Derya ÖNDER, Mehmet AYDIN, Süha BERBEROĞLU, Sermet ÖNDER, Tomohisa YANO

The use of aridity index to assess implications of climatic change for land cover in Turkey

This study was carried out to determine the impacts of climate change on aridity and land cover in Turkey. Data for future (2070s) climate change, according to present conditions (1990s), were estimated from the prediction results of a regional climate model (RCM). The RCM, which was developed in Japan, is based on the MRI model. The potential impacts of climate change were estimated according to the A2 scenario of Special Report on Emissions Scenarios (SRES). Aridity index, the ratio of precipitation to potential evapotranspiration, was computed by using measured data for the present condition and estimated data by the RCM for the future years. Changes in aridity were evaluated by comparing the current and future index values. Aridity variables were interpolated to determine the spatial distribution by means of geostatistical methods. Land cover was modelled and mapped by using the present and future aridity index data. In the southern regions of Turkey, especially along Mediterranean coasts, projected precipitation for 2070s will be 29.6% less than the present. On the contrary, an increase (by 22.0%) in precipitation was projected along the coast of Black Sea. The model predicted that the temperature might increase by 2.8-5.5 °C in the different regions of the country. This increase in temperature could result in higher evaporative demand of the atmosphere in the future (on the average 18.4 and 22.2% in the Mediterranean and Black Sea coastal regions, respectively and 17.8% in the whole country). Thus, an increase in aridity was foreseen for the whole Turkey except the north-eastern part. A conversion of deciduous broadleaf forest to evergreen needle-leaf forest is predicted in the northern coastal areas when we compare the future land cover with the present situation. The mixed forest vegetation could spread in the interior parts of East Anatolia and the north-western part of the country in the future.

Anahtar Kelimeler:

Aridity, climate change, land cover, monitoring, Turkey

The use of aridity index to assess implications of climatic change for land cover in Turkey

Keywords:

