解决区域农业生态界限:一个综合的环境足迹框架,揭示农业生态系统的可持续性差距
Linxiu Wu1, Kai Huang1, Yajuan Yu2
1Beijing Key Laboratory for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China.
Environmental science & technology
|January 15, 2025
概括
全球粮食需求给生态系统带来压力. 一个新的足迹-AEB框架评估了区域农业生态边界 (AEB) 和环境影响,揭示了复杂的压力因素和贸易驱动的压力转移,以实现可持续农业.
科学领域:
- 环境科学 环境科学
- 农业科学 农业科学
- 可持续性科学 可持续性科学
背景情况:
- 越来越多的粮食需求加剧了生态系统的过度开发,威胁到全球农业的可持续性和粮食安全.
- 有效的解决方案需要区域调整以适应农业生态边界 (AEB) 和风险.
研究的目的:
- 开发一个全球一致的,区域适应的方法来量化AEBs.
- 为评估中国农业生态系统对环境的影响创建一个特定区域的综合足迹-AEB框架.
主要方法:
- 量化区域AEB使用全球一致的,区域适应的方法.
- 开发了一个集成的足迹-AEB框架,将六个环境足迹 (EF) 与AEB结合起来.
- 分析了对中国区域农业生态系统的环境影响.
主要成果:
- 在没有区域边界背景的情况下,单个EF不足以评估复杂的农业生态压力因素.
- 中国西北地区的水界压力高于中国中部地区,尽管水位较低.
- 青海和宁夏表现出水,土地和生物多样性综合影响的高集成AEB压力.
- 贸易将环境压力从中国东部转移到中国西部,加剧了西北地区的AEB超值.
结论:
- 综合足迹-AEB框架为农业生态系统动态和环境责任提供了细微的见解.
- 需要有针对性的干预措施来管理和避免转移环境压力因素.
- 应对这些挑战对于全球农业可持续性和粮食安全至关重要.
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