Carbon fluxes of China's coastal wetlands and impacts of reclamation and restoration

湿地 环境科学 蓝炭 盐沼 红树林 土地复垦 生态系统 沼泽 初级生产 固碳 碳汇 水文学(农业) 气候变化 咸沼泽 生态系统呼吸 生态学 二氧化碳 地质学 岩土工程 生物
作者
Weizhi Lu,Jingfeng Xiao,Haiqiang Gao,Qingyu Jia,Zhengjie Li,Jie Liang,Qing-Hui XING,Dehua Mao,Hong Li,Xiaojing Chu,Hui Chen,Haiqiang Guo,Guangxuan Han,Bin Zhao,Luzhen Chen,Derrick Y.F. Lai,Shuguang Liu,Guanghui Lin
出处
期刊:Global Change Biology [Wiley]
卷期号:30 (4) 被引量:11
标识
DOI:10.1111/gcb.17280
摘要

Abstract Coastal wetlands play an important role in regulating atmospheric carbon dioxide (CO 2 ) concentrations and contribute significantly to climate change mitigation. However, climate change, reclamation, and restoration have been causing substantial changes in coastal wetland areas and carbon exchange in China during recent decades. Here we compiled a carbon flux database consisting of 15 coastal wetland sites to assess the magnitude, patterns, and drivers of carbon fluxes and to compare fluxes among contrasting natural, disturbed, and restored wetlands. The natural coastal wetlands have the average net ecosystem exchange of CO 2 (NEE) of −577 g C m −2 year −1 , with −821 g C m −2 year −1 for mangrove forests and −430 g C m −2 year −1 for salt marshes. There are pronounced latitudinal patterns for carbon dioxide exchange of natural coastal wetlands: NEE increased whereas gross primary production (GPP) and respiration of ecosystem decreased with increasing latitude. Distinct environmental factors drive annual variations of GPP between mangroves and salt marshes; temperature was the dominant controlling factor in salt marshes, while temperature, precipitation, and solar radiation were co‐dominant in mangroves. Meanwhile, both anthropogenic reclamation and restoration had substantial effects on coastal wetland carbon fluxes, and the effect of the anthropogenic perturbation in mangroves was more extensive than that in salt marshes. Furthermore, from 1980 to 2020, anthropogenic reclamation of China's coastal wetlands caused a carbon loss of ~3720 Gg C, while the mangrove restoration project during the period of 2021–2025 may switch restored coastal wetlands from a carbon source to carbon sink with a net carbon gain of 73 Gg C. The comparison of carbon fluxes among these coastal wetlands can improve our understanding of how anthropogenic perturbation can affect the potentials of coastal blue carbon in China, which has implications for informing conservation and restoration strategies and efforts of coastal wetlands.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
包容的剑完成签到 ,获得积分10
3秒前
等待的大炮完成签到,获得积分10
3秒前
注水萝卜完成签到 ,获得积分10
5秒前
Chem34完成签到,获得积分10
13秒前
15秒前
量子星尘发布了新的文献求助10
15秒前
hhh2018687完成签到,获得积分10
15秒前
15秒前
16秒前
16秒前
16秒前
16秒前
17秒前
17秒前
17秒前
17秒前
17秒前
17秒前
17秒前
嘒彼小星完成签到 ,获得积分10
17秒前
17秒前
18秒前
18秒前
18秒前
18秒前
19秒前
ri_290完成签到,获得积分10
19秒前
20秒前
nsc发布了新的文献求助30
22秒前
nsc发布了新的文献求助10
22秒前
nsc发布了新的文献求助10
22秒前
nsc发布了新的文献求助10
22秒前
nsc发布了新的文献求助10
22秒前
nsc发布了新的文献求助10
22秒前
nsc发布了新的文献求助10
22秒前
nsc发布了新的文献求助10
22秒前
nsc发布了新的文献求助10
22秒前
nsc发布了新的文献求助10
22秒前
nsc发布了新的文献求助10
22秒前
nsc发布了新的文献求助10
22秒前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Handbook of Industrial Diamonds.Vol2 1100
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 4038039
求助须知:如何正确求助?哪些是违规求助? 3575756
关于积分的说明 11373782
捐赠科研通 3305574
什么是DOI,文献DOI怎么找? 1819239
邀请新用户注册赠送积分活动 892655
科研通“疑难数据库(出版商)”最低求助积分说明 815022