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Increased ecological land and atmospheric CO2 2 dominate the growth of ecosystem carbon sinks under the regulation of environmental conditions in national key ecological function zones in China

文献类型：期刊论文

作者Zhang, Mengyu3,5,6; He, Honglin1,3,5; Zhang, Li1,3,5; Yu, Guirui1,5; Ren, Xiaoli1,3,5; Lv, Yan3,5,6; Niu, Zhong'en2; Qin, Keyu3,5; Gao, Yanni4
刊名JOURNAL OF ENVIRONMENTAL MANAGEMENT
出版日期2024-08-01
卷号366页码:121906
关键词Ecosystem carbon sink Ecological land Land use change Ecological restoration Global change National key ecological function zones
DOI10.1016/j.jenvman.2024.121906
产权排序1
文献子类Article
英文摘要Increased ecological land (IEL) such as forests and grasslands can greatly enhance ecosystem carbon sinks. Understanding the mechanisms for the magnitude of IEL-induced ecosystem carbon sinks is crucial for achieving carbon neutrality. We estimated the impact of IEL, specifically the increase in forests and grasslands, as well as global changes including atmospheric CO2 2 concentration, nitrogen deposition, and climate change on net ecosystem productivity (NEP) in National Key Ecological Function Zones (NKEFZs) in China using a calibrated ecological process model. The NEP in NKEFZs in China was calculated to be 119.4 Tg C yr-- 1 , showing an increase of 42.6 Tg C yr-- 1 from 2001 to 2021. Compared to the slight contributions of climate change (-8.0%), nitrogen deposition (11.5%), and reduction in ecological land (-3.5%), the increase in NEP was primarily attributed to CO2 2 (66.5%) and IEL (33.5%). Moreover, the effect of IEL (14.8 Tg C yr-- 1 ) surpassed that of global change (13.1 Tg C yr-- 1 ) in the land use change zone. The IEL-induced NEP is significantly associated with CO2 2 fertilization, regulated by precipitation and nitrogen deposition. The high values of IEL-induced NEP occurred in areas with precipitation exceeding 800 mm and nitrogen deposition exceeding 25 kg N ha- 1 yr- 1 . We recommend prioritizing the expansion of ecological land in areas with sufficient water and nutrients to enhance CO2 2 fertilization, while avoiding increasing ecological land in regions facing unfavorable climate change conditions. This study serves as a foundation for comprehending the NEP response to ecological restoration and global change.
WOS关键词NITROGEN DEPOSITION ; TERRESTRIAL ECOSYSTEMS ; SEQUESTRATION ; SOIL ; PRODUCTIVITY ; ACCUMULATION ; RESPIRATION ; IMPACTS ; CLIMATE ; TRENDS
WOS研究方向Environmental Sciences & Ecology
WOS记录号WOS:001275246500001
源URL[http://ir.igsnrr.ac.cn/handle/311030/206040]  
专题生态系统网络观测与模拟院重点实验室_外文论文
通讯作者He, Honglin
作者单位1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Anguilla
2.Ludong Univ, Sch Resources & Environm Engn, Yantai 264025, Shandong, Peoples R China
3.Natl Ecosyst Sci Data Ctr, Beijing 100101, Peoples R China
4.Chinese Res Inst Environm Sci, Beijing 100012, Peoples R China
5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Mengyu,He, Honglin,Zhang, Li,et al. Increased ecological land and atmospheric CO2 2 dominate the growth of ecosystem carbon sinks under the regulation of environmental conditions in national key ecological function zones in China[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2024,366:121906.
APA Zhang, Mengyu.,He, Honglin.,Zhang, Li.,Yu, Guirui.,Ren, Xiaoli.,...&Gao, Yanni.(2024).Increased ecological land and atmospheric CO2 2 dominate the growth of ecosystem carbon sinks under the regulation of environmental conditions in national key ecological function zones in China.JOURNAL OF ENVIRONMENTAL MANAGEMENT,366,121906.
MLA Zhang, Mengyu,et al."Increased ecological land and atmospheric CO2 2 dominate the growth of ecosystem carbon sinks under the regulation of environmental conditions in national key ecological function zones in China".JOURNAL OF ENVIRONMENTAL MANAGEMENT 366(2024):121906.

入库方式： OAI收割

来源：地理科学与资源研究所

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