海南麒麟菜保护区大型海藻分布特征及碳储量研究  

Investigation of seaweed bed distribution and evaluation of its carbon storage in the Hainan Eucheuma Reserve

作　　者：王荣霞 陈娴 陈丹丹 陈晓慧 梁计林 WANG Rongxia;CHEN Xian;CHEN Dandan;CHEN Xiaohui;LIANG Jilin(Hainan Academy of Ocean and Fishery Sciences,Haikou 571126,China;Hainan Marine Surveillance and Forecasting Center,Haikou 570226,China)

机构地区：[1]海南省海洋与渔业科学院,海南海口571126 [2]海南省海洋监测预报中心,海南海口570226

出　　处：《热带海洋学报》2025年第1期182-188,共7页Journal of Tropical Oceanography

基　　金：国家重点研发项目(2022YFC3106303)。

摘　　要：大型海藻构成的海藻场是近岸海岸带重要的生物栖息地,其生态功能可与珊瑚礁、红树林、海草床和盐沼湿地等生境媲美,也是蓝碳的重要组成部分。本文以海南麒麟菜省级自然保护区琼海海域海藻场为例,对该海域海藻场的大型海藻分布特征及其碳储量进行调查与评估。本次调查研究结果表明:麒麟菜省级自然保护区(琼海)海域海藻场潮下带大型海藻平均覆盖度达50%;大型海藻为23属34种,优势种为圈扇藻(Zonaria diesingiana)、匍枝马尾藻(Sargassum polycystum)等;大型海藻平均生物量为267.75g·m^(-2);定量分析了其中的17种大型海藻,干湿比为11.58%~43.54%,有机碳含量为14.25%~39.19%;研究区域大型海藻平均碳密度为(0.49±0.004) Mg C·hm^(-2),碳储量总量为(2252.77±19.37)MgC。本文的相关研究结果为建立热带海域海藻场碳储量调查和评估方法提供了科学数据和研究基础。The seaweed bed composed of macroalgae serves as a vital biological habitat in the coastal rocky zone and plays an ecological role as coral reefs,mangroves,seagrass beds and salt marshes do.Additionally,it constitutes a significant component of blue carbon.This study exemplified the Hainan Eucheuma Reserve to investigate and evaluate the distribution characteristics and carbon storage capacity of seaweed in this area,while establishing an investigation and evaluation method for Hainan's seaweed bed carbon storage.The results showed that the average coverage of macroalgae in the subtidal zone reached 50%.There were 34 species of macroalgae in 23 genera,and the dominant species were Zonaria diesingiana,Sargassum polycystum etc.The average biomass of marcoalgae was 267.75 g·m^(-2).The dry-wet ratio of the collected macroalgae was 11.58%~43.54%,and the organic carbon content was 14.25%~39.19%.As a result,the carbon storage of seaweed in the Hainan Eucheuma Reserve was(2252.77±19.37)Mg C,and average carbon density of seaweed bed was(0.49±0.004)Mg C·hm^(-2).

关 键 词：海藻场 碳储量 蓝碳 

分 类 号：P76[天文地球—海洋科学]