水土保持通报2024，Vol.44Issue(1)：432-442,11.DOI:10.13961/j.cnki.stbctb.20240019.001
基于InVEST模型的广西茅尾海土地利用变化与碳储量评估
Assessment of Land Use Change and Carbon Storage in Maowei Sea of Guangxi Zhuang Autonomous Region Based on InVEST Model
摘要
Abstract
[Objective]Changes in land use and carbon storage in Maowei Sea of Guangxi Zhuang Autonomous Region were analyzed in order to provide a scientific basis for increasing its carbon sink capacity and improving its ecological value.[Methods]The supervised classification method was used to interpret and extract remote sensing image data for Maowei Sea in 2009,2015,and 2021.ArcGIS and the InVEST model were used to analyze spatiotemporal changes in land use and carbon storage in Maowei Sea.[Results]① The land use types in Maowei Sea mainly showed the distribution characteristics of"large settlement,small mixed residence".The areas of cultivated land,shallow sea waters,and fishery breeding areas decreased,and the areas of mangrove wetlands,building land,forest grassland,and silty tidal flats increased from 2009 to 2021.② Carbon storage initially decreased and then increased over time.Changes in net carbon sequestration and its net present value in Maowei Sea were,respectively,-1.10×105 tons and-1.37× 108 yuan,3.77×104 tons and 4.66 × 107 yuan,and-7.29 × 104 tons and-9.01 × 107 yuan in 2009-2015,2015-2021 and 2009-2021.③ The conversion from high carbon sequestration land use types(fishery breeding areas and forest and grasslands)to low carbon sequestration land use types(building land)in Maowei Sea in 2009-2021 caused the largest carbon storage loss,reaching 2.85×105 t.The conversion to fishery breeding areas increased carbon storage by 1.81×105 t.[Conclusion]Accelerating the conversion and upgrading of farming methods,increasing the proliferation of mangrove forests in terrestrial and aquatic forested areas,and accelerating the construction of forest cities will promote carbon sequestration and sustainable development in Maowei Sea.关键词
土地利用变化/碳储量/InVEST模型/茅尾海/广西壮族自治区Key words
land use change/carbon storage/In VEST model/the Maowei Sea/Guangxi Zhuang Autonomous Region分类
海洋科学引用本文复制引用
吴舒雁,朱庆林,翟焕锋..基于InVEST模型的广西茅尾海土地利用变化与碳储量评估[J].水土保持通报,2024,44(1):432-442,11.基金项目
国家海洋软科学研究课题"海岸带规划与其他规划的关系和协调研究"(OSS2017-04) （OSS2017-04）
