Attribution of Changes in Streamflow to Climate Change and Land Cover Change in Yangtze River Source Region, China
1
Key Laboratory of Mountain Surface Process and Ecological Regulations, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China
2
University of Chinese Academy of Sciences, Beijing 100049, China
3
State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu 610065, China
4
State Key Laboratory of Hydrology Water Resources and Hydraulic Engineering, College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China
5
Water Engineering and Management Group, Faculty of Engineering Technology, University of Twente, 7522 Enschede, The Netherlands
6
Faculty of Forestry, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
7
Department of Agricultural Extension and Rural Development, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
8
Department of Civil Engineering, National University of Computer and Emerging Sciences, Foundation for Advancement of Science and Technology, Lahore 54000, Pakistan
9
School of Environmental and Municipal Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China
*
Author to whom correspondence should be addressed.
Academic Editor: Ian Prosser
Water 2022, 14(2), 259; https://doi.org/10.3390/w14020259
Received: 16 November 2021
/
Revised: 20 December 2021
/
Accepted: 4 January 2022
/
Published: 17 January 2022
(This article belongs to the Section Hydrology)
The quantitative attribution of changes in streamflow to climate change (CC) and land cover change (LCC) for the Yangtze River Source Region (YRSR), China, was assessed. We used a combination of the SWAT model along with the statistical technique one factor at a time (OFAT) and innovative trend analysis (ITA) to achieve the study objectives. The climate and hydrology data from 1961 to 2016 and land-cover maps of 5 years’ difference from 1985 to 2015 were used. The model was calibrated (1964–1989) using a land-cover map of 1985 and validated for 1990–2016. This validated model was further validated for all other land-cover maps used in this study. The SWAT model simulation showed that streamflow had been significantly influenced by CC compared to LCC using land-cover maps of 1985–1990, 1990–1995. However, the SWAT model simulations did not result in further changes in streamflow for land cover maps of 2000–2005, 2005–2010, and 2010–2015 because there have not been any significant changes in land cover after 2000 while the main contributing factor was climate change. The SWAT model simulations showed that the main driver of changes in streamflow in the Yangtze River Source Region is climate change. This study shows that the individual impacts are more critical than combined impacts for designing hydraulic structures, water resources planning and management, and decision-making policies at the regional/basin scale.
View Full-Text
Keywords:
climate change; innovative trend analysis; land cover change; SWAT model; streamflow; Yangtze River
▼
Show Figures
Figure 1
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
MDPI and ACS Style
Ahmed, N.; Wang, G.; Lü, H.; Booij, M.J.; Marhaento, H.; Prodhan, F.A.; Ali, S.; Ali Imran, M. Attribution of Changes in Streamflow to Climate Change and Land Cover Change in Yangtze River Source Region, China. Water 2022, 14, 259. https://doi.org/10.3390/w14020259
AMA Style
Ahmed N, Wang G, Lü H, Booij MJ, Marhaento H, Prodhan FA, Ali S, Ali Imran M. Attribution of Changes in Streamflow to Climate Change and Land Cover Change in Yangtze River Source Region, China. Water. 2022; 14(2):259. https://doi.org/10.3390/w14020259
Chicago/Turabian StyleAhmed, Naveed, Genxu Wang, Haishen Lü, Martijn J. Booij, Hero Marhaento, Foyez A. Prodhan, Shahid Ali, and Muhammad Ali Imran. 2022. "Attribution of Changes in Streamflow to Climate Change and Land Cover Change in Yangtze River Source Region, China" Water 14, no. 2: 259. https://doi.org/10.3390/w14020259
Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.
