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相关概念视频

Ecological Disturbance02:26

Ecological Disturbance

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An ecological disturbance is a temporary disruption in the environment resulting from abiotic, biotic, or anthropogenic factors, causing a pronounced change in an ecosystem. The impact of an ecological disturbance, which can depend on its intensity, frequency, and spatial distribution, plays a significant role in shaping the species diversity within the ecosystem.
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What is an Ecosystem?01:17

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Overview
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Bioremediation00:46

Bioremediation

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Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
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Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
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Ecological Succession02:17

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Ecological succession is influenced by the processes of facilitation, inhibition, and toleration. Facilitation occurs when early successional species create more favorable ecological conditions for subsequent species, such as enhanced nutrient, water, or light availability. In contrast, inhibition happens when early successional species create unfavorable ecological conditions for potential successive species, such as limiting resource availability. In some cases, later successional species...
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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...
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相关实验视频

Updated: Dec 5, 2025

Field Collection and Laboratory Maintenance of Canopy-Forming Giant Kelp to Facilitate Restoration
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Field Collection and Laboratory Maintenance of Canopy-Forming Giant Kelp to Facilitate Restoration

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全球生态系统恢复重点地区

Bernardo B N Strassburg1,2,3,4, Alvaro Iribarrem5,6, Hawthorne L Beyer7

  • 1Rio Conservation and Sustainability Science Centre, Department of Geography and the Environment, Pontifical Catholic University, Rio de Janeiro, Brazil. b.strassburg@iis-rio.org.

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|October 15, 2020
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概括

生态系统的恢复对生物多样性和气候至关重要. 确定重建的优先区域可以防止灭绝,并封存大量的二氧化碳 (CO2).

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Watershed Planning within a Quantitative Scenario Analysis Framework
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科学领域:

  • 生态学
  • 环境科学
  • 保护生物学

背景情况:

  • 生态系统恢复对于生物多样性保护和气候稳定至关重要.
  • 全球恢复目标存在,但没有确定考虑利益和成本的优先领域.

研究的目的:

  • 开发和应用多标准优化方法,以确定生态系统恢复的全球优先领域.
  • 估计这些优先领域的修复所带来的收益和成本.

主要方法:

  • 开发并应用了一种多标准优化方法.
  • 分析覆盖了所有陆地生物群,以确定重点恢复区域.
  • 估计了利益 (生物多样性,碳封存) 和成本.

主要成果:

  • 在确定优先区域恢复15%的土地可以防止60%的预期灭绝.
  • 这种恢复工作可以封存299千兆二氧化碳,相当于工业革命后大气增加的30%.
  • 使用多个标准的优化空间分配可以提高成本效益高达13倍.

结论:

  • 生态系统恢复为应对全球生物多样性和气候挑战做出了重大贡献.
  • 为了最大限度地提高效益和成本效益, 确定和优先考虑修复区域是必不可少的.
  • 为了实现多种利益,必须在多种生物群中协同追求恢复目标.