基于InVEST模型的辽宁省海岸带碳储量时空变化研究  

Research on the Spatiotemporal Variation of Carbon Storage in the Coastal Zone of Liaoning Province Based on InVEST Model

作　　者：朱丽亚 胡克[1] 孙爽 刘禹含 梁佳欣 ZHU Liya;HU Ke;SUN Shuang;LIU Yuhan;LIANG Jiaxin(School of Ocean Sciences,China University of Geosciences,Beijing 100083,China)

机构地区：[1]中国地质大学(北京)海洋学院,北京100083

出　　处：《现代地质》2022年第1期96-104,共9页Geoscience

基　　金：国土资源部地质环境治理专项(3-4-2014-175)。

摘　　要：陆地生态系统碳储量与全球气候变化密切相关,研究海岸带地区土地利用变化对生态系统服务碳储量的影响,对于区域生态系统保护及社会经济可持续发展具有重要意义。以辽宁省海岸带地区为例,分析了1995—2018年海岸带地区的土地利用变化特征,运用InVEST模型碳储量模块估算了1995—2018年区域生态系统的碳储量,结果表明:(1)研究区生态系统碳储量呈减少的趋势,累计损失了12.97×10^(6)t;(2)碳储量较高的区域主要分布在研究区的东西两侧以及中部的沼泽地,碳储量较低的区域主要分布在锦州市的东部、盘锦市的北部;(3)林地、耕地是研究区最为重要的碳库,其碳储量占研究区所有土地利用类型固碳总量的83.86%。建设用地面积增加、林地和草地面积的减少是区域生态系统碳储量减少的主要原因。The carbon storage of terrestrial ecosystem is closely related to global climate change.Studying the impact of land use change on the carbon storage of ecosystem services in the coastal zone is of great significance for regional ecosystem protection and economic and social development.Taking the coastal zone of Liaoning Province as an example,this paper analyzed the characteristics of land use change in coastal zone from 1995 to 2018,and used the carbon storage module of InVEST model to estimate the changes of regional carbon storage from 1995 to 2018.The results showed that:(1)the carbon storage of ecosystem in the study area showed a decreasing trend,with a cumulative decrease of 12.97×10^(6)t;(2)the areas with high carbon storage are mainly distributed in the east and west sides and swamps in the middle of the study area,and the areas with low carbon storage are mainly distributed in the east of Jinzhou city and the north of Panjin city;(3)forest and cropland are the most important land use types for carbon sequestration in the study area,and its’s carbon storage accounts for 83.86%of the total carbon storage of all land use types.The increase of built-up land area and the decrease of forest and grassland area are the main reasons for the decrease of regional ecosystem carbon storage.

关 键 词：碳储量 InVEST模型 时空变化 海岸带 

分 类 号：P737.1[天文地球—海洋地质] X145[天文地球—海洋科学]