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淡水宏观无脊椎动物群体恢复潜力的空间变化:朝着空间定义的群体对化学品的脆弱性迈进
Ruoyu Liang1, Lorraine Maltby1
1School of Biosciences, The University of Sheffield, Alfred Denny Building, Western Bank, S10 2TN Sheffield, United Kingdom.
The Science of the total environment
|November 8, 2023
概括
淡水生物多样性对化学污染的脆弱性是空间依赖的. 恢复潜力可以减轻风险,特别是对于敏感的宏无脊椎动物群体,突出了河流类型和景观因素的重要性.
科学领域:
- 环境科学 环境科学
- 生态生态学 生态生态学
- 保护生物学 保护生物学
背景情况:
- 淡水生物多样性面临着化学压力因素的威胁.
- 生态恢复潜力的空间变化至关重要,但未被充分探索.
- 组装脆弱性取决于耐力和从化学压力中恢复.
研究的目的:
- 调查宏无脊椎动物群体对化学压力因素的脆弱性的空间依赖.
- 评估回收潜力如何影响化学风险减轻.
- 确定空间定义化学风险评估的生态场景.
主要方法:
- 使用特征信息和景观因素对3307个宏无脊椎动物组合的量化恢复潜力.
- 评估了对18种不同化学品的脆弱性.
- 跨不同河流类型和地理位置的相关恢复潜力和敏感性.
主要成果:
- 对化学污染的脆弱性取决于空间,受河流类型和景观的影响.
- 中高处有小流域的状河流中的汇集显示了最低的恢复潜力.
- 更高的灵敏度往往与更高的回收潜力相关,降低了整体脆弱性,特别是对金属.
- 小流域河流最脆弱;英格兰西部的杀虫剂脆弱性很高,中陆河流的金属脆弱性很高.
结论:
- 空间背景对于理解化学污染造成的淡水生物多样性风险至关重要.
- 景观因素和分类学组成影响集群恢复能力.
- 该研究为淡水生态系统的空间定义化学风险评估提供了一个框架.
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