Quantifying the contributions of climate change and human interventions on streamflow alteration in the Hableroud River basin using the hydrological sensitivity analysis approach based on the Budyko hypothesis

Document Type : Research/Original/Regular Article

Authors

1 Associate Professor/ Department of Watershed Management, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran

2 Ph.D. Student/ Department of Watershed Management, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran

3 Graduated Ph.D. Student/ Department of Watershed Management, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran

4 Assistant Professor/ Department of Agricultural Economics, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran

5 Head of Surface Water Utilization, Regional Water Company of Tehran/ Tehran, Iran

6 Research Staff/ Applied Research Group, Regional Water Company of Tehran, Tehran, Iran

Abstract

Introduction
Climate change and human interventions are the most important factors that in combination influence the hydrological response of a watershed system. In order to increase the level of their social and economic welfare, human beings have made serious and significant interventions in nature and directly caused several changes in its functions and processes, particularly the hydrological cycle. On the other hand, global climate change imposes several impacts on the natural hydrological cycle. Therefore, the separation of the effects of direct human intervention and climate change on the hydrological processes is of great importance for land use planning, water resources management, and socio-economic development policy-making. The hydrological cycle is one of the most important natural processes subjected to human interventions and climate change, whereas its various aspects and components get altered. One of these hydrological components is the river flow discharge, which is jointly affected by climate change and human interventions, and it will have dire consequences on different aspects of human life. Human activities indirectly (through the emission of greenhouse gases) and directly (through activities such as the construction of dams, water diversion structures, water consumption for agricultural activities, and land use change) affect the hydrological cycle and the natural regime of river flows.
 
Materials and Methods
The area studied in this research includes the upstream part of the Hablehroud watershed draining to the Bonekouh hydrometry station. The whole study area is located within the administrative boundaries of Tehran province. Hablehroud River, which is the main drain of the watershed, has been under pressure in recent years as a result of human activities and climate changes, and its hydrological status has altered significantly during past decades attracting the attention of watershed inhabitants and local authorities mostly blame the climate change as the main cause of the hydrologic alteration. The current research is conducted in order to determine the contribution of climate change and direct human interventions on the discharge decline of the Hableroud watershed. In this research, the hydrological sensitivity analysis approach based on the Budyko hypothesis was used in order to separate the effect of climate change and direct human interventions in reducing the discharge of Habaleroud River at the location of Simindasht and Delichai hydrometric stations. The annual time series of flow discharge during the period 1981 to 2017 was used. Two solution methods by Fu and Zhang have been used to solve the Budyko equation. Prior to the calculation of the contributions, the significant change point along the time series was detected by three tests of the Buishand Range, Standard Normal Homogeneity, and the sequential Mann-Kendall.
 
Results and Discussion
Despite an infinitesimal variation, all the change point detection tests showed that a significant change point occurred in the middle of the 1990s for the annual discharge time series of the both hydrometry stations of Delichai and Simindasht. The contribution of climate change on discharge in the Simindasht and Delichai hydrometry stations was, respectively, calculated as less than one and 53 % according to Fu's method and -6 and 93 % according to Zhang's method. According to Fu's method, the contribution of human intervention in the discharge change of Simindasht and Delichai stations has, respectively, been calculated as -81 and -153 %, and according to Zhang's method as -94 and -193 %. The positive percentage values indicate the incremental effect on the flow discharge and the negative values indicate the subtractive or lessening effect. The results indicated that although the absolute and percentage values of the contributions calculated by both solution methods of the Budyko equation vary somehow, the direction (positive and negative effects) and the relative magnitude of contributions of the human interventions and climate change are similar for two solution methods of the Budyko equation. As can be noticed, at both the studied hydrometry stations, the effect of human intervention is much higher than the climate change effect. Another important point is that the effect of climate change on the flow discharge is subtractive only at the Simindasht hydrometry station according to Zhang’s method, and is incremental for other cases. In other words, climate change has resulted in increasing inflow discharge across the study area. Furthermore, the results of the study indicate that the effect of direct human interventions on the flow discharge is more intensive across the Delichai sub-watershed.
 
