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纵向河流综合 (LSS) 监测,以评估恢复的河流中的水质

Joseph T Malin^1,2, Sujay S Kaushal³, Paul M Mayer⁴

¹Department of Geology & Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD, 20742, USA. joemalin@umd.edu.

Environmental monitoring and assessment

|April 9, 2024

概括

纵向流综合学 (LSS) 监测有效地跟踪恢复流中的水化学变化,揭示了在米到千米尺度上的营养素,盐和金属水平的局部改善. 这种方法有助于评估城市流综合征恢复的有效性.

科学领域:

环境科学环境科学
水文学的水文学
水的质量水的质量

背景情况:

城市化增加了不透水的表面,导致高峰流量和退化的河流健康,被称为城市河流综合征.
目前的修复策略重点是河流-洪平地重新连接和下水管理,但它们的有效性和监测方法需要进一步调查.

研究的目的:

评估纵向流综合学 (LSS) 监测对检测水化学变化的效用,以应对流恢复.
确定恢复工作改善流水质量的空间规模.

主要方法:

在五个流域中采用了纵向流同光学 (LSS) 监测,不同的流域-洪平重新连接.
分析了水的化学成分 (碳,营养物质,盐离子,金属) 沿着溪流的流道进行分析.
使用统计方法,包括主要成分分析,来评估化学混合物.

主要成果:

在LSS监测中,在米到千米的尺度上,在恢复的河流段内,成功检测到营养素,盐和金属的显著下降.
没有恢复的河流显示,在不透气的覆盖下,盐离子度增加.
与统计分析相结合的LSS监测揭示了化学混合物对修复项目的局部反应.

结论:

河流水位监测是评估河流恢复项目的有效性的一种可行的工具,特别是在地方范围内.
恢复工作可以通过减少营养,盐和金属度来改善水质.
恢复对化学混合物的影响在局部尺度上最明显,在更大的流域尺度上或在风暴事件期间可以掩盖.

关键词:

淡水的盐化是淡水的盐化.营养污染营养污染营养污染恢复恢复恢复恢复城市流动的城市流.评估水质水质的评估.

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