Aridity, climate change, land cover, monitoring, Turkey,

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Alexandrov, V.A. and G. Hoogenboom. 2000. The impact of climate variability and change on crop yield in Bulgaria. Agricultural and Forest Meteorology. 104: 315-327.
Arora, V.K. 2002. The use of the aridity index to assess climate change effect on annual runoff. Journal of Hydrology. 265: 164-177.
Avcı, M. 1999. Optimizing soil water use in wheat production systems in dryland areas of Turkey. Efficient Soil Water Use: the Key to Sustainable Crop Production in Dry Areas. In: Proceedings of the Workshops Organized by the Optimizing Soil Water Use Consortium. Niamey, April 1998 and Amman, May 1999. ICARDA and ICRISAT. pp. 221-242.
Aydın, M. 1995. Water: Key ingredient in Turkish farming. Forum for applied research and public policy. A Quarterly Journal of the University of Tennessee. 10: 68-70.
Aydın, M., T. Yano, F. Evrendilek and V. Uygur. 2008. Implications of climate change for evaporation from bare soils in a Mediterranean environment. Environmental Monitoring and Assessment. 140: 123-130.
Badini, O., C.O. Stöckle and E.D. Franz. 1997. Application of crop simulation modelling and GIS to agroclimatic assessment in Burkina Faso. Agriculture, Ecosystems & Environment. 64: 233- 244.
Breiman, L., J. Friedman, R. Olshen and C. Stone. 1984. Classification and Regression Trees. Wadsworth International Group, Belmont, California.
Brumbelow, K. and A. Georgakakos. 2001. An assessment of irrigation needs and crop yield for the United States under potential climate changes. Journal of Geophysical Research. 106: 27383- 27405.
Campbell, B. D., M.D. Stafford-Smith and G.M. MecKeon. 1997. Elevated CO2and water supply interactions in grasslands: a pasture and rangelands management perspective. Global Change Biology. 3: 177-187.
Clarke, D., M. Smith and K. El-Askari. 1998. CROPWAT for Windows: User Guide. CropWat4 Windows Version 4.2. Food and Agriculture Organization of the United Nations(FAO). Rome, Italy.
Cooke, R., A. Warren and A. Goudie. 1993. Desert Geomorphology. UCL Press. London. p. 526.
DİE (State Institute of Statistics). 2000. Statistical Yearbook of Turkey. Republic of Turkey, Prime Ministry. pp. 742.
DSİ (State Hydraulic Works). 1999. Statistical Bulletin with Maps. Part 1-2. Ministry of Energy and Natural Resources, General Directorate of Hydraulic Works, Ankara. pp. 590.
Fuhrer, J. 2003. Agroecosystem responses to combinations of elevated CO2, ozone, and global climate change. Agriculture, Ecosystems & Environment. 97: 1-20.
Gülbeyaz, O., 2007. Cografi Bilgi Sistemleri ve Uzaktan Algılama Yöntemleri ile Türkiye Ölçeğinde Arazi Örtüsünün Sınıflandırılması. Yüksek Lisans Tezi, Mustafa Kemal Üniversitesi. Fen Bilimleri Enstitüsü, p. 70.
Hood, A., B. Cechet, H. Hossain and K. Sheffield. 2006. Options for Victorian agriculture in a “new” climate: Pilot study linking climate change and land suitability modelling. Enviromental Modelling & Software. 21: 1280-1289.
Hulme, M., E.M. Barrow, N.W. Arnell, P.A. Harrisson, T.C. Johns and T.E. Downing. 1999. Relative impacts of human-induced climate change and natural climate variability. Nature. 397: 688- 691.
IPCC, 2001. Climate Change 2001: The Scientific Basis. Cambridge University Press, UK.
Kenny, G.J., W. Ye, T. Flux and R.A. Warrick. 2001. Climate variations and New Zealand agriculture: The CLIMPACTS system and issues of spatial and temporal scale. Environmental International. 27: 189-194.
Kimura, F. 2007. Downscaling of the global warming projections to Turkey. In: The Final Report of the Research Project on the Impact of Climate Changes on Agricultural Production System in Arid Areas (ICCAP). Research Institute for Humanity and Nature (RIHN) of Japan, and the Scientific and Technological Research Council of Turkey (TÜBITAK), ICCAP Pub.No 10 (ISBN 4-902325-09-8), Kyoto, Japan, pp. 21-37.
Kitoh, A., M. Hosaka, Y. Adachi and K. Kamiguchi. 2005. Future projections of precipitation characteristics in East Asia simulated by the MRI CGCM2. Advances in Atmospheric Sciences. 22: 467–478.
Kitoh, A. 2007. Future Climate Projections around Turkey by Global Climate Models. In: The Final Report of the Research Project on the Impact of Climate Changes on Agricultural Production System in Arid Areas (ICCAP). Research Institute for Humanity and Nature (RIHN) of Japan, and the Scientific and Technological Research Council of Turkey (TÜBITAK), ICCAP Pub.No 10 (ISBN 4-902325-09-8), Kyoto, Japan, pp. 39-42.
Krige, D.G. 1966. Two-dimensional weighted moving average trend surfaces for ore-evaluation. John Schneider and Associates. Institute Minneapolis Metal. 66: 13–38.
Krol, M.S. and A. Bronstert. 2007. Regional integrated modelling of climate change impacts on natural resources and resource usage in semi-arid Northeast Brazil. Environmental Modelling & Software. 22: 259-268.
Lioubimtseva, E., R. Cole, J.M. Adams and G. Kapustin. 2005. Impacts of climate and land-cover changes in arid lands of Central Asia. Journal of Arid Environments. 62: 285-308.
