商品驱动的森林砍伐和相关的碳排放的全球模式
Chandrakant Singh1, U Martin Persson2
1Department of Space, Earth and Environment, Chalmers University of Technology, Gothenburg, Sweden. chandrakant.singh@chalmers.se.
Nature food
|February 25, 2026
概括
农业驱动的森林砍伐威胁到气候和生物多样性目标. 一个新的框架DeDuCE量化了184种商品的森林砍伐足迹,揭示了被忽视的米和玉米等主食作物对排放有重大贡献.
科学领域:
- 环境科学 环境科学
- 气候科学 气候科学
- 农业科学 农业科学
背景情况:
- 农业驱动的森林砍伐挑战了气候和生物多样性目标.
- 现有的数据集缺乏全面性,无法将森林砍伐与粮食生产联系起来,这阻碍了保护工作.
- 有效的森林保护和气候变化缓解需要详细的森林砍伐归因.
研究的目的:
- 开发和应用一个森林砍伐归因框架 (DeDuCE) 来详细量化与农业和林业商品相关的森林砍伐.
- 为众多国家和商品组合提供年度森林砍伐碳足迹.
- 确定驱动森林砍伐的商品,并为保护战略提供信息.
主要方法:
- 整合全面的空间和统计数据集.
- 森林砍伐归因框架 (DeDuCE) 的开发.
- 2001-2022年国家-商品森林砍伐-碳足迹的年度报告.
主要成果:
- DeDuCE量化了9332个独特的国家-商品砍伐森林-碳足迹,遍及179个国家和184种商品.
- 全球监测在很大程度上忽视了大米,玉米和麻豆等主食作物.
- 牛肉,油棕,,大豆,可可和咖啡是主要关注的领域,但主食作物也对森林砍伐和碳排放作出了重大贡献.
结论:
- 为了平衡粮食安全与森林和气候保护,需要更多地关注主食作物.
- 需要加强对大米,玉米和麻豆等商品的监测和保护策略.
- DeDuCE框架提供了一种详细的方法来理解和减轻商品生产对森林砍伐的影响.
相关概念视频
The Carbon Cycle
44.7K
Carbon is the basis of all organic matter on Earth, and is recycled through the ecosystem in two primary processes: one in which carbon is exchanged among living organisms, and one in which carbon is cycled over long periods of time through fossilized organic remains, weathering of rocks, and volcanic activity. Human activities, including increased agricultural practices and the burning of fossil fuels, has greatly affected the balance of the natural carbon cycle.
44.7K
Global Climate Change
29.2K
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.
29.2K
Threats to Biodiversity
27.5K
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...
27.5K
Sustainable Development
15.3K
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.
15.3K
What is Climate?
21.1K
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.
21.1K
Habitat Fragmentation
21.6K
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.
21.6K


