Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.2166/nh.2015.143 |
Assessing the impact of climate change on water resources, crop production and land degradation in a semi-arid river basin | |
Emam, Ammar Rafiei1,2; Kappas, Martin2; Hosseini, Seyed Zeynalabedin2 | |
通讯作者 | Emam, Ammar Rafiei |
来源期刊 | HYDROLOGY RESEARCH
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ISSN | 0029-1277 |
EISSN | 2224-7955 |
出版年 | 2015 |
卷号 | 46期号:6页码:854-870 |
英文摘要 | The semi-arid regions of Iran have experienced severe water resources stress due to natural (e.g., drought) and anthropogenic (e.g., depletion of water in various sectors) factors. Assessing the impact of climate change on water resources and crop production could significantly help toward better water management and hence prevention of land degradation in this area. A hydrological model of the Razan-Ghahavand basin was used as a representative case study of a semi-arid region of Iran. Future climate scenarios in the mid-21st century were generated from four global circulation models (GCMs) with three scenarios under the fourth assessment report of Intergovernmental Panel on Climate Change emission projections. The GCMs have been downscaled based on observed data at 10 climate stations across the basin. The results showed that for the basin as a whole, the mean annual precipitation is likely to decrease while the maximum temperature increases. The changes in these two climate variables resulted in substantial reduction in groundwater recharge as the main source of water supply in this area. Furthermore, soil water content was decreased which resulted in the reduction of crop yield in rain-fed areas. Indeed, the risk of drought in the south and flooding in the north was high. |
英文关键词 | climate change food security semi-arid area water resources |
类型 | Article |
语种 | 英语 |
国家 | Germany ; Iran |
收录类别 | SCI-E |
WOS记录号 | WOS:000368317600002 |
WOS关键词 | FORMAL BAYESIAN METHOD ; UNCERTAINTY ASSESSMENT ; HYDROLOGICAL RESPONSE ; POTENTIAL IMPACTS ; SWAT MODEL ; GROUNDWATER ; CYCLE ; GLUE ; PRECIPITATION ; EVAPORATION |
WOS类目 | Water Resources |
WOS研究方向 | Water Resources |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/187771 |
作者单位 | 1.Univ Gottingen, Dept Cartog GIS & Remote Sensing, D-37077 Gottingen, Germany; 2.Univ Yazd, Dept Nat Resources & Desert Studies, Yazd, Iran |
推荐引用方式 GB/T 7714 | Emam, Ammar Rafiei,Kappas, Martin,Hosseini, Seyed Zeynalabedin. Assessing the impact of climate change on water resources, crop production and land degradation in a semi-arid river basin[J],2015,46(6):854-870. |
APA | Emam, Ammar Rafiei,Kappas, Martin,&Hosseini, Seyed Zeynalabedin.(2015).Assessing the impact of climate change on water resources, crop production and land degradation in a semi-arid river basin.HYDROLOGY RESEARCH,46(6),854-870. |
MLA | Emam, Ammar Rafiei,et al."Assessing the impact of climate change on water resources, crop production and land degradation in a semi-arid river basin".HYDROLOGY RESEARCH 46.6(2015):854-870. |
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