Mall, R.K., M. Lal, V.S. Bhatia, L.S. Rathore and R. Singh. 2004. Mitigating climate impact on soybean productivity in India: a simulation study. Agricultural and Forest Meteorology. 121: 113-125.
Matheron, G. 1963. Principles of geostatistics. Economic Geology. 58: 1246–1266.
Moonen, A.C., L. Ercoli, M. Mariotti and A. Masoni. 2002. Climate change in Italy indicated by agrometeorological indices over 122 years. Agricultural and Forest Meteorology. 111: 13-27.
Nakicenovic, N. and R. Swart. 2000. Special report on emissions scenarios. In: A Special Report of Working group III of the Intergovernmental Panel on Climate Change. Cambridge University. pp. 599.
Quinn, N.W.T., L.D. Brekke, N.L. Miller, T. Heinzer, H. Hidalgo and J.A. Dracup. 2004. Model integration for assessing future hydroclimate impacts on water resources, agricultural production and environmental quality in the San Joaquin Basin, California. Enviromental Modelling & Software. 19: 305-316.
Reilly, J., D. Schimmelpfennig and J. Lewandrowski. 2000. Global, regional and local food production and trade in a changing environment. In: Climate Change and Global Crop Productivity (Eds.: K.R. Reddy and H.F. Hodges). CABI Pub., New York, pp. 437-455.
Rosenzweig, C., K.M. Strzepek, D.C. Major, A. Iglesias, D.N. Yates, A. McCluskey and D. Hillel. 2004. Water resources for agriculture in a changing climate: international case studies. Global Environmental Change. 14: 345-360.
Sano, J., M. Ando and S. Tamai. 2007. Field research on dominant vegetation and environmental factors on the basis of projection on the vegetation change after global warming in the eastern Mediterranean region of Turkey. In: The Final Report of the Research Project on the Impact of Climate Changes on Agricultural Production System in Arid Areas (ICCAP). Research Institute for Humanity and Nature (RIHN) of Japan, and The Scientific and Technological Research Council of Turkey (TÜBITAK), ICCAP Pub.No 10 (ISBN 4-902325-09-8), Kyoto, Japan, pp. 119-124.
Sato, T., F. Kimura and A. Kitoh. 2007. Projection of global warming onto regional precipitation over Mongolia using a regional climate model. Journal of Hydrology. 333: 144–154.
Schulze, R. 2000. Transcending scales of space and time in impact studies of climate and climate change on agrohydrological responses. Agriculture, Ecosystems & Environment. 82: 185- 212.
Smith, M. 1992. CROPWAT-A Computer Program for Irrigation Planning and Management. FAO Irrigation and Drainage Paper No. 46. Rome.
Southworth, J., J.C. Randolph, M. Habeck, O.C. Doering, R.A. Pfeifer, D.G. Rao and J.J. Johnston. 2000. Consequences of future climate change and changing climate variability on maize yields in the mid-western United States. Agriculture, Ecosystems & Environment. 82: 139-158.
Tamai, S., K. Kato, Y. Kishibe, M. Ando, and J. Sano. 2007. Effect of climate changes on the species composition and productivity of plant communities in the eastern Mediterranean region of Turkey. In: The Final Report of the Research Project on the Impact of Climate Changes on Agricultural Production System in Arid Areas (ICCAP). Research Institute for Humanity and Nature (RIHN) of Japan, and The Scientific and Technological Research Council of Turkey (TÜBITAK), ICCAP Pub.No 10 (ISBN 4-902325-09-8), Kyoto, Japan, pp. 103-110.
Türkeş, M. 1996. Spatial and temporal analysis of annual rainfall variations in Turkey. International Journal of Climatology. 16: 1057-1076.
Türkeş, M. 1998. Influence of geopotential heights, cyclone frequency and southern oscillation on rainfall variations in Turkey. International Journal of Climatology. 18: 649-680.
UNESCO. 1979. Map of the World Distribution of Arid Regions. MAB Techn. Note 7.
Vicente-Serrano, S.M., J.M. Cuadrat-Prats and A. Romo. 2006. Aridity influence on vegetation patterns in the middle Ebro Valley (Spain): Evaluation by means of AVHRR images and climate interpolations techniques. Journal of Arid Environments. 66: 353-375.
Wolfe, S. A. 1997. Impact of increased aridity on sand dune activity in the Canadian Prairies. Journal of Arid Environments. 36: 421- 432.
Yano, T., M. Aydın and T. Haraguchi. 2007. Impact of climate change on irrigation demand and crop growth in a Mediterranean environment of Turkey. Sensors. 7: 2297-2315.
Yatagai, A. 2007. Development of a daily grid precipitation data in the East Mediterranean. In: The Final Report of the Research Project on the Impact of Climate Changes on Agricultural Production System in Arid Areas (ICCAP). Research Institute for Humanity and Nature (RIHN) of Japan, and The Scientific and Technological Research Council of Turkey (TÜBITAK), ICCAP Pub.No 10 (ISBN 4-902325-09-8), Kyoto, Japan, pp. 33- 38.
Yukimoto, S., A. Noda, A. Kitoh, M. Sugi, Y. Kitamura, M. Hosaka, K. Shibata, S. Maeda and T. Uchiyama. 2001. A new Meteorological Research Institute coupled GCM (MRI- CGCM2)-its climate and variability-. Papers in Meteorology and Geophysics. 51: 47-88.
Zhang, X.-C. and W.-Z. Liu. 2005. Simulating potential response of hydrology, soil erosion, and crop productivity to climate change in Changwu tableland region on the Loess Plateau of China. Agricultural and Forest Meteorology. 131: 127-142.