在明尼苏达河流域的成本效益水质改善的综合评估:结合陈述的偏好和模拟优化方法
Zhengxin Lang1, Sergey Rabotyagov2, Amy T Hansen3
1School of Environmental and Forest Sciences, University of Washington, Seattle, WA, USA.
Environmental management
|May 9, 2025
概括
本研究为农民确定了具有成本效益的保护战略,以减少流域污染. 湿地恢复被强调为一个重要的和沉积物减少的关键方法.
科学领域:
- 农业经济学 农业经济学
- 环境科学 环境科学
- 流域管理 流域管理
背景情况:
- 自愿激励计划是美国可持续性农业政策的关键.
- 提高环境成果和生态系统服务是政策目标之一.
- 需要具有成本效益的战略来减少流域级污染.
研究的目的:
- 确定用于酸盐和沉积物减少的成本有效策略.
- 分析农民接受 (WTA) 激励计划的意愿.
- 通过综合建模,为流域规划提供信息.
主要方法:
- 经济学见解与生物物理建模相结合.
- 关于明尼苏达河流盆地农民对WTA进行保护实践的调查数据.
- 混合逻辑模型来分析WTA异质性.
主要成果:
- 经济和个人因素影响农民WTA的显著异质性.
- 河流湿地恢复被确定为一个具有成本效益和影响力的战略.
- 潜在的大量 (43%) 和沉积物 (82%) 减少每年少于1000万美元.
结论:
- 有针对性的保护投资,特别是湿地恢复,为环境带来了显著的好处.
- 多目标优化框架对于在流域规划中平衡成本和收益至关重要.
- 以较低的成本实现大量的沉积物减少是可能的,尽管减少可能有限.
相关概念视频
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
28
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
28
Typical Model Studies
159
Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
159
Modeling and Similitude
127
Scaled modeling is a fundamental technique in engineering, enabling the study of large and complex systems by creating smaller, manageable replicas that recreate critical characteristics of the original. In hydrology and civil infrastructure, for example, scaled models of dams help analyze water flow, turbulence, and pressure. This method allows for accurate predictions of real-world behavior within a controlled environment, significantly reducing the cost and time involved in full-scale...
127
Production Efficiency
16.7K
Net production efficiency (NPE) is the efficiency at which organisms assimilate energy into biomass for the next trophic level. Due to low metabolic rates and less energy spent on thermoregulatory processes, the NPE of ectotherms (cold-blooded animals) is 10 times higher than endotherms (warm-blooded animals).
16.7K


