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陆地保护区的息地质量和息地退化趋势

Jianqiao Zhao^1,2,3, Le Yu^1,4,5, Tim Newbold³

¹Department of Earth System Science, Ministry of Education Key Laboratory for Earth System Modeling, Institute for Global Change Studies, Tsinghua University, Beijing, China.

Conservation biology : the journal of the Society for Conservation Biology

|August 21, 2024

概括

全球保护区显示,由于人类土地使用的变化,息地质量下降,降解程度增加. 这一趋势甚至影响农业和城市化推动的偏远地区,影响生物多样性保护工作.

科学领域:

生态生态学生态生态学
保护生物学保护生物学
环境科学环境科学

背景情况:

保护区对于保护至关重要,但人类驱动的土地利用和土地覆盖 (LULC) 变化通过导致息地和生物多样性丧失来威胁其有效性.
保护区内息地质量和退化的全球状况仍然不明朗,这阻碍了有效的保护战略.

研究的目的:

分析1992年至2020年陆地保护区内息地质量和退化方面的全球空间和时间趋势.
确定息地退化的主要驱动因素,并探索影响这些趋势的因素,包括保护区特征和社会经济条件.

主要方法:

利用生态系统服务和权衡的综合估值 (InVEST) 模型与全球年度遥感数据.
采用线性混合效应建模来评估息地退化与环境和社会经济变量之间的关系.

主要成果:

1992年至2020年间,全球息地质量下降了0.6%,息地退化增加了11%.
2020年,息地退化主要是由非灌耕地 (62%) 和城市化 (27%) 推动的.
诸如海拔升高,人均GDP,人口密度和农业适用性降低等因素与息地退化加速相关.

结论:

人类引起的LULC变化正在入以前不受干扰的地区,影响全球保护区.
保护区的息地退化与社会经济因素有关,特别是富裕国家的城市化和农业需求.
保护战略必须解决LULC外部压力和社会经济驱动因素,以保持保护区的完整性.

关键词:

在投资方面,Invest.生物多样性保护生物多样性保护息地质量居住地质量土地使用和覆盖面的变化.保护生物多样性的保护息地的退化息地的退化息地退化息地退化息地质量息地质量息地质量土地使用和土地覆盖的变化.保护区保护区保护区的保护区.这是一个受保护的区域.保护区是一个保护区.土地利用和土地覆盖的变化生境质量生境质量生境退化生境退化保护和保护生物多样性

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