自然保护地2025，Vol.5Issue(4)：119-130,12.DOI:10.12335/2096-8981.2024021901
甘肃祁连山国家级自然保护区森林碳储量及固碳增汇潜力评估
Estimations of forest carbon storage and carbon sequestration potential of Qilian Mountain National Nature Reserve,Gansu Province
摘要
Abstract
[Objectives]Natural protected areas are the key supporting regions to implement carbon neutralization action in China.Accurate estimations of carbon storage and carbon sequestration potential of forest vegetation are important measures to address climate change and coordinate the coordinated and comprehensive regional eco-economy and social development.[Methods]The research area for the study was Qilian Mountain National Nature Reserve in Gansu Province.The data set for the study was derived from the forest resource survey of the second category.The tree species(group)and age group were the basis for evaluating the carbon storage and density and potential of forest vegetation in the nature reserves.The volume-source biomass method and the space-time substitution method were used to conduct this evaluation.[Results](1)The total carbon storage of forest vegetation in Qilian Mountain National Nature Reserve in Gansu Province was 1.41×107 Mg,and the average carbon density was 21.09 Mg/hm2.The proportion of carbon storage in arbor forests accounted for 73.62%,and the average carbon density was 6.45 times that of shrub wood and 1.15 times that of open forests.(2)The carbon storage and carbon density of forest vegetation were greatly various in different regions.The regions of Longchang River Reserve(1.50×106 Mg)and Longshou Mountain Reserve(1.91×104 Mg)had the highest and lowest carbon storage,and the areas with the highest and lowest carbon densities were Changling Mountain Reserve(39.7 Mg/hm2)and Dongdahe Reserve(12.68 Mg/hm2),respectively.The establishment of a national park system and a rational and orderly increase in afforestation tasks have a positive effect on improving the carbon sequestration capacity of forest vegetation.(3)The carbon storage of Picea crassifolia Kom.accounted for 85.59%of the total carbon storage in the forest area,and the average carbon density of Betula albo-sinensis Burk,pure forest and coniferous and broad-leaved mixed forest of Picea crassifolia Kom.was greater than 40 Mg/hm2,which was higher than that of other forest types.(4)The forest species with the greatest carbon storage and average carbon density are nature conservation forests and other shelter forests,respectively,and the forest age group with the largest carbon storage and average carbon density are mature forest and near-mature forest.(5)The total carbon sequestration potential of the forest area was 1.00×107 Mg,and the main contribution was the afforestation projects of other barren mountains and beaches suitable for afforestation.[Conclusions]The research results can provide valuable insights that can inform international climate negotiations and research endeavors concerning the Earth's carbon cycle.They also established a foundation for evaluating forest carbon sources and sinks,as well as for assessing the storage of carbon within forests.Furthermore,the study provided a technical support for forest management level evaluation and management measures tracking guidance.关键词
碳储量/碳密度/固碳增汇潜力/材积源生物量法/甘肃祁连山国家级自然保护区Key words
forest carbon storage/carbon density/carbon sequestration potential/volume-source biomass method/Qilian Mountain National Nature Reserve,Gansu Province分类
农业科技引用本文复制引用
牛赟,王顺利,王红义,余晓程,安金玲,徐响,许尔文,车宗玺..甘肃祁连山国家级自然保护区森林碳储量及固碳增汇潜力评估[J].自然保护地,2025,5(4):119-130,12.基金项目
甘肃省重点研发计划项目(23YFFG0002) （23YFFG0002）
甘肃省自然科学基金重点项目(22JR5RA769) （22JR5RA769）
甘肃省中央引导地方科技发展资金(22ZY2QG001). （22ZY2QG001）