Conclusions
According to the results of the study, it can be concluded that the main factor in the reduction of discharge in the Habaleroud River is direct human interventions and climate change has a very small contribution to it. Due to the fact that land use change is the main indicator of human interventions done in line with the main policies and strategies, developing proper policies and strategies to prevent inappropriate land use changes is necessary. Therefore, it is suggested that local policymakers and water resources managers develop and enact policies in order to manage the human activities influencing the natural water cycle. Furthermore, the results of this study can be used as a reference for the development, exploitation, and management of water resources in the future.

Keywords

Main Subjects


References
 
Ahmadi, H., & Delavar, M. (2019). Comparison of different approaches to seprating human and climatic impacts on run-off changes in basins. Iranian journal of Ecohydrology, 6(4), 943-955. doi:10.22059/ije.2019.283700.1139 [In Persian]
Alexandersson, H. (1986). A homogeneity test applied to precipitation data. Journal of climatology, 6(6), 661-675. doi:10.1002/joc.3370060607
Alexandersson, H., & Moberg, A. (1997). Homogenization of Swedish temperature data. Part I: Homogeneity test for linear trends. International Journal of Climatology: A Journal of the Royal Meteorological Society17(1), 25-34. doi:10.1002/(SICI)1097-0088(199701)17:1<25::AID-JOC103>3.0.CO;2-J
Askari, A., Fathian, H., Nikbakht Shahbazi, A., Hasonizade, H., & Zohrabi, N. (2022). Separating the impacts of climate change and human activities on runoff reduction in Karkheh basin by hydrologic sensitivity analysis method. Iranian Water Researches Journal, 16(2), doi:10.22034/iwrj.2022.13801.2389. [In Persian]
Bao, Z., Zhang, J., Wang, G., Fu, G., He, R., Yan, X., Jin, J., Liu, Y., & Zhang, A. (2012). Attribution for decreasing streamflow of the Haihe River basin, northern China: climate variability or human activities? Journal of Hydrology, 460, 117-129. doi:10.1016/j.jhydrol.2012.06.054
Budyko, M. I., & Miller, D. H. (1974). Climate and Life. Academic Press, New York.
Buishand, T. A. (1984). Tests for detecting a shift in the mean of hydrological time series. Journal of hydrology, 73(1-2), 51-69. doi:10.1016/0022-1694(84)90032-5
Chang, J., Zhang, H., Wang, Y., & Zhu, Y. (2016). Assessing the impact of climate variability and human activities on streamflow variation. Hydrology and Earth System Sciences20(4), 1547-1560. doi:10.5194/hess-20-1547-2016
Chen, Z., Chen, Y., & Li, B. (2013). Quantifying the effects of climate variability and human activities on runoff for Kaidu River Basin in arid region of northwest China. Theoretical and applied climatology111(3), 537-545. doi:10.1007/s00704-012-0680-4
Dooge, J.C. (1992). Sensitivity of runoff to climate change: a hortonian approach. Bulletin of the American Meteorological Society73(12), 2013-2024. doi:10.1175/1520-0477(1992)073<2013:SORTCC>2.0.CO;2
Fu, L.L. (1981). Observations and models of inertial waves in the deep ocean. Reviews of Geophysics, 19(1), 141-170. doi:10.1029/RG019i001p00141
Gao, G., Fu, B., Wang, S., Liang, W., & Jiang, X. (2016). Determining the hydrological responses to climate variability and land use/cover change in the Loess Plateau with the Budyko framework. Science of the Total Environment557, 331-342. doi:10.1016/j.scitotenv.2016.03.019
Gharechaei, H., Moghaddamnia, A., Malekian, A., & Ahmadi, A. (2015). Response‎of‎streamflow to climate variability and human activity in Kashkan River basin. Watershed Engineering and Management, 7(3), 255-264. [In Persian]
