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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
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Functional traits predict relationship between plant abundance dynamic and long-term climate warming
Nadejda A. Soudzilovskaia,Tatiana G. Elumeeva,Vladimir G. Onipchenko,Islam I. Shidakov,Fatima S. Salpagarova,Anzor B. Khubiev,D. K. Tekeev,Johannes H. C. Cornelissen +7 more
TL;DR: It is shown that plant functional traits can be used as predictors of vegetation response to climate warming, accounting in the test ecosystem for 59% of variability in the per-species abundance relation to temperature.
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The significance of local water resources captured in small reservoirs for crop production – A global-scale analysis
Dominik Wisser,Steve Frolking,Ellen M. Douglas,Balázs M. Fekete,Andreas Schumann,Charles J. Vörösmarty +5 more
TL;DR: In this paper, the authors explored the potential of supplemental irrigation applied to all cropland areas to increase crop evapotranspiration (or green water flow), using locally stored surface runoff in small reservoirs for different scenarios of installed reservoir capacity.
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Effect of grid size on effective parameters and model performance of the MIKE‐SHE code
TL;DR: In this paper, the application of the physically based distributed MIKE-SHE code to a medium size catchment using different grid sizes to investigate scale effects on the model results was discussed.
Journal ArticleDOI
The International Model for Policy Analysis of Agricultural Commodities and Trade (IMPACT): Model description for version 3:
Sherman Robinson,Daniel Mason d'Croz,Shahnila Islam,Timothy B. Sulser,Richard D. Robertson,Tingju Zhu,Arthur Gueneau,Gauthier Pitois,Mark W. Rosegrant +8 more
TL;DR: The International Food Policy Research Institute's International Model for Policy Analysis of Agricultural Commodities and Trade (IMPACT) supports analysis of long-term challenges and opportunities for food, agriculture, and natural resources at global and regional scales as discussed by the authors.
Journal ArticleDOI
Environmental change and water management in the Pyrenees: Facts and future perspectives for Mediterranean mountains
TL;DR: In this paper, the effect of environmental changes observed in the 20th century on hydrology and water management in the southern Pyrenees, in terms of land use and climate, is analyzed.
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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