Simultaneous effects of climate and land use change on watershed hydrological processes

被引:0
作者
Talebi, Ali [1 ]
Nouri, Zahra [2 ]
Asadi, Mohammad Amin [1 ]
Ebrahimi, Babak [3 ]
机构
[1] Yazd Univ, Fac Nat Resources, Yazd, Iran
[2] Yazd Univ, Fac Nat Resources, Watershed Management, Yazd, Iran
[3] Reg Water Co Isfahan Prov, Pole Khajoo, Isfahan, Iran
关键词
downscaling; evapotranspiration; Mehrgerd Watershed; runoff; SVM; SWAT; RIVER-BASIN; FUTURE CLIMATE; UNCERTAINTY ANALYSIS; CHANGE IMPACTS; SWAT; MODELS; PRECIPITATION; SIMULATION; RESOURCES; CATCHMENT;
D O I
10.1504/IJESD.2025.10067722
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
This research aims to investigate simultaneous effects of climate change and land use change on runoff and real and potential evapotranspiration in Mehrgerd Watershed in South Western Iran. To this end, land use maps were produced for years 1987, 2002, and 2017. Then, 2032 map was predicted. Future projections of the Canadian earth system model (CanESM2) model based on representative concentration pathway 8.5 (RCP8.5) emission scenario were used. The projections were downscaled by statistical downscaling model (SDSM) to simulate future climate of the watershed during 2017-2032. Model of soil and water assessment tool (SWAT) was employed to simulate watershed's hydrological processes. R-2 and NSE for calibration were 0.73, 0.69, respectively. The values for validation were 0.71 and 0.58, respectively. The results showed the contribution of climate change to runoff and real and potential evapotranspiration was 76%, 74%, and 90%, respectively. Furthermore, the land use change contribution to the mentioned components was 24%, 26%, and 10%, respectively. Therefore, effects of climate change on runoff and real and potential evapotranspiration was more significant than that of land use change.
引用
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页码:1 / 21
页数:22
相关论文
共 51 条
[1]  
Abbaspour K.C., 2015, SWAT-CUP2: SWAT Calibration and Uncertainty Programs Version 2: a User Manual Department of Systems Analysis, Integrated Assessment and Modeling (SIAM), Eawag, P1
[2]  
Abraham T., 2018, Journal of Environment and Earth Science, V8, P81
[3]  
Amiri M. J., 2010, Journal of Environmental Science and Technology, V3, P208
[4]   Prediction of land use changes based on Land Change Modeler and attribution of changes in the water balance of Ganga basin to land use change using the SWAT model [J].
Anand, Jatin ;
Gosain, A. K. ;
Khosa, R. .
SCIENCE OF THE TOTAL ENVIRONMENT, 2018, 644 :503-519
[5]   Future climate change impact on hydrological regime of river basin using SWAT model [J].
Anand, V ;
Oinam, B. .
GLOBAL JOURNAL OF ENVIRONMENTAL SCIENCE AND MANAGEMENT-GJESM, 2019, 5 (04) :471-484
[6]   Using the Soil and Water Assessment Tool (SWAT) to assess land use impact on water resources in an East African watershed [J].
Baker, Tracy J. ;
Miller, Scott N. .
JOURNAL OF HYDROLOGY, 2013, 486 :100-111
[7]  
Bharatkar P., 2013, INT J SCI ENG RES, V4, P79
[8]   Evaluation and application of a SWAT model to assess the climate change impact on the hydrology of the Himalayan River Basin [J].
Bhatta, Binod ;
Shrestha, Sangam ;
Shrestha, Pallav K. ;
Talchabhadel, Rocky .
CATENA, 2019, 181
[9]   Characterizing Sparse Preconditioner Performance for the Support Vector Machine Kernel [J].
Chatterjee, Anirban ;
Fermoyle, Kelly ;
Raghavan, Padma .
ICCS 2010 - INTERNATIONAL CONFERENCE ON COMPUTATIONAL SCIENCE, PROCEEDINGS, 2010, 1 (01) :367-375
[10]  
Chu TW, 2004, T ASAE, V47, P1057, DOI 10.13031/2013.16579