碳汇
气候变化
环境科学
水槽(地理)
碳循环
生态系统
温室气体
土地利用、土地利用的变化和林业
全球变暖
生态学
土地利用
地理
地图学
生物
作者
Binbin Huang,Fei Lu,Xiaoke Wang,Xing Wu,Lu Zhang,Zhiyun Ouyang
标识
DOI:10.1088/1748-9326/ac3871
摘要
Abstract The impact of climate change, rising CO 2 , land-use/land-cover change and land management on the carbon cycle in terrestrial ecosystems has been widely reported. However, only rarely have studies have been conducted to clarify the impact of climate change and rising CO 2 on the carbon sink contributed by ecological restoration projects (ERPs). To better understand the impact of climate change and rising CO 2 on ERPs, we took the Beijing–Tianjin Sand Source Control Project zone as an example to set up different scenarios to distinguish the confounding effects of these factors on the regional carbon budget based on a remote sensing data-driven model. Compared with business as usual, our results show that climate change caused a carbon loss of 78.97 Tg C. On the contrary, ERPs contributed a carbon sink of approximately 199.88 Tg C in forest and grassland. Furthermore, rising CO 2 also contributed an additional carbon sink of 107.80 Tg C. This study distinguished the individual effects of different factors, and clarified the net carbon sink contributed by ERPs and rising CO 2 and their significance for enhancing the regional carbon sink and reversing the adverse effects of climate change on the carbon sink. Furthermore, ERPs can sequester carbon more effectively and faster compared with rising atmospheric CO 2 concentration.
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