ORIGINAL RESEARCH
Analysis of Water-Sand Changes and Influencing Factors in the Ganjiang River Basin from 1958-2019
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1
Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education, School of Geography & Environment, Jiangxi Normal University, Nanchang, Jiangxi, 330022, China
 
2
College of Geographic Science and Tourism, Xinjiang Normal University 830054, China
 
3
Hydrology and Water Resources Monitoring Center for Ganjiang River Upstream, Ganzhou 341000, China
 
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State Key Laboratory of Hydraulic Engineering Simulation and Safety, School of Civil Engineering, Tianjin University, Tianjin, 300072, China
 
5
State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing, 100044, China
 
These authors had equal contribution to this work
 
 
Submission date: 2023-05-30
 
 
Final revision date: 2023-08-08
 
 
Acceptance date: 2023-10-24
 
 
Online publication date: 2024-01-05
 
 
Publication date: 2024-02-09
 
 
Corresponding author
Guihua Liu   

Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education, School of Geography & Environment, Jiangxi Normal University, Nanchang, Jiangxi, 330022, China
 
 
Xinchen Gu   

State Key Laboratory of Hydraulic Engineering Simulation and Safety, School of Civil Engineering, Tianjin University, Tianjin, 300072, China
 
 
Pol. J. Environ. Stud. 2024;33(2):1949-1964
 
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ABSTRACT
Understanding historical changes of water and sand characteristics in the Ganjiang River basin and their influencing factors is critical task for ecological construction, water resources management, and human production and life in the basin. We here used Mann-Kendall and sliding t-tests to analyze the annual runoff and annual sand transport in the basin based on data from Ganjiang River hydrological stations from 1958 to 2019. Our results show that: (1) the interannual variation of runoff in the Ganjiang River basin from 1958 to 2019 is significant, alternating between flat, dry, and abundant water conditions, with an abrupt change occurring in 1990 at all stations. (2) The annual sand transport at all stations showed a significant decrease, being most significant at Waizhou and Ji'an stations. Abrupt changes in the amount of sand transported at four upstream stations, Ji'an Station, and Waizhou Station were seen during 2002, 1994, and 1997, respectively. (3) Sand transport in the basin varies with runoff, and the two are highly correlated. Factors such as climate change and human activities can affect water and sand changes in the Ganjiang River basin, which requires a thorough understanding of how climate change may impact ecological protection and the strengthening water resources management.
eISSN:2083-5906
ISSN:1230-1485
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