气候变化领域集成服务门户(CCPortal): Elevated CO2 levels promote both carbon and nitrogen cycling in global forests

CCPortal

DOI	10.1038/s41558-024-01973-9
	Elevated CO2 levels promote both carbon and nitrogen cycling in global forests
	Cui, Jinglan; Zheng, Miao; Bian, Zihao; Pan, Naiqing; Tian, Hanqin; Zhang, Xiuming; Qiu, Ziyue; Xu, Jianming; Gu, Baojing
发表日期	2024
ISSN	1758-678X
EISSN	1758-6798
起始页码	14
结束页码	5
卷号	14 期号:5
英文摘要	Forests provide vital ecosystem services, particularly as carbon sinks for nature-based climate solutions. However, the impact of elevated atmospheric carbon dioxide (CO2) levels on carbon and nitrogen interactions of forests remains poorly quantified. We integrate experimental observations and biogeochemical models to elucidate the synergies between enhanced nitrogen and carbon cycling in global forests under elevated CO2. Elevated CO2 alone increases net primary productivity (+27%; 95% CI: 23-31%) and leaf C/N ratio (+26%; 95% CI: 16-39%), while stimulating biological nitrogen fixation (+25%; 95% CI: 0-56%) and nitrogen use efficiency (+32%; 95% CI: 5-65%) according to a global meta-analysis. Under the elevated CO2 middle-road scenario for 2050, the forest carbon sink is projected to increase by 0.28 billion tonnes (PgC yr(-1)), with reactive nitrogen loss decreasing by 8 Tg yr(-1) relative to the baseline. The monetary impact assessment of the elevated CO2 impact on forests represents a societal value of US$271 billion.
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Environmental Studies ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:001195888900002
来源期刊	NATURE CLIMATE CHANGE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/292761
作者单位	Zhejiang University; Zhejiang University; Boston College; Nanjing Normal University; Zhejiang University; Zhejiang University
推荐引用方式 GB/T 7714	Cui, Jinglan,Zheng, Miao,Bian, Zihao,et al. Elevated CO2 levels promote both carbon and nitrogen cycling in global forests[J],2024,14(5).
APA	Cui, Jinglan.,Zheng, Miao.,Bian, Zihao.,Pan, Naiqing.,Tian, Hanqin.,...&Gu, Baojing.(2024).Elevated CO2 levels promote both carbon and nitrogen cycling in global forests.NATURE CLIMATE CHANGE,14(5).
MLA	Cui, Jinglan,et al."Elevated CO2 levels promote both carbon and nitrogen cycling in global forests".NATURE CLIMATE CHANGE 14.5(2024).