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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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TLDR
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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Monitoring water stress and fruit quality in an orange orchard under regulated deficit irrigation using narrow-band structural and physiological remote sensing indices
Stavros Stagakis,Victoria González-Dugo,Patricio Cid,M. L. Guillen-Climent,Pablo J. Zarco-Tejada +4 more
TL;DR: In this article, the authors used a multispectral camera with six narrow spectral bands in the visible and near infrared to measure water status and the effect of stress on citrus fruit quality using structural and physiological remote sensing indices.
Journal ArticleDOI
Calibrating a large-extent high-resolution coupled groundwater-land surface model using soil moisture and discharge data
TL;DR: In this paper, the authors used remotely sensed soil moisture data and in situ discharge observations to calibrate a large-extent hydrological model, which is a physically based and fully coupled groundwater-land surface model operating at a daily basis and having a resolution of 30 arc sec (about 1 km at the equator).
Journal ArticleDOI
Impacts of land use on the hydrological response of tropical Andean catchments
Boris F. Ochoa-Tocachi,Wouter Buytaert,Bert De Bièvre,Rolando Célleri,Patricio Crespo,Marcos Villacís,Carlos A. Llerena,Luis Acosta,Mauricio Villazon,Mario Guallpa,Junior Gil-Ríos,Paola Fuentes,Dimas Olaya,Paul Viñas,Gerver Rojas,Sandro Arias +15 more
TL;DR: In this paper, the authors analyzed data generated from a participatory monitoring network of 25 headwater catchments covering three of the major Andean biomes (paramo, jalca and puna) and linked their hydrological responses to main types of human interventions (cultivation, afforestation and grazing).
Journal ArticleDOI
Dual crop coefficient modelling applied to the winter wheat–summer maize crop sequence in North China Plain: Basal crop coefficients and soil evaporation component
TL;DR: The SIMDualKc model is an irrigation scheduling simulation model that uses a daily time-step for performing two separate soil water balances, one for the soil evaporation layer from which K e is computed, and the other for the entire root zone, thus allowing to compute the actual K cb adjusted to the soil moisture conditions as discussed by the authors.
Journal ArticleDOI
Evaluation of estimated weather data for calculating Penman-Monteith reference crop evapotranspiration
TL;DR: In this paper, the FAO Penman-Monteith equation (PM ETo) was used to calculate evapotranspiration values using complete daily weather records for tropical, temperate, semi-arid, and arid climates.
References
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Journal ArticleDOI
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.
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