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Crop evapotranspiration : guidelines for computing crop water requirements
Richard G. Allen,Luis S. Pereira,Dirk Raes,Martin Smith +3 more
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In this paper, an updated procedure for calculating reference and crop evapotranspiration from meteorological data and crop coefficients is presented, based on the FAO Penman-Monteith method.Abstract:
(First edition: 1998, this reprint: 2004). This publication presents an updated procedure for calculating reference and crop evapotranspiration from meteorological data and crop coefficients. The procedure, first presented in FAO Irrigation and Drainage Paper No. 24, Crop water requirements, in 1977, allows estimation of the amount of water used by a crop, taking into account the effect of the climate and the crop characteristics. The publication incorporates advances in research and more accurate procedures for determining crop water use as recommended by a panel of high-level experts organised by FAO in May 1990. The first part of the guidelines includes procedures for determining reference crop evapotranspiration according to the FAO Penman-Monteith method. These are followed by updated procedures for estimating the evapotranspiration of different crops for different growth stages and ecological conditions.read more
Citations
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Spatial evapotranspiration, rainfall and land use data in water accounting - Part 1: Review of the accuracy of the remote sensing data
TL;DR: In this article, the reliability of remote sensing algorithms to accurately determine the spatial distribution of actual evapotranspiration, rainfall and land use is reviewed, and the authors used only those papers that covered study periods of seasonal to annual cycles because the accumulated water balance is the primary concern.
Journal ArticleDOI
Nitrogen and water use efficiency of fertigated processing potato
TL;DR: In this paper, the response of spring processing potato to different N level by fertigation and deficit irrigation in the dry Mediterranean Bekaa plain of Lebanon was evaluated, and a yield response factor (relationship between relative yield decrease and relative ET deficit) of 0.8 was obtained, while values below 1 justify the implementation of deficit irrigation.
Journal ArticleDOI
Stable carbon isotope analysis as a direct means of inferring crop water status and water management practices
Michael Wallace,Glynis Jones,Michael Charles,Rebecca Fraser,Paul Halstead,Tim H.E. Heaton,Amy Bogaard +6 more
TL;DR: In this paper, stable carbon isotope analysis of plant remains is used to infer water conditions, through the analysis of present-day crop plants grown at multiple locations across the Mediterranean and south-west Asia.
Journal ArticleDOI
Comparison of Process-Based and Temperature-Index Snowmelt Modeling in SWAT
TL;DR: In this article, the authors compared the performances of physically based energy budget and simple temperature-index based snowmelt calculation approaches within the SWAT model at three sites in two different continents.
Journal ArticleDOI
Remote sensing of evapotranspiration over cotton using the TSEB and METRIC energy balance models
TL;DR: In this article, two remote sensing ET models based on thermal infrared (TIR), the Two-Source Energy Balance (TSEB) and the Satellite-Based Energy Balance for Mapping Evapotranspiration with Internalized Calibration (METRIC), were tested for accuracy, and bias at fine (1m) and moderate (30-120m) spatial scales.
References
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Natural evaporation from open water, bare soil and grass
TL;DR: It is shown that a satisfactory account can be given of open water evaporation at four widely spaced sites in America and Europe, the results for bare soil receive a reasonable check in India, and application of theresults for turf shows good agreement with estimates of evapolation from catchment areas in the British Isles.
Journal ArticleDOI
On the Assessment of Surface Heat Flux and Evaporation Using Large-Scale Parameters
C. H. B. Priestley,R. J. Taylor +1 more
TL;DR: In this article, the large-scale parameterization of the surface fluxes of sensible and latent heat is properly expressed in terms of energetic considerations over land while formulas of the bulk aerodynamic type are most suitahle over the sea.
Book
Water quality for agriculture
R. S. Ayers,D. W. Westcot +1 more
TL;DR: Water quality for agriculture, water quality in agriculture for agriculture as mentioned in this paper, water quality of agriculture, Water quality of water for agriculture in agriculture, مرکز فناوری اطلاعات و اسلاز رسانی
Journal ArticleDOI
The Interpretation of the Variations in Leaf Water Potential and Stomatal Conductance Found in Canopies in the Field
TL;DR: In this paper, the stomatal conductance of illuminated leaves is a function of current levels of temperature, vapour pressure deficit, leaf water potential (really turgor pressure) and ambient CO $_2$ concentration and when plotted against any one of these variables a scatter diagram results.
Book ChapterDOI
Yield response to water
TL;DR: In this paper, a methodology to quantify yield response to water through aggregate components which form the "handles" to assess crop yields under both adequate and limited water supply is presented, which takes into account maximum and actual crop yields as influenced by water deficits using yield response functions relating relative yield decrease and evapotranspiration deficits.
Related Papers (5)
On the Assessment of Surface Heat Flux and Evaporation Using Large-Scale Parameters
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River flow forecasting through conceptual models part I — A discussion of principles☆
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