Han, Z., Long, D., Fang, Y., Hou, A., & Hong, Y. (2019). Impacts of climate change and human activities on the flow regime of the dammed Lancang River in Southwest China. Journal of Hydrology, 570, 96-105. doi:10.1016/j.jhydrol.2018.12.048
Hsun Lee, C., & Fu Yeh, H. (2019). Impact of climate change and human activities on streamflow variations based on the bodyko framework. Journal Water, 11, 1-22. doi:10.3390/w11102001
Huntington, T.G. (2006). Evidence for intensification of the global water cycle: Review and synthesis. Journal of Hydrology319(1-4), 83-95. doi:10.1016/j.jhydrol.2005.07.003
Kanani, R., Fakheri Fard, A., Ghorbani, M.A., & Dinpashoh, Y. (2020). Trend analysis of the streamflow in the Lighvan River Hydrometric Stations (upstream and downstream). Journal of Watershed Management Research, 11(22), 11-19. doi:10.52547/jwmr.11.22.11 [In Persian]
Kazemzadeh, M. (2015). Evaluation of climate change impacts on the hydrological characteristics of watershed, case study: Aji chai Watershed. M.Sc Thesis, University of Tehran, 177 pages. [In Persian]
Li, H., Zhang, Y., Vaze, J., & Wang, B. (2012). Separating effects of vegetation change and climate variability using hydrological modelling and sensitivity-based approaches. Journal of Hydrology420, 403-418. doi:10.1016/j.jhydrol.2011.12.033
Lv, X., Zuo, Z., Xiao, P., Ni, Y., & Sun, J. (2018). Effects of climate change and human activity on runoff in a typical Loess Gullied-Hilly Region Watershed. Polish Journal of Environmental Studies27(2), 779-785. doi:10.15244/pjoes/76117
Milly, P.C., Dunne, K.A., & Vecchia, A.V. (2005). Global pattern of trends in streamflow and water availability in a changing climate. Nature, 438(7066), 347-350. doi: 10.1038/nature04312
Naderi, M., Sheikh, V., Bahrehmand, A., Komaki, C.B., & Ghangermeh, A. (2022). Analysis of river flow regime changes using the indicators of hydrologic alteration (Case study: Hableroud watershed). Water and Soil Management and Modelling, doi:10.22098/mmws.2022.11430.1129. [In Persian]
Rezaei, M., Omidipour, R., Rezaei, A., & Nadaf, M. (2022). Comparison of the effects of land use change and precipitation on annual discharge (case study: Kiar watershed). Integrated Watershed Management, 2(2), 62-74. doi: 10.22034/iwm.2022.556854.1038.
Salmani, H., Sheikh, V.B., Salman Mahiny, A., Ownegh, M., & Fathabadi, A. (2018). Evaluation of hydrological response in tilabad watershed of golestan for future periods as affected by the predicted land use change. Iranian journal of Ecohydrology, 5(2), 399-418. doi:10.22059/ije.2018.232306.577 [In Persian]
Sane, I., Saghafian, B., & Nasseri, M. (2017). Contribution of climate variability and human intervention on watershed regime based on van loon model. Iran-Water Resources Research13(1), 178-190. [In Persian]
Schaake, J.C. (1989). Climate Change and U.S. Water Resources. Pp. 177-218, In: Waggoner, P.E. (ed.), Climate to Flow, Wiley, New York.
Sneyres, R. (1990). Technical note no. 143 on the statistical analysis of time series of observation. World Meteorological Organisation, Geneva, Switzerland.
Sheikh, V., Babaei, A., & Mooshakhian, Y. (2009). Trend analysis of precipitation regime in the Gorganroud basin. Iranian Journal of Watershed Management Science and Engineering, 3(8), 29-38. dor:20.1001.1.20089554.1388.3.8.4.4 [In Persian]
Sheikh, V., Naderi, M., Bahrehmand, A., Sadoddin, A., Abedi Tourani, M., Komaki, C.B., & Ghaemi, A. (2022). Quantifying the contributions of climate change and direct human interventions to streamflow alteration in the Hableroud River using empirical approaches. Water and Soil Management and Modelling, doi:10.22098/mmws.2022.11852.1178 [In Persian]
