黑龙江省不同用地类型固碳量影响研究  

Study on the Influence of Carbon Storage by Different Types of Land Use Types in Heilongjiang Province

作　　者：潘宥承 李朦朦[1] 吴远翔[1] PAN Youcheng;LI Mengmeng;WU Yuanxiang(School of Architecture and Design Harbin Institute of Technology Key Laboratory of National Territory Spatial Planning and Ecological Restoration in Cold Regions Ministry of Natural Resources,Harbin 150006 China)

机构地区：[1]哈尔滨工业大学建筑与设计学院,自然资源部寒地国土空间规划与生态保护修复重点实验室,哈尔滨150006

出　　处：《黑龙江国土资源》2024年第10期2-9,共8页Heilongjiang land and Resources

摘　　要：在当前气候变化影响下,高效发挥生态系统固碳功能已成为区域可持续发展的关键议题。研究旨在探寻影响黑龙江省不同生态用地类型固碳量的关键景观格局特征,以期为地区碳中和策略提供科学依据和实践指导。利用网格分析法对研究区域进行网格划分,采用净生态系统生产力(NEP)作为固碳量指标,通过Fragstats软件计算景观格局指标,使用SPSS软件对固碳量及格局指标进行斯皮尔曼相关性分析。研究结果显示,2000至2022年间黑龙江省林地、耕地和草地的单位面积年均固碳量均呈现出上升趋势,相关性分析结果发现,景观面积百分比、最大斑块指数、斑块邻接度、连通度、景观破碎度、聚集度共六个格局指标与黑龙江省林地、耕地固碳量之间存在显著相关性,并且这些指标对林地与耕地固碳量的正负影响模式相反,反映出不同生态用地类型在景观配置与碳固存功能上的复杂交互作用。In the context of ongoing climate changes it has been an crucial issue to enhance the carbon sequestration capacity of ecosystems for regional sustainable development.This study aims to identify the key landscape pattern characteristics influencing carbon sequestration of different ecological land-use types in Heilongjiang Province providing scientific evidence and practical guidance for regional carbon neutrality strategies.By employing a grid-based analytical method the study area is subdivided into grids and Net Ecosystem Productivity NEP is used as the carbon sequestration indicator.Landscape pattern metrics are calculated using the Fragstats software and Spearman's correlation analysis is performed in SPSS to examine the relationships between carbon sequestration and these metrics.The results show that from 2000 to 2022 the annual average carbon sequestration per unit area of forests farmlands and grasslands in Heilongjiang Province exhibits an upward trend.Correlation analysis further reveals that six landscape pattern metrics including percentage of landscape area largest patch index patch adjacency connectivity landscape fragmentation and aggregation are significantly correlated with carbon sequestration in forests and farmlands.Moreover these metrics exert opposite positive and negative effects on carbon sequestration across forests and farmlands indicating complex interactions in landscape configuration and carbon storage functions among different ecological land-use types.

关 键 词：景观格局 净生态系统生产力 黑龙江省 

分 类 号：X321.7[环境科学与工程—环境工程]