摘要
滨海盐沼较高的初级生产力以及缓慢的有机质降解速率使其具有显著的碳汇功能,对其净固碳能力开展定量化研究对于制定我国增汇减排政策、实现碳中和目标具有重要的技术支撑作用。目前,国内外有关湿地净碳汇量的观测手段、计算思路及预测方法众多,导致各种研究成果的可比性不高。从碳通量原位观测、碳收支过程测定、土壤碳储量变化、碳循环过程模拟等角度出发,对滨海盐沼净碳汇能力研究方法进行系统梳理,在总结各类方法优缺点、剖析已有研究存在问题的基础上,提出未来滨海盐沼净固碳能力确定的主要研究方向:基于湿地生态系统碳的生物地球化学循环机理,结合卫星遥感技术,构建碳源/汇过程模型,将碳通量观测及碳收支测量数据用于模型参数率定和校验,实现不同时空尺度盐沼生态系统碳收支模拟,是定量评估滨海盐沼净碳汇能力的发展趋势和有效途径。
High primary productivity and slow degradation rate of organic matter in coastal salt marshes result in a substantial carbon sink function.Quantitative research on net carbon sequestration capacity provides important technical support for formulating policies to increase sinks,reduce emissions and achieve carbon neutrality.Many methods of observation,calculation and prediction of wetland net carbon sinks are used,with low comparability among research methods.In this study,we conducted a systematic review from the perspectives of carbon flux observation,ecosystem carbon budget measurement,soil carbon storage variation and carbon cycle simulation.Following an analysis of the knowledge gaps,we proposed future research directions for determining the net carbon sequestration capacity of coastal salt marshes.On the basis of the biogeochemical cycle mechanisms of carbon in wetland ecosystems,combined with satellite remote sensing technology,a carbon source/sink process model should be constructed,and carbon flux observations and carbon budget measurement data should be used for parameter calibration and verification of model suitable for different temporal and spatial scales.The development of such model would provide an effective way to quantitatively evaluate the net carbon sink capacity of coastal salt marshes.
作者
申霞
王鹏
王为攀
王胜艳
谢瑞
王永平
姬昌辉
SHEN Xia;WANG Peng;WANG Wei-pan;WANG Sheng-yan;XIE Rui;WANG Yong-ping;JI Chang-hui(State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Nanjing Hydraulic Research Institute,Nanjing 210029,China;Key Laboratory of Ocean Space Resource Management Technology,Hangzhou 310012,China;Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education,Hohai University,Nanjing 210098,China;Yangtze Institute for Conservation and Development,Hohai University,Nanjing 210098,China;Taizhou Yinjiang Canal Administration of Jiangsu Province,Taizhou 225321,Jiangsu,China;Taizhou Hydrology and Water Resources Investigation Bureau of Jiangsu Province,Taizhou 225300,Jiangsu,China)
出处
《生态学杂志》
CAS
CSCD
北大核心
2022年第4期792-803,共12页
Chinese Journal of Ecology
基金
自然资源部海洋空间资源管理技术重点实验室开放基金(KF-2021-108)
国家自然科学基金联合基金项目(U2040209)
江苏省水利科技项目(2018041)
南京水利科学研究院创新团队项目(Y220011)资助。
关键词
滨海盐沼
碳通量
碳收支
土壤碳储量
碳循环模拟
净碳汇能力
coastal salt marsh
carbon flux
carbon budget
soil carbon storage
carbon cycle simulation
net carbon sink capacity
作者简介
申霞,女,1982年生,博士,正高级工程师,主要研究方向为滨海湿地碳循环、生态环境数值模拟。E-mail:xshen@nhri.cn;通讯作者:王鹏,E-mail:hhwp@hhu.edu.cn。
