Simulated monthly Statistical- dynamical analysis of day degree of pants’ growth by EHOM model | ||
| تحقیقات مرتع و بیابان ایران | ||
| Article 9, Volume 25, Issue 1 - Serial Number 70, April 2018, Pages 89-101 PDF (581.24 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.22092/ijrdr.2018.116229 | ||
| Authors | ||
| Kamal Omidvar* 1; Reza Ebrahimi2; Fatemeh Taghavinia3; Nezam Tani4 | ||
| 1Professor of Climatology, Yazd University, Iran | ||
| 2Ph.D. Student of Meteorological hazards, Yazd University, Iran | ||
| 3M.Sc. Student of Meteorology, Mohaghegh Ardabili University, Ardabil, Iran | ||
| 4M.Sc. Student of Meteorology, Yazd University, Iran | ||
| Abstract | ||
| The aim of this study was to analyze the effects of global warming on plant growth degree day in the future decades. To this aim, simulated daily temperature data were drawn from EHOM database and under A1B scenario during 2015-2050 from Germany Plank Max. Then, daily degree data were downscaled with a separation of 0.27*.027 degrees longitude and latitude, covering around 30*30 km of Iran, by regional climate model designed at the Abdul Salam Center for Theoretical Physics, Italy. Finally, a matrix with dimensions of 13140*2140 was obtained that rows represent degree day and columns represent stations (cells). The threshold of 5 ° was selected to calculate the growth degree day. Finally, the monthly average of growth degree day was calculated in a matrix with dimensions of 12*2140 in MATLAB software. Then, the map of average of growth degree day was designed through Surfer software. The results showed that June and July had the highest average monthly growth rate in the 100-1000 degree-day. In summer months, the highest degree day was observed in Khozestan plain. With regard to the degree day in spring and summer, Iran can be divided into three areas of mountains and interior foothills, internal pits and external foothills, and plains and southern coast. | ||
| Keywords | ||
| A1B senario; EH5OM model; downscaling; Iran | ||
| References | ||
|
-Alikhani, F., Canvas, A. S. and Muzaffar Mosannan, M., 2011. Effect of temperature and rainfall on irrigated wheat yield in Iran. Scientific Research. Journal of Agricultural Economics and Development, 76 (24): 166-143. - Adams. S. R., Cockshull, K. E. and Cave, C. R. J., 2011. Effect of Temperature on the Growth and Development of Tomato Fruits. Journal of Annals of Botany, 88: 869-877. - Farajzadeh Asl, D., Khorani, A., Moments, S. and Ziaeian, P., 2011. modeling and forecasting wheat yield due to plant phenological periods Case Study: Kurdistan, Research. Journal of Physical Geography, 14 (76): 34-21. -Ghahreman, N. and Ebrahimi, G., 2011. GIS-based analysis of spatial distribution patterns of growing degree-days for agricultural applications in Iran. Journal of Desert, 16: 143-151. -Khoshhal Dastjerdi, J., Rezaei, A. and Yslry, T., 2009. A figure modeling developmental stages of safflower, using temperature and day length, Research, Journal of Physical Geography, 72(14):21-34. -Khoshhal Dastjerdi, J. and Shhsvary, S., 2005. The environmental condition and calculate the thermal requirements of pistachio cultivation in the plains Borkhar. Journal of Applied Sociology, 18(18): 210-193. -Kauppi., P., Posch, M. and Pirinen, P., 2014. Large Impacts of Climatic Warming on Growth of Boreal Forests since 1960, Journal of PLoS One, 9(11): 11-30. -Li, D., Chen, P., Shi, A., Shakiba, E., Gergerich, R. and Chen, Y., 2009. Temperature affects expression of symptoms induced by soybean mosaic virus in homozygous and heterozygous plants. Journal of Heredity, 100(3): 348-354. - Masoodian, S., Alijani, O. and Abraham, R., 2013. Analysis of average total grade, day needs (heating and cooling) in Iranian territory. Journal of Geographical Research, 1: 26-11. -Masoodian, S., Abraham, R., and Yar Ahmadi, A., 2014. Spatiotemporal analysis of the monthly heating degree days in the territory of Iran. Journal of Geography and Regional Development, 12(23):35-23. -Nori, H., Ysaryf, T. and Khoshhal Dastjerdi, J., 2009. Investigated the thermal needs of different developmental stages of sunflower in Kabootarabad. Scientific Research, Journal of Geography and Environmental Planning, 36 (16):16-1. -Nouhi, k., Kamali, Gh. and Mortazavi, A., 2008. An analysis of the impact of heat stress on crops in the southern provinces of the country. Scientific Research, Journal of Geographical Research, 88 (24):74-51. Omidvar, K., Abraham, R. and Narngyfrd, M., 2016. Anticipated cooling needs of Fars province with Zahedan environmental hazards, Journal of application of dynamic modeling data, 4(6): 75-57. - Qasim Azadkhany, m., 2004. The potential impacts of climate change on the productivity of rangeland watershed England. Journal of Geography Education, 69(6):41-36. -Roshan, Gh. and Shahkoie, A., 2013. Growing degree days required changes when soybean plants based on climate change coming decades about the city of Gorgan in Golestan University Journal Journal of Preparation Geographical Space. -Randall, D.,Guy, P., Marco, G. and Daneila, J., 2007. Climate models and their evaluation in Climate change the physical science basis. Cambridge University Press, Cambridge. -Roeckner, E., Brokopf, R., Esch, M., Giorgetta, M., Hagemann, S., Kornblueh, L., Manzini, E., Schlese, U. and Schulzweida, U., 2003. Sensitivity of simulated climate to horizontal and vertical resolution in the ECHAM5 atmosphere model. Journal of Climatology, 19:3771–3791. -Roshan, G. R. and Grab, S. W., 2012. Regional climate change scenarios and their impacts on water requirements for wheat production in Iran. Journal of Plant Productivity, 6(2): 239-266. - Spinoni, J., Vogt, J. and Barbosa, P., 2015. European degree-day climatologies and trends for the period 1951–2011, Journal of Climatology, 35: 25–36. | ||
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