海岸带规划与管理视角下的碳储量时空变化

Spatial and Temporal Variation of Carbon Storage from Coastal Zone Planning and Management Perspective

海岸带拥有巨大的碳汇潜能,在实现区域双碳目标方面具有重要的作用。从海岸带规划与管理角度出发,使用上海临港新片区海岸带2015年、2018年和2021年Sentinel-2 MSI遥感数据及碳密度数据,利用InVEST模型获取了研究区内碳储量时空分布,分析了海岸带规划与管理下自然-人为驱动过程导致的碳储量变化。结果表明:2015年、2018年和2021年研究区总碳储量分别为1.40×10^(6) Mg、1.38×10^(6) Mg、1.28×10^(6) Mg;由11种驱动过程导致的土地利用/土地覆盖变化是引起碳储量变化的重要原因,其中围垦(reclamation,R)导致碳储量减少1.27×10^(5) Mg,修复(restoration,Re)补偿了8.01×10^(4) Mg碳储量。研究成果为研究海岸带城市化过程中的碳储量变化提供了一种新的思路,为临港新片区海岸带空间规划与管理提供了决策支持。

Coastal zone contains huge carbon storage and plays an important role in realizing regional carbon peaking and carbon neutrality goals.From the perspective of coastal zone planning and management,Sentinel-2 MSI data and carbon density data of Shanghai Lingang New Area coastal zone in 2015,2018 and 2021 were used to obtain the spatial and temporal distribution of carbon storage by using InVEST model.The change of carbon storage caused by natural and human driving processes under coastal zone planning and management was analyzed.Results showed that total carbon storage in 2015,2018 and 2021 were 1.40×10^(6) Mg,1.38×10^(6) Mg and 1.28×10^(6) Mg,respectively;land use/land cover changes caused by 11 driving processes were the important reasons for the change of carbon storage.Reclamation(R)led to a reduction of 1.27×10^(5) Mg of carbon storage,and restoration(Re)compensated for 8.01×10^(4) Mg of carbon storage.The research results provide a new idea for studying the change of carbon storage during the urbanization of coastal zone,and can be used for the spatial management of coastal zone in Lingang New Area.