在中国,由于可持续性和效果较差,保护区内的三分之一的耕地可能会退役
Runjia Yang1, Wu Xiao2, Yanmei Ye3
1School of Public Affairs, Zhejiang University, Hangzhou, China.
The Science of the total environment
|September 21, 2023
概括
保护区内的耕地威胁着生物多样性. 退休不太可持续的农田可以产生显著的生态效益,超过作物生产损失.
科学领域:
- 生态生态学 生态生态学
- 保护生物学 保护生物学
- 农业科学 农业科学
背景情况:
- 农田扩张到保护区导致息地丧失,影响生态系统功能和生物多样性.
- 在这些敏感区域内,农业生产和息地保护目标之间发生冲突.
研究的目的:
- 调查保护区内的耕地可持续使用情况.
- 量化作物生产和息地保护之间的权衡.
主要方法:
- 在保护区内分析了308万公的耕地.
- 在不同的息地保护严格性下建模退休场景.
- 经济和生态利益和损失的量化.
主要成果:
- 保护区内的三分之二的耕地被确定为不太可持续或不太有益.
- 将41% (最严格) 或26% (最宽松) 的农田退休,每年可以产生29亿至36亿美元的生态效益.
- 11%的耕地处于农业条件不佳的状态,19%位于高度重要的保护区,建议优先退休.
结论:
- 保护区的耕地对保护提出了重大挑战.
- 量化权衡方法对于平衡生产和保护至关重要.
- 优先考虑退休的低可持续性和高保护价值的耕地提供了实质性的生态收益.
相关概念视频
Conservation 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
Threats to Biodiversity
22.4K
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...
22.4K
Adaptations that Reduce Water Loss
25.7K
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.
25.7K
Habitat Fragmentation
17.6K
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.
17.6K
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
Sustainable Development
13.3K
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.
13.3K


