摘要
河口湿地植被具有较高的初级生产力,在全球气候变化减缓方面起着显著作用,水文连通性作为湿地生态过程的重要组成部分,深刻影响着河口湿地生态功能的稳定性。河口盐沼湿地植被碳汇能力对水文连通性变化的响应机制是目前国内外的研究热点。本文从河口湿地植被碳储量的评估方法、碳储量研究现状以及水文连通性的量化方法对全国范围内河口湿地开展的相关研究进行综述,比较各类方法的优缺点。河口湿地的水文连通性具有尺度差异性,本文从个体、群落和景观三个尺度上梳理了水文连通性对河口湿地植被碳汇能力的影响,明确具体的机理特征。未来关于河口盐沼湿地植被碳汇能力对水文连通性的响应研究应着重关注多尺度同步观测和多源数据融合分析的评估方法构建、多重胁迫下河口盐沼湿地水文连通性受阻与植被碳汇功能稳定性作用机制、基于水文连通性改造的河口盐沼湿地植被碳汇增汇保育技术。
Estuarine wetland vegetation has high primary productivity and plays a significant role in climate change mitigation.As an important component of wetland ecological processes,hydrological connectivity has a profound impact on ecosystem stability of estuarine wetland.Clarifying the response mechanism of estuarine salt marsh wet⁃land vegetation carbon sink capacity to changes in hydrological connectivity is a hot research topic.We reviewed the research on estuarine wetlands in China in terms of the assessment methods of vegetation carbon stock,the current status of carbon stock research and the quantification methods of hydrological connectivity,and compared the advantages and disadvantages of various methods.We sorted out the influence of hydrological connectivity on vegeta⁃tion carbon sink capacity of estuarine wetlands at three scales:individual,community,and landscape,and clari⁃fied the specific mechanism characteristics.Future research on the response of vegetation carbon sink capacity to hydrological connectivity in estuarine salt marsh wetlands should focus on multi⁃scale simultaneous observations and the construction of multi⁃source data fusion analysis assessment methods,the mechanism of hydrological connectivi⁃ty blocking and vegetation carbon sink function stability in estuarine salt marsh wetlands under multiple stresses,and vegetation carbon sink enhancement and conservation technology based on hydrological connectivity modifica⁃tion of estuarine salt marsh wetlands.
作者
洪杉杉
张广帅
蔡悦荫
张超
宋长春
刘志红
辛卓航
HONG Shanshan;ZHANG Guangshuai;CAI Yueyin;ZHANG Chao;SONG Changchun;LIU Zhihong;XIN Zhuohang(Dalian University of Technology,Dalian 116023,Liaoning,China;National Marine Environment Monitoring Center,Dalian 116023,Liaoning,China;State Key Laboratory of Coastal and Offshore Engineering,Dalian 116023,Liaoning,China;State Key Laboratory of Marine Ecological Remediation and Restoration for Environmental Protection,Dalian 116023,Liaoning,China)
出处
《生态学杂志》
北大核心
2025年第2期609-618,共10页
Chinese Journal of Ecology
基金
国家重点研发计划项目(2022YFC3106101)
国家自然科学基金项目(42293263,42201070)
国家环境保护海洋生态环境整治修复实验室自主创新基金重点项目(2022⁃Z⁃203)资助。
关键词
河口湿地
水文连通性
植被碳储量
响应机制
estuarine wetland
hydrological connectivity
vegetation carbon stock
response mechanism
