Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3390/rs70505951 |
Impact of Sowing Date on Yield and Water Use Efficiency of Wheat Analyzed through Spatial Modeling and FORMOSAT-2 Images | |
Duchemin, Benoit1; Fieuzal, Remy1; Augustin Rivera, Miguel2; Ezzahar, Jamal3; Jarlan, Lionel1; Cesar Rodriguez, Julio4; Hagolle, Olivier1; Watts, Christopher4 | |
通讯作者 | Fieuzal, Remy |
来源期刊 | REMOTE SENSING
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ISSN | 2072-4292 |
出版年 | 2015 |
卷号 | 7期号:5页码:5951-5979 |
英文摘要 | Regional analysis of water use efficiency (WUE) is a relevant method for diagnosing the performance of irrigation systems in water-limited environments. In this study, we investigated the potential of FORMOSAT-2 images to provide spatial estimates of WUE over irrigated wheat crops cultivated within the semi-arid Yaqui Valley, in the northwest of Mexico. FORMOSAT-2 provided us with a unique dataset of 36 images at a high resolution (8 m) encompassing the wheat growing season from November 2007 to May 2008. Time series of green leaf area index were derived from these satellite images and used to calibrate a simple crop/water balance model. The method was applied over an 8 x 8 km(2) irrigated area on up to 530 wheat fields. It allowed us to accurately reproduce the time courses of Leaf Area Index and dry aboveground biomass, as well as evapotranspiration and soil moisture. In a second step, we analyzed the variations of WUE as the ratio of accumulated dry aboveground biomass to seasonal evapotranspiration. Despite the study area being rather small and homogeneous (soil, climate), we observed a large range in wheat biomass production, from 5 to 15 t center dot ha(-1), which was primarily related to the timing of plant emergence. In contrast, the seasonal evapotranspiration only varied from 350 to 450 mm, with no evident link with sowing practices. A significant gain in crop water productivity was found for the fields sown the earliest (maximal WUE around 3.5 kg center dot m(-3)) compared to those sown the latest (minimal WUE around 1.5 kg center dot m(-3)). These results demonstrated the value of the FORMOSAT-2 images to provide spatial estimates of crop production and water consumption. The detailed information provided by such high space and time resolution imaging systems is highly valuable to identify agricultural practices that could enlarge crop water productivity. |
类型 | Article |
语种 | 英语 |
国家 | France ; Mexico ; Morocco |
收录类别 | SCI-E |
WOS记录号 | WOS:000357596900009 |
WOS关键词 | RADAR SATELLITE DATA ; LEAF-AREA INDEX ; YAQUI VALLEY ; SURFACE-TEMPERATURE ; TIME-SERIES ; STRAW MANAGEMENT ; CROP PRODUCTION ; HEAT-FLUX ; SOIL ; IRRIGATION |
WOS类目 | Remote Sensing |
WOS研究方向 | Remote Sensing |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/190159 |
作者单位 | 1.CESBIO UMR CNRS CNES IRD UPS, Toulouse 9, France; 2.ITSON, Dept Cienciasdel Agua & Medio Ambiente, Obregon 85000, Sonora, Mexico; 3.Fac Sci Semlalia, Marrakech 40000, Morocco; 4.UNISON, Hermosillo 83000, Sonora, Mexico |
推荐引用方式 GB/T 7714 | Duchemin, Benoit,Fieuzal, Remy,Augustin Rivera, Miguel,et al. Impact of Sowing Date on Yield and Water Use Efficiency of Wheat Analyzed through Spatial Modeling and FORMOSAT-2 Images[J],2015,7(5):5951-5979. |
APA | Duchemin, Benoit.,Fieuzal, Remy.,Augustin Rivera, Miguel.,Ezzahar, Jamal.,Jarlan, Lionel.,...&Watts, Christopher.(2015).Impact of Sowing Date on Yield and Water Use Efficiency of Wheat Analyzed through Spatial Modeling and FORMOSAT-2 Images.REMOTE SENSING,7(5),5951-5979. |
MLA | Duchemin, Benoit,et al."Impact of Sowing Date on Yield and Water Use Efficiency of Wheat Analyzed through Spatial Modeling and FORMOSAT-2 Images".REMOTE SENSING 7.5(2015):5951-5979. |
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