Impact of climate change and human factors on water resources variations in reservoir dams (case study: Lighvan River, Iran)

E3S Web of Conferences

Kanani Reza¹ 

[1] PhD. of Water Resources Engineering, East Azerbaijan Regional Water Corp.;

关键词: climate change;    human activities;    lighvan river;    pettitt;    reservoir;   

DOI  :  10.1051/e3sconf/202234601004

来源: DOAJ

【 摘 要 】

In recent years, runoff of basins has changed due to climate change and human activities. Since river flow changes play a key role in reservoirs water resources planning purposes, the analysis of the role of climatic and human factors in river flow changes is of great importance in reservoirs development plans. In this study, the effect of climate change and human activities on the runoff responses was examined using hydrologic sensitivity analysis in the Lighvan basin located in the northwest of Iran. The Vanyar dam is located in downstream of the Lighvan basin. The Mann–Kendall test and the Pettitt test were applied to identify the monotonic and rapid trends respectively, in hydro-climatic data series. The results showed that there was negative trend in discharge data series. The effect percentages of the human factors and climatic factors on runoff reduction were 65%-84% and 16%-35%, respectively. Therefore, in addition to the role of climate change, there is a need to pay more attention to the impacts of human activities in the upstream of dams. Also, according to the rate of changes of climatic and human factors, the design and planning of water resources of reservoirs should be improved and adapted.

【 授权许可】

Unknown