基于Frastate的六安市LUCC碳排放对景观格局变化的响应  

Response of LUCC Carbon Emissions to Landscape Pattern Change in Lu'an City based on Frastate

作　　者：赵铭 周振宏[1] 智菲 杨宗霖 高超群 ZHAO Ming;ZHOU Zhenhong;ZHI Fei;YANG Zonglin;GAO Chaoqun(College of Forestry and Landscape Architecture,Anhui Agricultural University,Hefei 230036,China)

机构地区：[1]安徽农业大学林学与园林学院,合肥230036

出　　处：《能源研究与管理》2024年第4期27-35,共9页Energy Research and Management

基　　金：国家自然科学基金青年科学基金项目(41301650)。

摘　　要：为了给六安市在实现“双碳”目标的过程中,制定区域低碳发展策略、优化土地利用结构及提升土地管理效率提供科学的决策支持。基于六安市2000—2020年间的5期土地利用数据,运用Frastate4.2软件计算景观格局指数,采用碳排放系数法对土地的碳源与碳汇进行定量评估,并采用灰色关联模型量化分析两者的关联程度。结果表明:1)在2000—2020年间,六安市景观破碎化程度显著提高,斑块间距离分散,导致景观系统向愈加错综复杂的层次发展,同时,景观多样性亦由单一性向复杂性转变。2)同期,六安市碳源和碳汇量呈增长态势,但碳源量的增长使六安市成为碳净排放区,碳排放总量呈增加趋势。3)六安市的碳排放量增长与景观格局破碎化、分布复杂性增强、斑块间分散度提升及最大斑块面积缩减等因素存在显著的相关性。景观格局变化是影响六安市碳排放量的关键驱动力。因而,在制订区域低碳发展策略时,需综合考量景观格局的动态变化,通过合理调整土地使用模式和优化土地利用措施,以有效降低碳排放并推进区域的可持续发展。In the process of achieving the"double carbon"goal,it provides scientific decision-making support for Lu'an city to formulate regional low-carbon development strategies,optimize land use structure and improve land management efficiency.Based on the land use data of Lu'an city in the fifth period from 2000 to 2020,the landscape pattern index was calculated by using Frastate4.2 software,the carbon emission coefficient method was used to quantitatively evaluate the carbon source and carbon sink of the land,and the gray correlation model was used to quantitatively analyze the correlation degree between the two.The results showed that:1)From 2000 to 2020,the degree of landscape fragmentation in Lu'an city increased significantly,and the distance between patches was scattered,which led to the development of landscape system to more complex levels,and at the same time,the landscape diversity also changed from singularity to complexity.2)During the same period,the carbon sources and carbon sinks in Lu'an city showed an increasing trend,but the growth of carbon sources made Lu'an city a net carbon emission area, and the total carbon emissions showed an increasing trend. 3) There was a significantcorrelation between the growth of carbon emissions in Lu'an city and the fragmentation of landscape pattern, the enhancementof distribution complexity, the increase of inter-patch dispersion, and the reduction of the maximum patch area. Landscapepattern change is a key driving force affecting carbon emissions in Lu'an city. Therefore, when formulating regionallow-carbon development strategies, it is necessary to comprehensively consider the dynamic changes of landscape pattern, andeffectively reduce carbon emissions and promote regional sustainable development by rationally adjusting land use patternsand optimizing land use measures.

关 键 词：土地利用 景观格局 碳排放 灰色关联分析法 六安市 

分 类 号：X171.1[环境科学与工程—环境科学]