气候变化领域集成服务门户(CCPortal): Variations in the streamflow of the Nierji Reservoir Basin and quantification of the influencing factors

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DOI	10.2166/wcc.2024.652
	Variations in the streamflow of the Nierji Reservoir Basin and quantification of the influencing factors
	Han, Chunxu; Li, Fengping; Li, Xiaolan; Wang, Sheng; Xu, Yanhua
发表日期	2024
ISSN	2040-2244
EISSN	2408-9354
英文摘要	Nierji Reservoir is the largest and most important water conservancy project in the Nenjiang River Basin. A thorough understanding of variations in streamflow and the driving factors of the Nierji Reservoir Basin (NERB) is crucial, but there are still gaps. In this paper, the annual streamflow data of Nierji Reservoir from 1898 to 2013 were applied to detect the changing trend and abruptions using the Mann-Kendall method. Additionally, a Back Propagation-Artificial Neural Network (BP-ANN) model was developed to explore the relationships between the streamflow and its influencing factors and further quantify the relative contribution of each factor to the streamflow change. The results revealed that the annual streamflow of NERB significantly increased from 1898 to 2013 but declined during 1988-2013. Human activities were found to be the primary driver of streamflow decrease during 1988-2013, accounting for nearly 75% of the total change. Specifically, GDP had the largest influence, contributing 32% to the overall variation. Forest area, precipitation, and cultivated area had smaller contributions of 25, 23, and 18%, respectively. Temperature was found to have the least impact, with a relative contribution of 2%. This study provides valuable insights into water resources management in the Nenjiang River Basin, benefiting both agriculture and ecology.
英文关键词	BP-ANN model; influencing factors; Mann-Kendall method; Nierji Reservoir; streamflow
语种	英语
WOS研究方向	Water Resources
WOS类目	Water Resources
WOS记录号	WOS:001185162800001
来源期刊	JOURNAL OF WATER AND CLIMATE CHANGE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/296507
作者单位	Jilin University; Jilin University; Jilin University; Changchun Institute Technology
推荐引用方式 GB/T 7714	Han, Chunxu,Li, Fengping,Li, Xiaolan,et al. Variations in the streamflow of the Nierji Reservoir Basin and quantification of the influencing factors[J],2024.
APA	Han, Chunxu,Li, Fengping,Li, Xiaolan,Wang, Sheng,&Xu, Yanhua.(2024).Variations in the streamflow of the Nierji Reservoir Basin and quantification of the influencing factors.JOURNAL OF WATER AND CLIMATE CHANGE.
MLA	Han, Chunxu,et al."Variations in the streamflow of the Nierji Reservoir Basin and quantification of the influencing factors".JOURNAL OF WATER AND CLIMATE CHANGE (2024).