Methods to estimate irrigated reference crop evapotranspiration – a review
نویسندگان
چکیده
منابع مشابه
Modelling of Crop Reference Evapotranspiration: A Review
Efficient irrigation water management requires a good quantification of evapotranspiration. The precise estimation of water requirement of crop is very important factor in the application of irrigation design and scheduling. Water relation model are essential component of all crop model because of critical role of water status has in determining growth, productivity and produce quality. Irrigat...
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Modified Bellani plate atmometer has been offered as an alternative and simpler technique to combination-based equations to estimate evapotranspiration ~ET! rate from green grass surface. However, there is a lack of information on its’ accuracy in humid climates. The evaporation rate sEAd from one type of atmometer marketed under the brand name ETgage® ~or ETG! with a Number 30 green canvas cov...
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To set up a reasonable crop irrigation system in the context of global climate change in Northern Xinjiang, China, reference crop evapotranspiration (ET0) was analyzed by means of spatiotemporal variations. The ET0 values from 1962 to 2010 were calculated by Penman-Monteith formula, based on meteorological data of 22 meteorological observation stations in the study area. The spatiotemporal vari...
متن کاملEvaluation of Reference Evapotranspiration Estimation Methods and Development of Crop Coefficient Models
This study is an attempt to find best alternative method to estimate reference evapotranspiration (ETo) for the Nagarjuna Sagar Reservoir Project [NSRP], command area located at Andhra Pradesh, India. When input climatic parameters are insufficient to apply standard Food and Agriculture Organization (FAO) of the United Nations Penman–Monteith (P–M) method. To identify the best alternative clima...
متن کاملEvaluated Crop Evapotranspiration over a Region of Irrigated Orchards with the Improved ACASA–WRF Model Citation
Among the uncertain consequences of climate change on agriculture are changes in timing and quantity of precipitation together with predicted higher temperatures and changes in length of growing season. The understanding of how these uncertainties will affect water use in semiarid irrigated agricultural regions depends on accurate simulations of the terrestrial water cycle and, especially, evap...
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ژورنال
عنوان ژورنال: Water Science and Technology
سال: 2012
ISSN: 0273-1223,1996-9732
DOI: 10.2166/wst.2012.191