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Ben Touhami, H.; Bellocchi, G. |
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Bayesian calibration of the Pasture Simulation model (PaSim) to simulate emissions from long-term grassland sites: a European perspective |
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2014 |
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LiveM |
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Livestock, Climate Change and Food Security, Madrid, Spain, 2014-05-19 to 2014-05-20 |
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MA @ admin @ |
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2309 |
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Author |
Daccache, A. |
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Title |
Assessing water and energy footprint of irrigated agriculture in the Mediterranean |
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2014 |
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Agriculture in the Mediterranean, one of the water scarcest regions in the world is by far the largest water consuming sector. Dwindling water supply, increase in drought frequency and uncertainties associated with climate change have raised the alerts on the region’s food security and environmental sustainability. In this study, a large geo-database of global climate, soil and crop were combined with national irrigation statistics to run a water balance model to estimate the theoretical irrigation volumetric needs of the Mediterranean main strategic crops and their relative CO2 emissions. When associated with the reported crop yield and water resources availability, the spatial variability of water (m3/kg) and energy (CO2/kg) productivity across the Mediterranean region are obtained and vulnerable areas are identified. The estimated total water needs for the Mediterranean irrigated agriculture under current climate, land cover and irrigation methods was estimated to be around 46km3/year releasing more than 3Mt of CO2 in the atmosphere only from water abstraction and farm application. Currently, 59% of total irrigation water needs are located in catchments that are classified as under high and extremely high water risk. With climate change, water resources are expected to become scarcer and agriculture more dependent on irrigation to satisfy the continuous increase in food demand. Adaptation and mitigation options to tackle water scarcity and improve productivity under current and future climate will be discussed. |
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FACCE MACSUR Mid-term Scientific Conference |
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3(S) Sassari, Italy |
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FACCE MACSUR Mid-term Scientific Conference, 2014-04-01 to 2014-04-04, Sassari, Italy |
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MA @ admin @ |
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5056 |
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Dumont, B.; Leemans, V.; Ferrandis, S.; Bodson, B.; Destain, J.-P.; Destain, M.-F. |
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Title |
Assessing the potential of an algorithm based on mean climatic data to predict wheat yield |
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Journal Article |
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Year |
2014 |
Publication |
Precision Agriculture |
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Precision Agric. |
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15 |
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3 |
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255-272 |
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Keywords |
stics model; yield prediction; real-time; proxy-sensing; stochastic weather generator; crop yield; mediterranean environment; simulation-model; variability; nitrogen; ensembles; forecasts; demeter; europe |
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The real-time non-invasive determination of crop biomass and yield prediction is one of the major challenges in agriculture. An interesting approach lies in using process-based crop yield models in combination with real-time monitoring of the input climatic data of these models, but unknown future weather remains the main obstacle to reliable yield prediction. Since accurate weather forecasts can be made only a short time in advance, much information can be derived from analyzing past weather data. This paper presents a methodology that addresses the problem of unknown future weather by using a daily mean climatic database, based exclusively on available past measurements. It involves building climate matrix ensembles, combining different time ranges of projected mean climate data and real measured weather data originating from the historical database or from real-time measurements performed in the field. Used as an input for the STICS crop model, the datasets thus computed were used to perform statistical within-season biomass and yield prediction. This work demonstrated that a reliable predictive delay of 3-4 weeks could be obtained. In combination with a local micrometeorological station that monitors climate data in real-time, the approach also enabled us to (i) predict potential yield at the local level, (ii) detect stress occurrence and (iii) quantify yield loss (or gain) drawing on real monitored climatic conditions of the previous few days. |
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English |
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1385-2256 1573-1618 |
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CropM |
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MA @ admin @ |
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4621 |
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Author |
Shechter, M. |
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Title |
Assessing The Impact Of Climate Change On Agriculture And A Water Economy With A Diverse Mix Of Water Types – The Israeli Case Study |
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2014 |
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TradeM |
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World Congress of Environmental and Resource Economists 2014- WCERE2014, Istanbul, Turkey, 2014-06-28 to 2014-07-02 |
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MA @ admin @ |
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2829 |
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Author |
Palatnik, R.R. |
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Title |
Assessing The Impact Of Climate Change On Agriculture And A Water Economy With A Diverse Mix Of Water Types – The Israeli Case Study |
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2014 |
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TradeM |
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Western Economic Association International 89th Annual Conference, Denver, USA, 2014-06-27 to 2014-07-01 |
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MA @ admin @ |
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2701 |
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