| 摘要: |
| 红树林、盐沼和海草床等滨海湿地生态系统是滨海蓝碳的重要组成,其沉积物碳埋藏远高于陆地生态系统,是地球上重要的碳库。沉积物碳埋藏速率(carbon accumulation rate,CAR)是衡量滨海蓝碳生态系统固碳能力的关键指标,其定量测量方法是蓝碳研究的前沿科学问题。文章系统阐述了国内外常用的CAR测定方法,重点综述了地表高程-标志层监测体系(surface elevation table-marker horizon,SET)的原理及其在滨海湿地沉积速率监测和CAR计量中的应用,讨论了CAR和储量差分法在滨海蓝碳碳收支评估中的应用。SET监测体系符合联合国政府间气候变化专门委员会提出的最高精度要求,未来需进一步完善我国滨海湿地SET监测站点的布设,使之更好地服务于滨海湿地的碳收支清单编制,为国家碳中和战略提供基础观测数据。 |
| 关键词: 蓝碳 滨海湿地 碳储量 碳汇 碳埋藏速率 |
| DOI：10.11693/hyhz20210800177 |
| 分类号:P736.21 |
| 基金项目:国家自然科学基金面上项目,42076176号,41476071号;福建省自然科学基金项目,2020J01048号。 |
附件 |
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| APPLICATION OF SURFACE ELEVATION TABLE FOR CARBON BUDGET ASSESSMENTS IN COASTAL BLUE CARBON ECOSYSTEMS |
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CHEN Lu-Zhen
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State Key Laboratory of Marine Environmental Science, Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen 361102, China
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| Abstract: |
| angroves, salt marshes, and seagrass beds are important components of coastal blue carbon, with much higher carbon burials in sediment than those in terrestrial ecosystems. Carbon accumulation rate (CAR) is a key index to evaluate the carbon sequestration capacity of coastal blue carbon ecosystems. This review introduced the principle of a long-term monitoring system, the surface elevation table-marker horizon (SET-MH), and its application in CAR evaluation in coastal wetlands. The SET-MH methods have been globally used in blue carbon sequestration capacity assessment. The establishment of the SET monitoring systems in the coasts of China will obtain in situ data set of surface elevation change and CAR, which will serve for the blue carbon assessments and provide basic information for the national carbon neutrality strategy. |
| Key words: blue carbon coastal wetland carbon stock carbon sink carbon accumulation rate |
