Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.agwat.2017.01.006 |
Estimation of actual evapotranspiration over a rainfed vineyard using a 1-D water transfer model: A case study within a Mediterranean watershed | |
Galleguillos, Mauricio1,2; Jacob, Frederic3; Prevot, Laurent3; Faundez, Carlos4; Bsaibes, Aline5 | |
通讯作者 | Galleguillos, Mauricio |
来源期刊 | AGRICULTURAL WATER MANAGEMENT
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ISSN | 0378-3774 |
EISSN | 1873-2283 |
出版年 | 2017 |
卷号 | 184页码:67-76 |
英文摘要 | The current study aims to evaluate the capabilities of soil water balance modeling to estimate ET for very different conditions of rainfed grapevine water status, within a vineyard landscape that depicts heterogeneities in canopy, soil and water table conditions. We calibrated the HYDRUS-1D model against measurements of the soil moisture profile within seven contrasted sites, we validated HYDRUS-1D sim-ulations against ET estimates derived from eddy covariance (EC) measurements within two contrasted sites, and we analyzed the temporal dynamics of the HYDRUS-1D ET simulations throughout almost two growth cycles for the seven sites. The calibration of HYDRUS-1D was correctly achieved, with a relative RMSE of 20% on average. Validation of HYDRUS-1D simulations against EC measurements was satisfactory, with RMSE values of about 40W m(-2) at the hourly timescale and 0.5 mm d(-1) at the daily timescale. HYDRUS-1D was able to provide consistent time series of ET within the seven contrasted sites and throughout the two growth cycles. We conclude that HYDRUS-1D simulations can be used as an alternative to EC measurements within rainfed vineyards, to alleviate experimental efforts for device cost and maintenance. Further, HYDRUS-1D simulations can be used for characterizing spatial variabili-ties and temporal dynamics, assessing impact of pedological conditions and land use on ET, or validating remote sensing retrievals over regional extents. (C) 2017 Elsevier B.V. All rights reserved. |
英文关键词 | Heterogeneous landscape HYDRUS-1D Vadose zone Water table |
类型 | Article |
语种 | 英语 |
国家 | Chile ; France ; Netherlands |
收录类别 | SCI-E |
WOS记录号 | WOS:000397351400008 |
WOS关键词 | EDDY COVARIANCE MEASUREMENTS ; LATENT-HEAT FLUX ; DRIP IRRIGATION ; ENERGY-BALANCE ; NITRATE DYNAMICS ; NORTHWEST CHINA ; SOIL-MOISTURE ; DESERT REGION ; ROOT WATER ; FIELD |
WOS类目 | Agronomy ; Water Resources |
WOS研究方向 | Agriculture ; Water Resources |
来源机构 | French National Research Institute for Sustainable Development |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/197142 |
作者单位 | 1.Univ Chile, Fac Agron Sci, Santiago, Chile; 2.Univ Chile, Ctr Climate Resilience Res CR2, Santiago, Chile; 3.SupAgro, IRD, INRA, UMR LISAH, Montpellier, France; 4.Wageningen Univ, Soil Phys & Land Management Grp, Wageningen, Netherlands; 5.ITK, Montpellier, France |
推荐引用方式 GB/T 7714 | Galleguillos, Mauricio,Jacob, Frederic,Prevot, Laurent,et al. Estimation of actual evapotranspiration over a rainfed vineyard using a 1-D water transfer model: A case study within a Mediterranean watershed[J]. French National Research Institute for Sustainable Development,2017,184:67-76. |
APA | Galleguillos, Mauricio,Jacob, Frederic,Prevot, Laurent,Faundez, Carlos,&Bsaibes, Aline.(2017).Estimation of actual evapotranspiration over a rainfed vineyard using a 1-D water transfer model: A case study within a Mediterranean watershed.AGRICULTURAL WATER MANAGEMENT,184,67-76. |
MLA | Galleguillos, Mauricio,et al."Estimation of actual evapotranspiration over a rainfed vineyard using a 1-D water transfer model: A case study within a Mediterranean watershed".AGRICULTURAL WATER MANAGEMENT 184(2017):67-76. |
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