect of irradiance and leaf water potential.…”

Section: Discussionmentioning

confidence: 99%

“…Vapor pressure deficit has been shown to have a direct effect on stomatal resistance in addition to any effect induced by a lowering of the leaf water potential (Lange, 1971;Bakker, 1990;Turner, 1991). Some empirical models consider vapor pressure deficit as a principal factor controlling leaf resistance Avissar et al, 1985;Lynn and Carlson, 1990). …”

Section: Discussionmentioning

confidence: 99%

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Simulation of water transport in the soil-plant-atmosphere system

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A model to simulate response of plant stomata to environmental conditions

Cited by 95 publications

References 9 publications

Monitoring of Evapotranspiration in a Semi-Arid Inland River Basin by Combining Microwave and Optical Remote Sensing Observations

Monitoring of Evapotranspiration in a Semi-Arid Inland River Basin by Combining Microwave and Optical Remote Sensing Observations

Stomatal response of Quercus pyrenaica Willd to environmental factors in two sites differing in their annual rainfall (Sierra de Gata, Spain)

Simulation of water transport in the soil-plant-atmosphere system

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