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Open AccessArticle

Water Regime Evolution of Large Seasonal Lakes: Indicators for Characterization and an Application in Poyang Lake, China

1
College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China
2
Changjiang River Scientific Research Institute, Changjiang Water Resources Commission, Wuhan 430015, China
3
Bureau of Hydrology, Changjiang Water Resources Commission, Wuhan 430012, China
4
International River Research Centre, Hohai University, Nanjing 210098, China
5
School of Earth Sciences and Engineering, Nanjing University, Nanjing 210093, China
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2018, 15(11), 2598; https://doi.org/10.3390/ijerph15112598
Received: 9 October 2018 / Revised: 6 November 2018 / Accepted: 18 November 2018 / Published: 21 November 2018
(This article belongs to the Section Environmental Science and Engineering)
Impacted by ongoing climate change and anthropogenic activities, large seasonal lakes experience water regime evolution, which raises challenges for the management of water resources and environment. The water regime evolution refers to the spatial and temporal alterations in the hydrological features of lakes. Characterizing the lake water regime and its alteration may help policymakers design effective adaption strategies. Therefore, total 47 hydrological indicators were proposed, considering intra-annual fluctuations, flood and drought features, and rate and frequency of water level variations. Combined with Mann-Kendall algorithm and Sen’s slope, the indicators were applied in Poyang Lake, a typically large seasonal lake in China, as a case study. The results revealed temporal and spatial variations in different hydrological indicators. The most dramatic alteration was the water level decline in October and November over the entire study phase, especially over the past 30 years. This was an urgent environmental problem that Poyang Lake faced, partially caused by the increased hydraulic gradient between southern and northern lake. It could trigger the drought occurring earlier, prolong the drought duration, and impair the wetland ecosystem. Environmental water requirements of both Poyang Lake and Yangtze River were suggested for regional sustainable development. The application in Poyang Lake showed the practicability and reliability of the indicators, which are applicable in international seasonal lakes. The series of indicators can be used in whole or in part, determined by the ecohydrological characters of a specific lake and the research objectives. View Full-Text
Keywords: seasonal lakes; water regime; indicators; evolution; spatio-temporal variations; environmental problem; Poyang Lake seasonal lakes; water regime; indicators; evolution; spatio-temporal variations; environmental problem; Poyang Lake
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MDPI and ACS Style

Huang, F.; Yan, B.; Zhang, X.; Zhao, D.; Guo, L.; Wang, Y.; Xia, Z. Water Regime Evolution of Large Seasonal Lakes: Indicators for Characterization and an Application in Poyang Lake, China. Int. J. Environ. Res. Public Health 2018, 15, 2598. https://doi.org/10.3390/ijerph15112598

AMA Style

Huang F, Yan B, Zhang X, Zhao D, Guo L, Wang Y, Xia Z. Water Regime Evolution of Large Seasonal Lakes: Indicators for Characterization and an Application in Poyang Lake, China. International Journal of Environmental Research and Public Health. 2018; 15(11):2598. https://doi.org/10.3390/ijerph15112598

Chicago/Turabian Style

Huang, Feng; Yan, Bo; Zhang, Xiao; Zhao, Dayong; Guo, Lidan; Wang, Yuankun; Xia, Ziqiang. 2018. "Water Regime Evolution of Large Seasonal Lakes: Indicators for Characterization and an Application in Poyang Lake, China" Int. J. Environ. Res. Public Health 15, no. 11: 2598. https://doi.org/10.3390/ijerph15112598

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