Enhanced Growth Rate and Reduced Water Demand of Crop Due to Climate Change in the Eastern Mediterranean Region

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dc.authoridGarcia y Garcia, Axel/0000-0002-7263-530X
dc.contributor.authorBen-Asher, Jiftah
dc.contributor.authorYano, Tomohisa
dc.contributor.authorAydin, Mehmet
dc.contributor.authorGarcia y Garcia, Axel
dc.coverage.doi10.1007/978-3-030-01036-2
dc.date.accessioned2024-09-18T20:11:30Z
dc.date.available2024-09-18T20:11:30Z
dc.date.issued2019
dc.departmentHatay Mustafa Kemal Ãœniversitesien_US
dc.description.abstractThe specific objectives of this study were to: (a) test the reliability of a regional climate model (RCM) as a tool for climate change projection in the Eastern Mediterranean, (b) compare the observed yield variables of maize and wheat in the region with results of two crop models, (c) compare the models DSSAT and SWAP and (d) use DSSAT and SWAP to generate future productivity of wheat and maize under the A2 global warming scenario. Reference evapotranspiration was highly correlated with the models with average r(2) = 0.98 and a unit slope. The two models accurately predicted observed dry mass production (DMP) and leaf area index (LAI) of wheat and maize. The correlations strengthen the legitimacy of DSSAT, SWAP and RCM to serve as predicting models for future climate change on a regional scale. A simulation was carried out to describe the effects of climate change on crop growth and irrigation water requirements for a wheat-maize-wheat cropping sequence. Climate change scenarios were projected using data of three general circulation models (CGCM2, ECHAM4 and MRI) for the period of 1990-2100 and one RCM for the period of 2070-2079. Daily RCM data were consistent with actual meteorological data in the region and therefore were used for computations of present and future water balance and crop development. Predictions derived from the models about changes in irrigation and crop growth covered the period of 2070-2079 relative to a baseline period of 1994-2003. The effects of climate change on wheat and maize water requirements and yields were predicted using the detailed crop growth subroutine of the DSSAT (Decision Support System for Agrotechnology Transfer) and SWAP (Soil-Water-Atmosphere-Plant) models. Precipitation was projected to decrease by about 163, 163 and 105 mm during the period of 1990-2100 under the A2 scenario of the CGCM2, ECHAM4 and MRI models respectively (an average of about 1.3 mm/year). The models projected a temperature rise of 4.3, 5.3 and 3.1 degrees C, by the year 2100. An increase in temperature may result in a higher evaporative demand of the atmosphere under combined doubling CO2 concentration and temperature rise by about 2 degrees C for the period of 2070-2079. The temperature rise accelerated crop development and shortened the growing period by a maximum of thirteen days for wheat and nine days for maize during the period 2070-2079. When yield and available water (rain + applied irrigation) were normalised by extension of the growing period with respect to the baselines years, DMP of maize increased by 1-3 ton ha(-1) and that of wheat by 3-4 ton ha(-1). Consequently, water use efficiency (WUE) increased for both crops. It was concluded, therefore, that the effect of increased temperature and doubling CO2 on agro-productivity may be positive. This positive effect can be explained if elevated temperature meets the optimal level of a crop response to temperature. Effects of elevated CO2 on crop tolerance to water stress may counteract the expected negative effects of rising temperature. Increased atmospheric CO2 levels have important physiological effects on crops such as the increase in photosynthetic rate, which is associated with higher yield and WUE, at least for some cereal crops in the Eastern Mediterranean.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK); Ministry of Science, Israel; Bundesministerium fur Bildung und Forschung (BMBF); GLOWA project; project Impact of Climate Change on Agricultural Production in Arid Areas (ICCAP)en_US
dc.description.sponsorshipThe research was funded by the project Impact of Climate Change on Agricultural Production in Arid Areas (ICCAP), administered by the Research Institute for Humanity and Nature (RIHN) of Japan, and the Scientific and Technological Research Council of Turkey (TUBITAK). We are grateful to Drs. M. Koc, M. Unlu and C. Barutcular for providing crop and meteorological data. The study was partially supported by a grant from the Ministry of Science, Israel, the Bundesministerium fur Bildung und Forschung (BMBF), and State and Federal funds allocated under the GLOWA project.en_US
dc.identifier.doi10.1007/978-3-030-01036-2_13
dc.identifier.endpage293en_US
dc.identifier.isbn978-3-030-01036-2
dc.identifier.isbn978-3-030-01035-5
dc.identifier.issn2367-4024
dc.identifier.issn2367-4032
dc.identifier.startpage269en_US
dc.identifier.urihttps://doi.org/10.1007/978-3-030-01036-2_13
dc.identifier.urihttps://hdl.handle.net/20.500.12483/8899
dc.identifier.volume18en_US
dc.identifier.wosWOS:000717135200017en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherSpringer International Publishing Agen_US
dc.relation.ispartofClimate Change Impacts on Basin Agro-Ecosystemsen_US
dc.relation.publicationcategoryKitap Bölümü - Uluslararasıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectClimate change DSSATen_US
dc.subjectCSM-CERES-Wheaten_US
dc.subjectCSM-CERES-Maiseen_US
dc.subjectSWAPen_US
dc.subjectAtmospheric CO2 enrichmenten_US
dc.titleEnhanced Growth Rate and Reduced Water Demand of Crop Due to Climate Change in the Eastern Mediterranean Regionen_US
dc.typeBook Chapteren_US

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