An evapotranspiration model for sparsely vegetated canopies under partial root-zone irrigation

Baozhong Zhang; Shaozhong Kang; Lu Zhang; Ling Tong; Taisheng Du; Fusheng Li; Jianhua ZHANG

doi:10.1016/j.agrformet.2009.07.007

An evapotranspiration model for sparsely vegetated canopies under partial root-zone irrigation

Baozhong Zhang
, Shaozhong Kang^*
, Lu Zhang
, Ling Tong
, Taisheng Du
, Fusheng Li
, Jianhua ZHANG

^*Corresponding author for this work

Department of Biology

Research output: Contribution to journal › Journal article › peer-review

36 Citations (Scopus)

Abstract

An evapotranspiration (E^T) model for sparsely vegetated canopies under partial root-zone irrigation (PRI) was developed and tested using measurements from a vineyard in the arid region of northwest China. This model (PRI-ET) was mainly based on the Shuttleworth-Wallace (S-W) model and took into consideration the differences in soil water content between furrow-irrigation ditch and ridge under the PRI scheme and variable canopy shading over the surface. Estimates of E^T and its components (plant transpiration and soil evaporation) by the PRI-ET and S-W models were compared to E^T, plant transpiration and soil evaporation measured by Bowen ratio-energy balance, heat-pulse sap flow sensor and micro-lysimeter, respectively. The PRI-ET model can estimate the vineyard E^T and its components more accurately than the S-W model, indicating that the PRI-ET model is suitable for estimating vineyard E^T under PRI.

Original language	English
Pages (from-to)	2007-2011
Number of pages	5
Journal	Agricultural and Forest Meteorology
Volume	149
Issue number	11
DOIs	https://doi.org/10.1016/j.agrformet.2009.07.007
Publication status	Published - 3 Nov 2009

User-Defined Keywords

Bowen ratio-energy balance
Evapotranspiration model
Partial root-zone irrigation
Shuttleworth-Wallace model
Vineyard

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10.1016/j.agrformet.2009.07.007

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title = "An evapotranspiration model for sparsely vegetated canopies under partial root-zone irrigation",

abstract = "An evapotranspiration (ET) model for sparsely vegetated canopies under partial root-zone irrigation (PRI) was developed and tested using measurements from a vineyard in the arid region of northwest China. This model (PRI-ET) was mainly based on the Shuttleworth-Wallace (S-W) model and took into consideration the differences in soil water content between furrow-irrigation ditch and ridge under the PRI scheme and variable canopy shading over the surface. Estimates of ET and its components (plant transpiration and soil evaporation) by the PRI-ET and S-W models were compared to ET, plant transpiration and soil evaporation measured by Bowen ratio-energy balance, heat-pulse sap flow sensor and micro-lysimeter, respectively. The PRI-ET model can estimate the vineyard ET and its components more accurately than the S-W model, indicating that the PRI-ET model is suitable for estimating vineyard ET under PRI.",

keywords = "Bowen ratio-energy balance, Evapotranspiration model, Partial root-zone irrigation, Shuttleworth-Wallace model, Vineyard",

author = "Baozhong Zhang and Shaozhong Kang and Lu Zhang and Ling Tong and Taisheng Du and Fusheng Li and Jianhua ZHANG",

note = "Funding Information: We are grateful to the research grants from Chinese National Natural Science Fund (50528909 and 50869001), National Key Basic Research Program (2006CB403406), National High Tech Research Plan (2006AA100203) and PCSIRT (IRT0657), Research Grant Council of Hong Kong (HKBU 262307), Hong Kong University Grants Committee (AOE/B-07/99), and Hong Kong Baptist University Matching Research Fund. ",

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T1 - An evapotranspiration model for sparsely vegetated canopies under partial root-zone irrigation

AU - Zhang, Baozhong

AU - Kang, Shaozhong

AU - Zhang, Lu

AU - Tong, Ling

AU - Du, Taisheng

AU - Li, Fusheng

AU - ZHANG, Jianhua

N1 - Funding Information: We are grateful to the research grants from Chinese National Natural Science Fund (50528909 and 50869001), National Key Basic Research Program (2006CB403406), National High Tech Research Plan (2006AA100203) and PCSIRT (IRT0657), Research Grant Council of Hong Kong (HKBU 262307), Hong Kong University Grants Committee (AOE/B-07/99), and Hong Kong Baptist University Matching Research Fund.

PY - 2009/11/3

Y1 - 2009/11/3

N2 - An evapotranspiration (ET) model for sparsely vegetated canopies under partial root-zone irrigation (PRI) was developed and tested using measurements from a vineyard in the arid region of northwest China. This model (PRI-ET) was mainly based on the Shuttleworth-Wallace (S-W) model and took into consideration the differences in soil water content between furrow-irrigation ditch and ridge under the PRI scheme and variable canopy shading over the surface. Estimates of ET and its components (plant transpiration and soil evaporation) by the PRI-ET and S-W models were compared to ET, plant transpiration and soil evaporation measured by Bowen ratio-energy balance, heat-pulse sap flow sensor and micro-lysimeter, respectively. The PRI-ET model can estimate the vineyard ET and its components more accurately than the S-W model, indicating that the PRI-ET model is suitable for estimating vineyard ET under PRI.

AB - An evapotranspiration (ET) model for sparsely vegetated canopies under partial root-zone irrigation (PRI) was developed and tested using measurements from a vineyard in the arid region of northwest China. This model (PRI-ET) was mainly based on the Shuttleworth-Wallace (S-W) model and took into consideration the differences in soil water content between furrow-irrigation ditch and ridge under the PRI scheme and variable canopy shading over the surface. Estimates of ET and its components (plant transpiration and soil evaporation) by the PRI-ET and S-W models were compared to ET, plant transpiration and soil evaporation measured by Bowen ratio-energy balance, heat-pulse sap flow sensor and micro-lysimeter, respectively. The PRI-ET model can estimate the vineyard ET and its components more accurately than the S-W model, indicating that the PRI-ET model is suitable for estimating vineyard ET under PRI.

KW - Bowen ratio-energy balance

KW - Evapotranspiration model

KW - Partial root-zone irrigation

KW - Shuttleworth-Wallace model

KW - Vineyard

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DO - 10.1016/j.agrformet.2009.07.007

M3 - Journal article

AN - SCOPUS:69649097668

SN - 0168-1923

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JO - Agricultural and Forest Meteorology

JF - Agricultural and Forest Meteorology

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ER -

An evapotranspiration model for sparsely vegetated canopies under partial root-zone irrigation

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