相关实验视频
Updated: Jul 11, 2025

12:44
Watershed Planning within a Quantitative Scenario Analysis Framework
Published on: July 24, 2016
8.0K
对生物多样性的影响评估 考虑到土地使用强度和碎片化
Laura Scherer1, Francesca Rosa2, Zhongxiao Sun3
1Institute of Environmental Sciences (CML), Leiden University, 2333 CC Leiden, The Netherlands.
Environmental science & technology
|November 16, 2023
概括
本研究引入了用于评估土地利用对生物多样性的影响的新特性因素. 这些因素包括土地使用强度和碎片化,以改善对陆地生态系统的环境决策.
科学领域:
- 环境科学 环境科学
- 生态生态学 生态生态学
- 生物多样性保护 生物多样性保护
背景情况:
- 土地利用变化是陆地生物多样性丧失的主要驱动因素.
- 生命周期评估 (LCA) 是评估环境影响和做出决策的关键工具.
- 现有的LCA方法需要改进,以充分解决土地利用对生态系统质量的影响.
研究的目的:
- 在全球生命周期影响评估指南 (GLAM) 项目中开发土地利用影响的新型特征因素.
- 将土地使用强度和碎片化纳入生物多样性评估的统一LCA框架.
- 为应用这些新因素提供更新的数据集和实际指导.
主要方法:
- 开发结合土地使用强度和碎片化的新特征因素.
- 包括五个物种群 (植物,两动物,鸟类,哺乳动物,爬行动物) 和五种土地使用类型 (耕地,牧场,种植园,管理森林,城市).
- 基础模型的参数化与更新的数据集,适用于生态区域和国家层面.
主要成果:
- 新的特征因素可用于评估土地利用对区域和全球物种丰富性的影响.
- 这些因素解释了不同的土地使用强度 (最小,轻,强烈) 和土地使用类型.
- 更新的数据集提高了模型的准确性和适用性.
结论:
- 开发的表征因素为量化土地利用对LCA内生物多样性的影响提供了改进的方法.
- 这些因素通过提供对土地利用威胁的全面评估,支持更明智的环境决策.
- 该研究强调了新因素的优势,同时承认了未来研究和改进的领域.
相关概念视频
Habitat Fragmentation
17.5K
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.
17.5K
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
Ecological Disturbance
17.1K
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.
17.1K
What is Biodiversity?
27.4K
Biodiversity describes the variety of living things at multiple organizational levels: genetic, species and ecosystem diversity. Species diversity includes all branches of the evolutionary tree from single-celled prokaryotic organisms, bacteria, and archaea, to the eukaryotic kingdoms: plants; animals; fungi; and protists. To date, there have been about 1.75 million species identified, and new species are discovered every week.
27.4K
What is Conservation Biology?
18.5K
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.
18.5K
Biodiversity and Human Values
13.1K
Human civilization relies on biodiversity in many ways. Sudden changes in species biodiversity result in environmental changes that can modify weather patterns and therefore human civilizations.
13.1K

