DOI: 10.2166/wcc.2014.139
论文题名: Climate change impact on legumes’ water production function in the northeast of Iran
作者: Sayari N. ; Bannayan M. ; Alizadeh A. ; Farid A. ; Hessami Kermani M.R. ; Eyshi Rezaei E.
刊名: Journal of Water and Climate Change
ISSN: 20402244
出版年: 2015
卷: 6, 期: 2 起始页码: 374
结束页码: 385
语种: 英语
英文关键词: Crop evapotranspiration
; Global warming
; Legumes
; Water demand
英文摘要: Enhanced understanding of the climate impact on crops’ production is necessary to cope with expected climate variability and change. This study was conducted to find any robust association between crop yield and evapotranspiration using historical data (1986–2005) and subsequently employ the acquired relationship to project crop yield under future climate conditions for two agricultural centers in northeast Iran. Three legume crops of chickpea, lentil, and bean were selected in this study. The future precipitation and temperature data were projected by downscaling outputs of global climate model HadCM3 (A2 scenario) by LARS-WG stochastic weather generator. The data were downscaled for the baseline (1961–1990) and two time periods (2011–2030 and 2080–2099) as near and far future conditions. Projected temperature under A2 scenario showed increasing trend changed from 4 to 26% during the legumes’ growth period compared to baseline. In addition, projected annual precipitation change was between _14 and 10% range under different time periods in contrast to baseline. There was a nonlinear relationship between crop yields and the seasonal values of crop evapotranspiration for all crops. The results showed that seasonal evapotranspiration would increase under climate change conditions across study locations. Crop yield would also increase for chickpea but not for lentil and bean for the far future in Sabzevar location compared to baseline. In conclusion, increasing the temperature and decreasing the precipitation may have a negative effect on legumes’ yield in northeast Iran, especially for far future conditions. Therefore, planning effective adaptation and mitigation strategies would be necessary for northeast Iran. © IWA Publishing 2015. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/67630
Appears in Collections: 气候减缓与适应
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作者单位: Shahid Bahonar University of Kerman, P.O. Box 76169-133, Kerman, Iran; Ferdowsi University of Mashhad, P.O. Box 91775-1163, Mashhad, Iran; Institute of Crop Science and Resource Conservation, University of Bonn, Katzenburgweg 5, Bonn, Germany
Recommended Citation:
Sayari N.,Bannayan M.,Alizadeh A.,et al. Climate change impact on legumes’ water production function in the northeast of Iran[J]. Journal of Water and Climate Change,2015-01-01,6(2)