Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1002/2014WR015409 |
Spatial and diurnal below canopy evaporation in a desert vineyard: Measurements and modeling | |
Kool, D.1,2; Ben-Gal, A.1; Agam, N.2; Simunek, J.3; Heitman, J. L.4; Sauer, T. J.5; Lazarovitch, N.2 | |
通讯作者 | Ben-Gal, A. |
来源期刊 | WATER RESOURCES RESEARCH
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ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2014 |
卷号 | 50期号:8页码:7035-7049 |
英文摘要 | Evaporation from the soil surface (E) can be a significant source of water loss in arid areas. In sparsely vegetated systems, E is expected to be a function of soil, climate, irrigation regime, precipitation patterns, and plant canopy development and will therefore change dynamically at both daily and seasonal time scales. The objectives of this research were to quantify E in an isolated, drip-irrigated vineyard in an arid environment and to simulate below canopy E using the HYDRUS (2-D/3-D) model. Specific focus was on variations of E both temporally and spatially across the inter-row. Continuous above canopy measurements, made in a commercial vineyard, included evapotranspiration, solar radiation, air temperature and humidity, and wind speed and direction. Short-term intensive measurements below the canopy included actual and potential E and solar radiation along transects between adjacent vine-rows. Potential and actual E below the canopy were highly variable, both diurnally and with distance from the vine-row, as a result of shading and distinct wetted areas typical to drip irrigation. While the magnitude of actual E was mostly determined by soil water content, diurnal patterns depended strongly on position relative to the vine-row due to variable shading patterns. HYDRUS (2-D/3-D) successfully simulated the magnitude, diurnal patterns, and spatial distribution of E, including expected deviations as a result of variability in soil saturated hydraulic conductivity. |
英文关键词 | evaporation HYDRUS (2-D 3-D) diurnal variability spatial variability evapotranspiration partitioning potential evaporation |
类型 | Article |
语种 | 英语 |
国家 | Israel ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000342632300045 |
WOS关键词 | ROOT WATER-UPTAKE ; ROW-CROP CANOPY ; DRIP IRRIGATION ; ENERGY-BALANCE ; EVAPOTRANSPIRATION COMPONENTS ; MICROLYSIMETRY TECHNIQUES ; SOIL EVAPORATION ; SONIC ANEMOMETER ; HEAT-FLUX ; SAP FLOW |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
来源机构 | Ben-Gurion University of the Negev |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/185286 |
作者单位 | 1.Agr Res Org, Gilat Res Ctr, Inst Soil Water & Environm Sci, Gilat, Israel; 2.Ben Gurion Univ Negev, Jacob Blaustein Inst Desert Res, Wyler Dept Dryland Agr, French Associates Inst Agr & Biotechnol Drylands, Midreshet Ben Gurion, Israel; 3.Univ Calif Riverside, Dept Environm Sci, Riverside, CA 92521 USA; 4.N Carolina State Univ, Dept Soil Sci, Raleigh, NC 27695 USA; 5.ARS, Natl Lab Agr & Environm, USDA, Ames, IA USA |
推荐引用方式 GB/T 7714 | Kool, D.,Ben-Gal, A.,Agam, N.,et al. Spatial and diurnal below canopy evaporation in a desert vineyard: Measurements and modeling[J]. Ben-Gurion University of the Negev,2014,50(8):7035-7049. |
APA | Kool, D..,Ben-Gal, A..,Agam, N..,Simunek, J..,Heitman, J. L..,...&Lazarovitch, N..(2014).Spatial and diurnal below canopy evaporation in a desert vineyard: Measurements and modeling.WATER RESOURCES RESEARCH,50(8),7035-7049. |
MLA | Kool, D.,et al."Spatial and diurnal below canopy evaporation in a desert vineyard: Measurements and modeling".WATER RESOURCES RESEARCH 50.8(2014):7035-7049. |
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