干旱区生态环境知识资源中心(Arid): Development of a comprehensive framework for quantifying the impacts of climate change and human activities on river hydrological health variation

Arid

DOI	10.1016/j.jhydrol.2021.126566
	Development of a comprehensive framework for quantifying the impacts of climate change and human activities on river hydrological health variation
	Jiang, Shanhu; Zhou, Le; Ren, Liliang; Wang, Menghao; Xu, Chong-Yu; Yuan, Fei; Liu, Yi; Yang, Xiaoli; Ding, Yu
通讯作者	Ren, LL (corresponding author), Hohai Univ, State Key Lab Hydrol Water Resources & Hydraul En, Nanjing 210098, Peoples R China.
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2021
卷号	600
英文摘要	Climate change and human activities have together altered the river hydrological regime and consequently threatened the health of river ecosystems. Quantifying the impact of climate change and human activities on river hydrological health regimes is essential for water resource management and river ecology protection. Although previous studies have analysed the hydrologic alterations using some indicators, separating effects of climate change and human activities on river hydrological health is needed for developing adaptive measures to protect the ecosystem of river basins. In this study, a comprehensive assessment framework for quantifying climatic and anthropogenic influences on river hydrological health variation was proposed. The framework consists of the following steps: (1) the reconstruction of natural river streamflow using the variable infiltration capacity (VIC) hydrological model, (2) calculation of river hydrological health through the ecological flow threshold method, and (3) quantification of the impacts of climate change and human activities on river hydrological health using the 'observed-simulated' comparison approach. The semi-arid Laohahe Basin in northern China, which consists of three human-influenced catchments (Taipingzhuang, Chifeng, and Xinglongpo) and one natural catchment (Xiquan), was selected as the case study area. The case study demonstrated that the proposed procedure is efficient in quantifying climatic and anthropogenic influences on river hydrological health. The results revealed that the hydrological health level has significantly declined in the three human-influenced catchments for the human-influenced period (1980-2016), particularly in the 2000 s and 2010 s, where it degraded much more severely. Whereas, the relatively adequate rainfall in the 1990 s maintained the river hydrological health at a good status. The quantitative evaluation showed that human activities were the main driving factors for the hydrological health degradation during the whole human-influenced period, with contributions of 80.8%, 91.9%, and 86.0% for the Taipingzhuang, Chifeng, and Xinglongpo catchments, respectively. Widespread artificial water withdrawal and reservoir operation were the two crucial human activities that caused the degradation of river hydrological health for the studied catchment. The proposed procedure and findings of this study not only help in deeper understanding of the evolutionary characteristics and driving mechanisms of river hydrological health in a changing environment in general, but also provide scientific basis for local water resources management and river ecosystems protection.
英文关键词	Ecological flow Hydrological health Climate change Human activities Impact assessment
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000685246900058
WOS关键词	ECOLOGICAL INSTREAM FLOW ; ENVIRONMENTAL FLOWS ; SEMIARID BASIN ; BLUE WATER ; LAND-USE ; MODEL ; REQUIREMENTS ; INDICATORS ; STREAMS ; RUNOFF
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
来源机构	河海大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368483
作者单位	[Jiang, Shanhu; Ren, Liliang; Wang, Menghao] Hohai Univ, State Key Lab Hydrol Water Resources & Hydraul En, Nanjing 210098, Peoples R China; [Jiang, Shanhu; Zhou, Le; Ren, Liliang; Wang, Menghao; Yuan, Fei; Liu, Yi; Yang, Xiaoli; Ding, Yu] Hohai Univ, Coll Hydrol & Water Resources, Nanjing 210098, Peoples R China; [Xu, Chong-Yu] Univ Oslo, Dept Geosci, Oslo, Norway
推荐引用方式 GB/T 7714	Jiang, Shanhu,Zhou, Le,Ren, Liliang,et al. Development of a comprehensive framework for quantifying the impacts of climate change and human activities on river hydrological health variation[J]. 河海大学,2021,600.
APA	Jiang, Shanhu.,Zhou, Le.,Ren, Liliang.,Wang, Menghao.,Xu, Chong-Yu.,...&Ding, Yu.(2021).Development of a comprehensive framework for quantifying the impacts of climate change and human activities on river hydrological health variation.JOURNAL OF HYDROLOGY,600.
MLA	Jiang, Shanhu,et al."Development of a comprehensive framework for quantifying the impacts of climate change and human activities on river hydrological health variation".JOURNAL OF HYDROLOGY 600(2021).