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悬浮沉积物的动态以及敏感水域的相关环境风险评估

Yi Wu¹, Hua Wang¹, Yanqing Deng²

¹Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China; College of Environment, Hohai University, Nanjing 210098, China.

The Science of the total environment

|February 4, 2024

概括

在南山自然保护区 (NNR) 中模拟了悬浮沉积物 (SS) 动态,揭示了高季节性变化. 管理来自河流的SS输入对于保护水生生态系统和关键物种至关重要.

科学领域:

环境科学环境科学
水生生态学水生生态学
水质管理水质管理

背景情况:

悬浮沉积物 (SS) 通过吸附污染物和影响水质,影响水环境.
了解SS动态对于评估敏感地区的生态风险至关重要.

研究的目的:

为了模拟南山自然保护区 (NNR) 的SS动态.
计算与SS相关的污染物流.
在潮湿和干旱季节评估生物风险.

主要方法:

使用2D水力动力模型进行SS模拟.
分析了跨季节的SS负载变化.
量化营养和微塑料的流量.

主要成果:

在NNR的SS负载中观察到高的空间和时间变化.
甘河的SS输入对NNR的SS负载产生了重大影响 (p < 0.01).
雨季的营养和微塑料流量较高 (分别是干季的8.38倍和10.61倍).
由于水鸟的多样性和数量较高,干旱季节生物风险增加.

结论:

气候变化和污染物流动表现出显著的季节性变化.
河流SS输入是污染物运输到NNR的主要驱动因素.
管理上游的SS和污染对于NNR的生态保护至关重要.

关键词:

生物风险生物风险污染物流动是指污染物的流动.自然保护区是一个自然保护区.悬浮沉积物的悬浮沉积物悬浮沉积物负载的悬浮沉积物负载

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