福建省海水贝藻类养殖碳汇能力及其影响机制  

Carbon sink capacity and its influencing mechanism of marine cultured shellfish and seaweed in Fujian Province

作　　者：马淑媛 张晨 段羽歆 李晨欣 张巧文 龚梓彤 卜楠婷 黄子晗 MA Shuyuan;ZHANG Chen;DUAN Yuxin;LI Chenxin;ZHANG Qiaowen;GONG Zitong;BU Nanting;HUANG Zihan(Fujian Provincial Key Laboratory for Subtropical Resources and Envieonment,Fujian Normal University,Fuzhou 350117;School of Geographical Sciences,Fujian Normal Uniersity,Fuzhou 350117;Insitute of Geography,Fujian Normal University,Fuzhou 350117)

机构地区：[1]福建师范大学福建省亚热带资源与环境重点实验室,福州350117 [2]福建师范大学地理科学学院,福州350117 [3]福建师范大学地理研究所,福州350117

出　　处：《环境科学学报》2024年第3期409-418,共10页Acta Scientiae Circumstantiae

基　　金：国家自然科学基金青年项目(No.42201191);福建省自然科学基金(No.2023J01132211)。

摘　　要：研究聚焦于市域、县域等微观尺度,系统探究了福建省海水贝藻类养殖碳汇能力及其空间特征,并判识主要影响因子及其交互关系.结果表明:福建省具有丰富的海水贝藻类养殖碳汇,其规模高达107万t,但大部分地区碳汇规模与碳汇效率不成正比.通过进一步养殖结构优化,到2025年福建省海水贝藻类养殖将拥有约270万t碳汇潜力.此外,福建省海水贝藻类养殖碳汇规模在空间上呈明显的集聚型,高-高集聚主要分布在宁德与福州交界处、莆田中段与漳州中段,低-低集聚分布在三都澳、湄洲岛、泉州和诏安湾地区.总体来看,规模效应是福建省当前贝藻类养殖碳汇量变化的主导因子,人均GDP、废水排放总量的单因子影响力相对较低,但与养殖结构、养殖密度交互作用后呈非线性增强趋势.This study estimated the carbon sink capacity of marine cultured shellfish and seaweed and the spatial characteristics at city and county scales in Fujian Province.Then the main impact factors and their interactions were investigated.The results showed that there was a large number of the carbon sink derived from these marine resources in the region.However,the spatial distribution of this sink did not consistently align with efficiency across most areas.The most H-H aggregation region were distributed at the convergence of the city of Ningde and Fuzhou and the middle of the city of Putian and Zhangzhou.The most L-L aggregation region were mainly distributed in Sandu ao,Meizhou Island,Quanzhou City and Zhao’an Bay.Leveraging optimized cultivation structures potentially unlock a 2.7 million-ton carbon sink potential by 2025.On the whole,this study emphasizes the scale effect being the dominant factor influencing the changes of carbon sink in marine cultured shellfish and seaweed in Fujian Province.The single factor like per capita GDP and total wastewater discharge exhibited relatively lower individual impacts,their nonlinear interactions with cultivation structure and density have significant influence.

关 键 词：海水贝藻类养殖 碳汇 影响因素 地理探测器 福建省 

分 类 号：X17[环境科学与工程—环境科学]