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Watershed Planning within a Quantitative Scenario Analysis Framework
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不一致的监管映射暗中威胁着河流和溪流
Mathis Loïc Messager1,2, Hervé Pella1, Thibault Datry1
1National Research Institute for Agriculture, Food, and Environment (INRAE), UR RiverLy, Centre Lyon-Grenoble Auvergne-Rhône-Alpes, 5 rue de la Doua, Villeurbanne 69100, France.
Environmental science & technology
|September 19, 2024
概括
监管地图将法国四分之一的水道排除在法律保护之外,不成比例地影响了头水流. 这种排斥威胁到淡水生态系统和重要服务,突出了全球水法实施的潜在问题.
科学领域:
- 环境法 环境法 环境法
- 淡水生态学 淡水生态
- 保护科学 保护科学
背景情况:
- 环境法旨在保护水道,但其有效性取决于水体的法律定义和绘制.
- 将支流和头水排除在保护之外,可能会分裂河流网络并危及生态系统服务.
- 在全球范围内,特别是美国以外的地区,对水道保护的监管绘制实践的研究不足.
研究的目的:
- 分析监管地图对法定保护河流网络在法国的范围的影响.
- 确定哪些水流类型不成比例地被排除在法律保护之外.
- 评估这些排除对淡水生物多样性和生态系统服务的影响.
主要方法:
- 编制了第一个根据"水法"保护的法国水流的综合地图.
- 法律保护的水道与先前绘制的水文网络的比较.
- 排除水流段的定量分析,重点关注水源和非常年溪流.
主要成果:
- 法国大约25%的以前绘制的水文段被排除在法律水保护之外.
- 与它们的普遍性 (67%的网络) 相比,源泉和非常年流段被不成比例地排除 (28%的排除率).
- 在法国各地观察到保护的淡水生态系统的范围存在显著的地理差异.
结论:
- 监管地图显著限制了水保护法律的覆盖范围,使大量河流网络变得脆弱.
- 不成比例的排斥源水和非常年溪流对淡水生物多样性和生态系统服务构成相当大的威胁.
- 类似的监管映射和法律解释问题可能在其他国家普遍存在,需要对水保护框架进行审查.
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