通过对河流流域的综合效益评估,优化土壤保护.
Siqi Sun1,2, Yihe Lü1,2, Xiaoming Feng1,2
1State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing, 100085, China.
Environmental science and ecotechnology
|October 29, 2024
概括
珍视土壤保护是水安全的关键. 这项研究引入了一个框架来量化现场和现场之外的好处,表明现场之外的服务对黄河等大型流域至关重要.
科学领域:
- 环境科学 环境科学
- 水资源管理 水资源管理
- 生态系统服务生态系统服务
背景情况:
- 由于水蚀造成的土地退化威胁到水资源安全和生态系统的稳定.
- 有效的土壤保护策略需要对现场和现场以外的好处进行定量评估.
- 现有的方法往往无法捕捉到结合的土壤保护服务的全部经济价值.
研究的目的:
- 开发一个全面的框架,以货币化土壤保护服务流.
- 评估现场和现场以外的土壤保护措施的有效性.
- 评估黄河流域 (YRB) 土壤保护的经济价值.
主要方法:
- 开发了一个成本回避算法框架.
- 与保持土壤肥力相关的计算好处.
- 评估了疏成本的降低和非点源污染的缓解.
主要成果:
- 超过一半的YRB主要依赖于场外的土壤保护服务.
- 对30%的重点地区进行战略性提升,可以将土壤保护供应增加64.2%.
- 货币估值显示,现场和现场以外的利益都有显著的贡献.
结论:
- 场外的土壤保护服务在大型河流流域中发挥着至关重要的作用.
- 了解现场和现场之外的综合益处对于有效的保护至关重要.
- 确定优先领域可以优化YRB的土壤保护投资.
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