北京林业大学学报2026，Vol.48Issue(4)：64-71,8.DOI:10.12171/j.1000-1522.20250272
西北矿区不同植物配置模式的碳汇潜力评估
Carbon sink potential assessment of different vegetation configuration patterns in mining areas of northwestern China
摘要
Abstract
[Objective]To explore the ecosystem carbon storage under different plant configurations,and provide scientific basis for improving the ecological environment and enhancing carbon sink potential in the arid and semi-arid regions of northwestern China.[Method]Based on drought-resistant and carbon sequestering shrubs and herbs screened from preliminary experiments,six different plant configuration modes were designed using the principles of niche complementarity and functional synergy.A plant community construction experiment was conducted in a mining dump site to investigate the carbon storage and carbon sequestration effects of these configurations.[Result](1)The biomass carbon storage of different plant configurations ranged from 2.63 to 3.24 t/ha,which was 1.56-1.93 times that of the control plots.The soil carbon density significantly increased(5.98-8.67 t/ha,P<0.05).(2)The three plant configurations with the highest ecosystem soil organic carbon(SOC)storage were Caragana korshinskii+Astragalus laxmannii+Medicago sativa+Agropyron elongatum+Setaria viridis;Amorpha fruticosa+Caragana korshinskii+Lespedeza bicolor+Melilotus officinalis+Agropyron elongatum+Setaria viridis;and Lespedeza bicolor+Caragana korshinskii+Astragalus laxmannii+Medicago sativa+Elymus dahuricus+Setaria viridis,with values of 11.62,11.32,and 10.68 t/ha,respectively,representing an average increase of 56.95%compared to the control plot organic carbon stock.(3)All plant configurations functioned as carbon sinks,with sequestration intensities ranging from 1.41 to 2.20 t/ha.On average,carbon sequestration increased by 51.38%across all treatments.[Conclusion]During ecological restoration,scientifically designed plant configurations based on niche utilization can effectively enhance SOC density and strengthen the carbon sequestration capacity of ecosystems,achieving the dual goals of ecological restoration and carbon fixation.关键词
植物配置/碳储量/生态系统/生物量/土壤/西北矿区Key words
plant species combinations/carbon storage/ecosystem/biomass/soil/mining areas of northwestern China分类
农业科技引用本文复制引用
刘慧辉,刘斌,栗峰,周润霖,邢友,王春梅..西北矿区不同植物配置模式的碳汇潜力评估[J].北京林业大学学报,2026,48(4):64-71,8.基金项目
国家能源集团科技创新项目(GJNY-22-134). （GJNY-22-134）
