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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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A Review of the Potential Climate Change Impacts and Adaptation Options for European Viticulture
João A. C. Santos,Helder Fraga,Aureliano C. Malheiro,José Moutinho-Pereira,Lia-Tânia Dinis,Carlos Correia,Marco Moriondo,Luisa Leolini,Camilla Dibari,S. Costafreda-Aumedes,Thomas Kartschall,Christoph Menz,Daniel Molitor,Jürgen Junk,Marco Beyer,Hans R. Schultz +15 more
TL;DR: In this article, the authors predicted that climate change is anticipated to exacerbate these recent trends on suitability for wine production, while wine typicity may also be threatened in most cases.
Journal ArticleDOI
Productivity and radiation use efficiency of lettuces grown in the partial shade of photovoltaic panels
TL;DR: In this paper, the effect of photovoltaic panels (PVPs) densities on crop yield was evaluated on four varieties of lettuces (two crisphead lettuces and two cutting lettuces), during two seasons.
Journal ArticleDOI
Calibration of hydrological models using flow-duration curves
Ida Westerberg,José-Luis Guerrero,P. M. Younger,Keith Beven,Keith Beven,Jan Seibert,Jan Seibert,Sven Halldin,Jim Freer,Chong-Yu Xu +9 more
TL;DR: In this article, a calibration method using flow-duration curves (FDCs) was proposed to address the problems of uncertain discharge data, variable sensitivity of different performance measures to different flow magnitudes, influence of unknown input/output errors and inability to evaluate model performance when observation time periods for discharge and model input data do not overlap.
Journal ArticleDOI
Projecting Global Land-Use Change and Its Effect on Ecosystem Service Provision and Biodiversity with Simple Models
Erik J. Nelson,Heather A. Sander,Peter L. Hawthorne,Marc Conte,Driss Ennaanay,Stacie Wolny,Steven M. Manson,Stephen Polasky +7 more
TL;DR: By comparing scenarios and their impacts, this work can begin to identify the global pattern of cropland and irrigation development that is significant enough to meet future food needs but has less of an impact on ecosystem service and habitat provision.
Book ChapterDOI
Crop Water Requirements
Luis S. Pereira,I. Alves +1 more
TL;DR: In this article, the concept of reference evapotranspiration is assumed relative to a crop canopy such as grass but with constant crop characteristics, which reflect the canopy differences between the crop and the reference crop.
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.
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