doi: 10.18178/ijesd.2024.15.2.1473
Dynamics of TP Load in the Largest Freshwater Lake of China in the Past Decade
Hua Wang1,2,*
,
Fang Cui1,2 , , ,
- 1Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment
- 2Hohai University, Nanjing 210098, China
- Manuscript receivedJuly 14, 2023
- revisedAugust 23, 2023
- acceptedSeptember 29, 2023
- publishedApril 17, 2024
Abstract
In order to reveal the evolution of TP pollution inPoyang Lake and the driving mechanism, this paper analysesthe TP concentration in Poyang Lake during the period of2012–2022 based on Mann-Kendall test and Pearson coefficientmethod combined with exogenous influencing factors. Resultsrevealed that (1) Trends of interracial TP concentration inPoyang Lake varied significantly, with peaks of 0.115, 0.293 to0.05 mg/L in 2014 and troughs of 0.032, 0.003 to 0.002 mg/L in2019 at each lake area. However, TP in The South Lake was theopposite. The spatial distribution pattern of TP concentration inPoyang Lake showed that The Middle Lake (0.083 mg/L) >North Lake (0.069 mg/L) > South Lake (0.053 mg/L), and therewere correlations among the Middle Lake, North Lake to SouthLake. TP concentration in Middle Lake was significantly andpositively correlated with the TP concentration of Gan Jiang(r1=0.322), and TP concentration in Middle Lake and NorthLake was also significantly correlated with the TPconcentration of Rao River (r2=0.446, r3=0.537). Whereas, TPconcentration in North Lake and South Lake were less affectedby the rivers. This study thoroughly analyzed the changes in TPconcentration in Poyang Lake during the last decade to view itsspace-time distribution pattern and the driving mechanism ofmultiple factors. Research results would facilitate to betterunderstating the variation of TP concentration and supply thescientific bases for water resources management and protectionin Poyang Lake.
Keywords
- Poyang Lake
- Mann-Kendall method
- total phosphorus
- trend
- space-time distribution
How to Cite
Hua Wang, Fang Cui, Yi Wu, Jiale Li, and Yiran Zhu, "Dynamics of TP Load in the Largest Freshwater Lake of China in the Past Decade," International Journal of Environmental Science and Development, vol. 15, no. 2, pp. 97-103, 2024. https://doi.org/10.18178/ijesd.2024.15.2.1473
Copyright & License
Copyright © 2024 by the authors. 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 (CC BY 4.0).