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Assessing Temperature Change Impact in the Wake of Ongoing Land Use Change: A Case Study at Lake Dianshan

Author

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  • Hua Liu

    (State Key Lab of Pollution Control and Resource Reuse (Tongji University), College of Environmental Sciences and Engineering, Tongji University, Shanghai 200092, China)

  • Xuefei Zhou

    (Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai 200092, China)

Abstract

Climate change exerts both direct and indirect influences on the eutrophication of surface water ecosystems in various ways. This study aimed to evaluate the impact of temperature fluctuations on trophic levels through various interdisciplinary coupling analysis methods after land use change, which including water and sediment sample analysis, hydraulic model, remote sensing, and historic data analysis. For the historical analysis, six satellite images of Lake Dianshan were examined to assess algal bloom occurrences and the coverage of Eichhornia crassipes from 2013 to 2023. The correlation between trophic indicators and temperature was analyzed using statistical methods. For the monthly analysis, a total of 27 sediment samples and 54 water samples collected from Lake Dianshan were assessed to determine how seasonal temperature variations influence eutrophication status. The trophic indicators have higher concentration at inlet sampling sites compared to outlet sites, which validated the potential external pollution source. The trophic level of Lake Dianshan is influenced not only by climate change but also significantly by urban human activities. The management of eutrophication has substantially improved the water quality of Lake Dianshan over the past few decades. Furthermore, increasing temperatures demonstrate a positive correlation with the proliferation of cyanobacteria, particularly in urban areas.

Suggested Citation

  • Hua Liu & Xuefei Zhou, 2024. "Assessing Temperature Change Impact in the Wake of Ongoing Land Use Change: A Case Study at Lake Dianshan," Sustainability, MDPI, vol. 17(1), pages 1-13, December.
    • Handle: RePEc:gam:jsusta:v:17:y:2024:i:1:p:28-:d:1551923
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    References listed on IDEAS

    as
    1. Brias, Antoine & Mathias, Jean-Denis & Deffuant, Guillaume, 2018. "Inter-annual rainfall variability may foster lake regime shifts: An example from Lake Bourget in France," Ecological Modelling, Elsevier, vol. 389(C), pages 11-18.
    2. Thomas A. Davidson & Joachim Audet & Erik Jeppesen & Frank Landkildehus & Torben L. Lauridsen & Martin Søndergaard & Jari Syväranta, 2018. "Synergy between nutrients and warming enhances methane ebullition from experimental lakes," Nature Climate Change, Nature, vol. 8(2), pages 156-160, February.
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