世界遗产海草息地对气候变化的脆弱性
Riccardo Losciale1, Jon C Day1, Michael A Rasheed2
1College of Science and Engineering, James Cook University, Townsville, Queensland, Australia.
Global change biology
|January 26, 2024
概括
气候变化对世界遗产遗产中的海草构成高脆弱性风险,主要是由于海水温度上升和海洋热浪. 许多管理人员可能缺乏足够的能力来应对这些对这些重要的碳汇的影响.
科学领域:
- 海洋生态海洋生态学
- 气候变化科学 气候变化科学
- 保护生物学 保护生物学
背景情况:
- 海草息地是28个世界遗产遗产的关键组成部分,作为重要的碳汇,提供必要的生态系统服务.
- 气候变化对自然世界遗产遗址构成越来越大的威胁,越来越多的证据表明对海草生态系统的影响.
- 了解这些海草的脆弱性对于有效的保护和管理至关重要.
研究的目的:
- 评估世界遗产海草息地对特定气候变化压力因素的脆弱性.
- 通过基于专家的定量方法来评估这些海草的暴露,敏感性和适应能力.
- 将当前的脆弱感知与十年前的脆弱感知进行比较.
主要方法:
- 利用海草专家和现场管理人员的定量调查.
- 应用气候脆弱性指数方法来评估息地的脆弱性.
- 分析了对关键气候压力因素的暴露,敏感性和适应能力.
主要成果:
- 超过一半的世界遗产海草息地对气候变化,特别是海面温度上升和海洋热浪的高脆弱性.
- 与十年前相比,利益相关者的看法表明,人们对气候变化影响的担忧和确定性增加了.
- 预计由气候压力因素 (热量) 和人为因素 (沉积物,热化,低氧) 结合而产生的协同负面影响.
结论:
- 低适应能力是导致世界遗产海草息地高度脆弱的一个重要因素.
- 这些差异表明当前管理对气候变化影响的准备有潜在的不足.
- 该研究强调了有针对性的保护,监测和研究的必要性,证明了评估保护区脆弱性的有用框架.
相关概念视频
Global Climate Change
24.4K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
24.4K
What is Climate?
18.5K
Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.
18.5K
Threats to Biodiversity
22.3K
There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
22.3K
Responses to Drought and Flooding
10.7K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.7K
Effect of Sea Water on Concrete
234
Concrete exposed to seawater can undergo degradation like the dissolution of ettringite and gypsum, increasing the material's porosity and decreasing its strength. In contrast, the crystallization of salts within the concrete's pores can cause expansion, particularly above the waterline where evaporation occurs. Nonetheless, this expansion only happens when seawater, enabled by the concrete's permeability, manages to infiltrate the structure.
Concrete in areas between tide marks,...
Concrete in areas between tide marks,...
234
Adaptations that Reduce Water Loss
25.6K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
25.6K


