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对亚热带城市河流有效水质评估指数的调整

Mengyue Zhang¹, Mingqiao Yu¹, Sen Ding²

¹State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, China.

Environmental management

|August 1, 2025

概括

修订后的生物指数准确评估城市河流的健康状况. 调整的平均分数 (ASPT) 与水质指数 (WQI) 的相关性更强,为管理危的河流生态系统提供了可靠的工具.

科学领域:

生态生态学生态生态学
环境科学环境科学
水生生物学水生生物学

背景情况:

城市河流面临人类干扰的重大威胁,影响其生态功能.
有效的生物评估工具对于管理和恢复这些临灭绝的生态系统至关重要,特别是在发展中国家.
现有的生物评估指数可能需要进行本地校准,以准确反映特定环境的条件,如亚热带城市河流.

研究的目的:

在一个亚热带城市河流中对宏观无脊椎动物的家庭敏感度值 (FSV) 进行修订.
使用本地数据调整生物监测工作组 (BMWP) 和平均分数每种种类型 (ASPT) 指数.
与原始指数相比,评估调整后生物指数在评估水质方面的有效性.

主要方法:

宏观无脊椎动物季节性地从珍珠河三角洲的一个城市河流中收集.
家庭敏感度值 (FSV) 根据当地生物和非生物数据重新校准.
分析了原始和调整的生物指数 (BMWP,ASPT) 和水质指数 (WQI) 之间的关系.

主要成果:

对24个家族的修订FSV显示下降趋势,在干旱季节值较低,表明宏无脊椎动物耐受性值.
与原来的ASPT相比,调整后的ASPT在干旱和雨季的WQI之间显示出更强的线性相关性.
调整后的BMWP仅在雨季显示出与WQI的显著相关性,这表明调整后的ASPT是一个更强大的水质指标.

结论:

调整的生物指数,特别是ASPT,为亚热带城市河流的生物评估提供了可靠的工具.
修订后的指数可以更准确地识别污染水平,并为有针对性的管理和恢复策略提供信息.
这项研究强调了当地校准对生物评估工具在各种城市河流环境中的重要性.

关键词:

在 ASPT ASPT 中.这就是为什么宝马P BMWP BMWP.生物适应性生物适应性生物监测生物监测宏观无脊椎动物在城市河流城市河流

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