Sheikh, V., Sadoddin, A., Ong, M., Najafinejad, A., Zare, A., Salman Mahini, A., Abdullahian, H., Barani, H., Kamkar, B., Bairam Komaki, CH., Mohammadian Behbahani, A., Abedi Sarostani, A., Eslami, A., Karamatzadeh, A., Kamyab, H., Khosravi, G., Asadi Nelivan, A., Alvandi, A., Rahmani, M., Sadeghi, F., Montazeri, M., & Haqdadi, M. (2017). Developing integrated watershed managemen plan for Hableroud river basin. Final report of research project, Iranian Forest, Rangeland, and Watershed Management Organization, 259 pages. [In Persian]
Sheikh, V., Zare Garizi, A., Alvandi, E., Asadi Nelivan, O., Khosravi, G., Saaduddin, A., & Ong, M. (2018). Collaborative site selection for the proposed solutions to manage the Hablehroud watershed. Watershed Research. 32(4), 2-18. doi:10.22092/wmej.2019.125497.1194 [In Persian]
Sorokin, L.V., & Mondello, G. (2018). Entering the new+ 2 c global warming age and a threat of world ocean expansion for sustainable economic development. Pp. 183-201, In: Climate Change, Extreme Events and Disaster Risk Reduction, Springer, Cham.
Sun, G., McNulty, S.G., Lu, J., Amatya, D.M., Liang, Y., & Kolka, R.K. (2005). Regional annual water yield from forest lands and its response to potential deforestation across the southeastern United States. Journal of Hydrology308(1-4), 258-268. doi:10.1016/j.jhydrol.2004.11.021 ‏
Tehran Regional Water Company, (2012). Improving the exploitation of the surface water of the Hableroud River and its tributaries in Tehran province. Final report of research project, 226 pages. [In Persian]
Wang, D., & Hejazi, M. (2011). Quantifying the relative contribution of the climate and direct human impacts on mean annual streamflow in the contiguous United States. Water Resources Research47(10). doi:10.1029/2010WR010283
Wu, J., Miao, C., Zhang, X., Yang, T., & Duan, Q. (2017). Detecting the quantitative hydrological response to changes in climate and human activities. Science of the Total Environment586, 328-337. doi:10.1016/j.scitotenv.2017.02.010
Xu, M., Wang, G., Wang, Z., Hu, H., Singh, D.K., & Tian, S. (2022). Temporal and spatial hydrological variations of the Yellow River in the past 60 years. Journal of Hydrology, 609, 127750. doi:10.1016/j.jhydrol.2022.127750
Yao, H., Shi, C., Shao, W., Bai, J., & Yang, H. (2015). Impacts of climate change and human activities on runoff and sediment load of the Xiliugou basin in the Upper Yellow river. Advances in Meteorology, 1-12, 481713. doi:10.1155/2015/481713
Ye, X., Zhang, Q., Liu, J., Li, X., & Xu, C.Y. (2013). Distinguishing the relative impacts of climate change and human activities on variation of streamflow in the Poyang Lake catchment, China. Journal of Hydrology494, 83-95. doi:10.1016/j.jhydrol.2013.04.036
Zhang, L., Dawes, W.R., & Walker, G.R. (2001). Response of mean annual evapotranspiration to vegetation changes at catchment scale. Water resources research37(3), 701-708. doi:10.1029/2000WR900325
Zhang, L., Hickel, K., Dawes, W.R., Chiew, F.H., Western, A.W., & Briggs, P.R. (2004). A rational function approach for estimating mean annual evapotranspiration. Water Resources Research40(2). doi:10.1029/2003WR002710
Zhao, G., Tian, P., Mu, X., Jiao, J., Wang, F., & Gao, P. (2014). Quantifying the impact of climate variability and human activities on streamflow in the middle reaches of the Yellow River basin, China. Journal of Hydrology519, 387-398. doi:10.1016/j.jhydrol.2014.07.014