生物圈
生物群落
环境科学
生物量(生态学)
全球变化
全球变暖
生态系统
气候变化
碳循环
栖息地破坏
栖息地
环境保护
生态学
生物
作者
Mengqing Geng,Xuecao Li,Haowei Mu,Guojiang Yu,Li Chai,Zhongwen Yang,Haimeng Liu,Jianxi Huang,Han Liu,Zhengshan Ju
摘要
Human activities have placed significant pressure on the terrestrial biosphere, leading to ecosystem degradation and carbon losses. However, the full impact of these activities on terrestrial biomass carbon remains unexplored. In this study, we examined changes in global human footprint (HFP) and human-induced aboveground biomass carbon (AGBC) losses from 2000 to 2018. Our findings show an increasing trend in HFP globally, resulting in the conversion of wilderness areas to highly modified regions. These changes have altered global biomes' habitats, particularly in tropical and subtropical regions. We also found accelerated AGBC loss driven by HFP expansion, with a total loss of 19.99 ± 0.196 PgC from 2000 to 2018, especially in tropical regions. Additionally, AGBC is more vulnerable in the Global South than in the Global North. Human activities threaten natural habitats, resulting in increasing AGBC loss even in strictly protected areas. Therefore, scientifically guided planning of future human activities is crucial to protect half of Earth through mitigation and adaptation under future risks of climate change and global urbanization.
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