重庆市中心城区碳储存服务评估:InVEST模型和ARIES模型对比分析  

Evaluation of carbon storage service in central urban area of Chongqing:Comparison between results from the InVEST model and ARIES model

作　　者：李媛媛 尹珂[1] LI Yuanyuan;YIN Ke(School of Geography and Tourism,Chongqing Normal University,Chongqing 401331,China)

机构地区：[1]重庆师范大学地理与旅游学院,重庆401331

出　　处：《生态学报》2025年第4期1575-1587,共13页Acta Ecologica Sinica

基　　金：国家社会科学基金项目(20BJL102);重庆市教育委员会人文社会科学研究项目(24SKGH066)。

摘　　要：生态系统碳储存服务评估领域已涌现出多种模型与工具,但不同模型导致的评估结果差异缺乏定量比较。为深入分析不同模型在同一区域碳储存服务评估中的表现差异与有效性,采用InVEST模型与ARIES模型两种生态系统服务评估工具,对重庆市中心城区的碳储量进行对比评估。结果表明:InVEST模型评估中心城区碳密度为92.99t/hm^(2),碳储总量505.03×10^(5)t,ARIES模型估算的碳密度为116.88t/hm^(2),碳储总量639.58×10^(5)t;不同土地覆盖类型中,林地碳密度最高,耕地和林地为区域主要碳库;在海拔梯度上,碳密度随海拔升高而递增,碳储量随海拔呈先增后减的趋势;两模型评估的区域碳储量空间分布格局一致,均呈“中间低,四周高”,而分布形式差异显著。造成两模型评估结果差异的因素包括碳密度数据与评价单元的不同;InVEST模型侧重以土地覆盖类型为评价单元,碳储量按地类分布,ARIES模型则耦合地类与栅格单元,碳储量以斑块形式分布。InVEST模型评估结果可反映不同地类的碳储量高低,而ARIES模型则能进一步揭示同一地类间碳储量的空间异质性,ARIES模型评估结果的有效性更强,可为区域制定固碳政策提供有力支持。In the field of ecosystem carbon storage service evaluation,numerous models and tools have emerged.However,quantitative comparisons of the evaluation results produced by these models have not been made.To analyze the differences and effectiveness of these models,this study employs two ecosystem service assessment tools,the InVEST and ARIES models,to evaluate carbon stock in the central urban area of Chongqing.The results indicate that the carbon density of the central urban area is 92.99 t/hm^(2)(116.88 t/hm^(2)),and the total amount of carbon storage is 505.03×10^(5)t(639.58×10^(5)t)from the InVEST model(ARIES model).Among different land cover types,forests exhibit the highest carbon density,and both croplands and forests serve as the primary carbon pools in the region.Regarding altitude gradients,carbon density increases with altitude,while carbon stock first increases and then decreases.Both models reveal a consistent spatial distribution pattern of regional carbon storage,characterized by“low in the middle,high around the edges,”although the distribution forms differ significantly.The differences in evaluation results between the two models are attributed to variations in carbon density data and evaluation units.The InVEST model focuses on land cover types as the evaluation units,distributing carbon stock by land cover types,while the ARIES model integrates land cover types with grid units,distributing carbon stock in patches.The InVEST model′s results reflect the carbon stock levels of various land cover types,whereas the ARIES model further reveals the spatial heterogeneity of carbon stock within the same land cover type.The ARIES model′s results are more effective,providing robust support for regional carbon sequestration policy formulation.

关 键 词：碳储存服务 碳储量 InVSET模型 ARIES模型 

分 类 号：X171.1[环境科学与工程—环境科学]