通过火灾避难解决保护冲突:将景观弹性融入森林管理中
Damon B Lesmeister1, Raymond J Davis2, Jeremy T Rockweit3
1Pacific Northwest Research Station, USDA Forest Service, Corvallis, OR, 97331, USA.
Journal of environmental management
|August 15, 2025
概括
消防避难所可以通过保护现有息地和指导火灾易发森林的恢复来帮助保护北方斑点猫头 (Strix occidentalis caurina). 这种方法平衡了生物多样性保护与减少野火风险.
科学领域:
- 森林生态 森林生态
- 保护生物学 保护生物学
- 消防科学 消防科学 消防科学
背景情况:
- 几十年来,太平洋西北部森林的火灾排斥增加了燃料负载,导致严重的野火.
- 北方斑点猫头 (Strix occidentalis caurina) 的保护优先考虑老生长森林,这些森林越来越容易受到严重火灾的影响.
- 这在保护物种息地和减少野火风险之间产生了冲突.
研究的目的:
- 提出一个空间明确的管理框架,使生物多样性保护与野火抵御能力保持一致,使用消防避难所.
- 确定北方斑点猫头的息地与自然火灾避难所重叠的地区.
- 为森林管理战略提供信息,以保护现有息地和恢复被火灾排除的地区.
主要方法:
- 使用空间建模来识别消防避难所.
- 包含经验案例研究和火灾生态原理.
- 开发了一种用于森林规划的决策支持工具.
主要成果:
- 火灾避难区是持续燃烧的区域,严重程度较低,在野火期间提供保护.
- 从历史上看,北方斑点猫头的息地很可能位于火灾避难区内.
- 火灾排斥导致息地扩张到更高风险地区,增加了脆弱性.
结论:
- 识别火灾避难所对于保护北方斑点猫头的息地和提高野火抵御能力至关重要.
- 在火灾排除的息地中,可能需要积极恢复以提高生态弹性.
- 提出了政策替代方案,以将基于难民的管理纳入更广泛的森林规划框架.
相关概念视频
02:31Habitat Fragmentation
17.9K
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.
17.9K
01:57What is Conservation Biology?
18.7K
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.
18.7K
01:50Threats to Biodiversity
22.9K
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...
22.9K
02:07Conservation of Declining Populations
9.7K
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.
9.7K
01:57Adaptations that Reduce Water Loss
26.3K
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.
26.3K
02:04Conservation of Small Populations
13.6K
Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less...
13.6K