Response of streamflow to climate variability and human activity in Kashkan river basin | ||
| مهندسی و مدیریت آبخیز | ||
| Article 3, Volume 7, Issue 3, November 2015, Pages 255-264 PDF (886.83 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.22092/ijwmse.2015.101632 | ||
| Authors | ||
| Hamidreza Gharechaei1; Alireza Moghaddamnia2; Arash Malekian* 2; Azadeh Ahmadi3 | ||
| 1MSc Student, Faculty of Natural Resources, University of Tehran, Iran | ||
| 2Assistant Professor, Faculty of Natural Resources, University of Tehran, Iran | ||
| 3Assistant Professor, Faculty of Civil Engineering, Isfahan University of Technology, Iran | ||
| Abstract | ||
| Climate change and anthropogenic effects are two main drivers of stream flow changes. In this study, the trend and Fluctuations in hydro climatic data series of Kashkan River were evaluated during 1972-2011. Then, the climate elasticity method was used for quantitative assessment of stream flow response to climate variability and human activity. Results revealed that if precipitation decreases by 10%, runoff will decrease by 25.7∼25.1 percent, and if potential evapotranspiration decreases by 10%, runoff will increasing by 15.7∼15.1 percent. In 1999-2011, human activity was the main factor that decreased the amount of runoff in Kashkan river basin. The contribution of human activities were 73.97∼74.22 percent, while the increasing percentage due to climate variability accounted for 25.77∼26.02 percent, showing that runoff in the Kashkan river basin is more sensitive to climate variability than human activities. The results of this study can provide a reference for the development, utilization and management of the regional water resources and ecological environment protection. | ||
| Keywords | ||
| Climate elasticity method; Environment; Quantitative assessment; Runoff changes; Water resources management | ||
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