农田侵占全球保护区及其国家一级驱动因素
1Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry, Guangzhou, 510520, China.
Oecologia
|May 21, 2025
概括
农田侵占保护区 (PAs) 是一个全球性问题,在不同地区和保护水平上产生不同的影响. 经济和农业的发展显著地推动了这种侵占,需要更严格的PA保护.
科学领域:
- 环境科学 环境科学
- 保护生物学 保护生物学
- 生态生态学 生态生态学
背景情况:
- 农田扩张到保护区 (PAs) 威胁到全球生物多样性保护.
- 这种侵占的程度,时间动态,区域差异和国家驱动因素在很大程度上尚未评估.
研究的目的:
- 从1985年到2020年,量化全球PA的耕地侵占情况.
- 分析侵权的区域和保护水平差异.
- 识别农业区农田侵占国家驱动因素.
主要方法:
- 分析全球PA的土地覆盖组成.
- 计算耕地网格密度 (CGD),以可视化侵占.
- 相关性分析和通用线性模型 (GLM) 以确定国家驱动因素.
主要成果:
- 侵占耕地是一个全球性的现象,不同地区和保护水平的强度各不相同.
- 在西欧,拉丁美洲南部,中非和南亚的部分地区观察到高耕地网格密度 (CGD).
- 亚太地区,欧洲,拉丁美洲和加勒比地区的CGD下降,但在非洲和西亚地区增加.
- 拥有更高保护级别的供应商表现出较低的CGD.
- 国家驱动因素包括与经济和农业发展的负相关性,以及与贫困压力和农村人口百分比的积极相关性.
- 人均GDP,耕地和永久耕地百分比是重要的因素.
结论:
- 平衡农业发展和生态保护是一个重大挑战.
- 迫切需要对农产区采取更严格的保护措施,以减轻耕地侵占.
- 了解国家驱动因素对于有效的保护战略至关重要.
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