干旱区生态环境知识资源中心(Arid): Assessing the trends of streamflow and its linkages with climate variables in the Dez river basin, Iran

Arid

DOI	10.1007/s13762-021-03432-w
	Assessing the trends of streamflow and its linkages with climate variables in the Dez river basin, Iran
	Mahmoodi, N.; Osati, K.; Salajegheh, A.; Saravi, M. Mohseni
通讯作者	Osati, K (corresponding author), Univ Kurdistan, Fac Nat Resources, Sanandaj, Iran. ; Osati, K (corresponding author), Univ Kurdistan, Kurdistan Studies Inst, Dept Zrebar Lake Environm Res, Sanandaj, Iran.
来源期刊	INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
ISSN	1735-1472
EISSN	1735-2630
出版年	2021-06
英文摘要	It is important to assess possible temporal trends in streamflow discharge and the factors influencing it for optimum decisions in regional water resources planning. This study aims to investigate the possible trends in river discharge, land-use changes, and climate factors and their possible linkages. Therefore, streamflow records from eight sites of the Dez River Basin, Iran, were analyzed by a modified Mann-Kendall test to examine possible trends in annual and monthly time series of streamflow. The results showed significant negative trends in the streamflow time series of the warm months (April, May, June, July, August, and September) over 34 year-long records. Streamflow reductions in sub-basins that were unaffected by irrigation indicated that land-use change cannot cause the observed trend. Although no significant trends were observed statistically for precipitation data, streamflow reductions possibly caused by overall reductions in precipitation. Besides that, there were significant increasing trends in temperature and evaporation, especially in summer season. The Pearson correlation analysis was applied to explore the relationships between evaporation and streamflow time series during the warm months (May, June, July, August, and September). The results indicated strong correlations between river discharge and evaporation at the monthly scale for six of eight sites. Besides the powerful effects of temperature on water losses through evaporation, changes in temperature also can cause some changes in precipitation forms and patterns as well as basin responses. This highlighted the role of changes in temperature that intensifies the effect of overall decreasing changes in precipitation on the streamflow trends.
英文关键词	Climate change Correlation analysis Dez river basin Land-use Modified mann-kendall test Semi-arid region
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000666833900002
WOS关键词	LAND-USE CHANGES ; WATER-RESOURCES ; COLUMBIA RIVER ; IMPACTS ; PRECIPITATION ; PATTERNS ; RUNOFF ; FLOW ; REGIONALIZATION ; CATCHMENT
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352266
作者单位	[Mahmoodi, N.] Univ Kiel, Dept Hydrol & Water Resources Management, Kiel, Germany; [Osati, K.] Univ Kurdistan, Fac Nat Resources, Sanandaj, Iran; [Osati, K.] Univ Kurdistan, Kurdistan Studies Inst, Dept Zrebar Lake Environm Res, Sanandaj, Iran; [Salajegheh, A.; Saravi, M. Mohseni] Univ Tehran, Fac Nat Resources, Karaj, Iran
推荐引用方式 GB/T 7714	Mahmoodi, N.,Osati, K.,Salajegheh, A.,et al. Assessing the trends of streamflow and its linkages with climate variables in the Dez river basin, Iran[J],2021.
APA	Mahmoodi, N.,Osati, K.,Salajegheh, A.,&Saravi, M. Mohseni.(2021).Assessing the trends of streamflow and its linkages with climate variables in the Dez river basin, Iran.INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY.
MLA	Mahmoodi, N.,et al."Assessing the trends of streamflow and its linkages with climate variables in the Dez river basin, Iran".INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (2021).