相关实验视频
Updated: May 20, 2025

12:44
Watershed Planning within a Quantitative Scenario Analysis Framework
Published on: July 24, 2016
7.9K
保护海洋保护区免受累积影响:方法,最佳实践和应用的审查
Cathryn C Murray1, Anya Dunham2, Emily Rubidge3
1Institute of Ocean Sciences, Fisheries and Oceans Canada, 9860 West Saanich Road, Sidney, BC, Canada. Cathryn.Murray@dfo-mpo.gc.ca.
Environmental management
|March 25, 2025
概括
海洋保护区 (MPA) 需要考虑人类活动的累积影响. 当前的管理层往往忽视了这些影响,阻碍了保护的有效性.
科学领域:
- 海洋保护科学 海洋保护科学
- 生态系统管理生态系统管理
- 环境影响评估环境影响评估
背景情况:
- 海洋保护区 (MPA) 对海洋生物多样性和生态系统功能至关重要.
- 人类活动的增加需要考虑MPA有效性的累积影响.
- 由于评估和实施的复杂性,将累积影响纳入MPA管理具有挑战性.
研究的目的:
- 审查在MPA管理中对累积效应的总体考虑.
- 评估MPA环境中累积效应的现有知识和应用.
- 提出一个框架,将累积效应纳入MPA指定和自适应管理.
主要方法:
- 对646个全球MPA管理计划进行系统审查.
- 关于MPA中的累积影响的初级和灰色文献的文献综述.
- 对累积效应的分析 项目步骤:范围,评估和决策.
主要成果:
- 36%的MPA管理计划缺乏与累积效应相关的术语.
- 很少有累积效应项目完全整合了所有步骤 (范围,评估,决策).
- 决策很少被纳入累积效应评估项目中,尽管方法上的进步.
结论:
- 目前的MPA管理往往未能充分解决累积影响.
- 在累积影响评估理论和在MPA中的实际应用之间存在很大的差距.
- 拟议的框架可以将累积效应嵌入到MPA指定和适应性管理中,以改善决策.
相关概念视频
Sustainable Development
13.1K
As the human population continues to grow and use resources, we must be mindful of our planet’s natural limits. Sustainable development provides a pathway to maintain and improve human life now while also ensuring that future generations will have the resources that they need. The long-term success of sustainability efforts rests on understanding the interplay between human actions and ecological systems.
13.1K
Conservation of Declining Populations
9.6K
Conservation of declining population focuses on ways of detecting, diagnosing, and halting a population decline. The approach uses methods to prevent populations from going extinct.
9.6K
Keystone Species
21.5K
Measures of species biodiversity, such as richness (i.e., the number of species present) and evenness (i.e., their relative abundance), describe an ecological community’s structure. Many factors affect community structure, including abiotic factors (e.g., sunlight and nutrients), disturbances (e.g., fire or flood), species interactions (e.g., predation or competition), and chance events (e.g., foreign species invasion). Certain species—such as keystone species—also play a...
21.5K
What is Conservation Biology?
18.3K
Conservation biology is a scientific field that focuses on the preservation of biodiversity in order to protect ecosystems while meeting the needs of the human population. Humans require properly functioning ecosystems to maintain our supply of natural resources, including food, medicines, and building materials.
18.3K
Habitat Fragmentation
17.3K
Habitat fragmentation describes the division of a more extensive, continuous habitat into smaller, discontinuous areas. Human activities such as land conversion, as well as slower geological processes leading to changes in the physical environment, are the two leading causes of habitat fragmentation. The fragmentation process typically follows the same steps: perforation, dissection, fragmentation, shrinkage, and attrition.
17.3K
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
34
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...
34

