摘要
根据贵州省1995—2015年5期森林资源连续清查数据,采用材积源生物量法,研究贵州省森林碳储量的时空变化,为森林增汇及喀斯特植被生态恢复提供参考。结果表明:1995—2015年,贵州省森林面积净增长275.52×10^(4) hm^(2);森林碳储量增长显著,由1995年的76.89 Tg C增至2015年的253.65 Tg C,年增长率达11.49%,表现出较好的碳汇集作用,其主要原因是森林面积及乔木林质量的大幅提升,尤其针叶林是森林增汇的主要贡献者;森林碳密度增长显著,由1995年的23.57 C·hm^(-2)增至2015年的32.59 Mg C·hm^(-2),但仍处于全国较低水平,其主要原因是固碳能力弱的中幼林比例过大;森林碳储量、碳密度地区间分布不均,均为东南、北部较高,中、西部较低,其空间分布格局随时间变化不明显。以上分析表明,加强针叶林抚育管理将有利于森林增汇,对喀斯特植被恢复具有重要的意义。
Based on forest inventory data of 1995-2015 in Guizhou province, studies were made on spatial and temporal changes of forest carbon storage by biomass of volume source method. The results showed that the total carbon storage was obviously increased from 76.89 TgC in 1995 to 253.65 TgC in 2015 with an annual increment of 11.49%. The carbon density obviously increased from 23.57 Mg C/ha in 1995 to 32.59 Mg C/ha in 2015, resulted by large proportion of young and middle-aged forest. In Guizhou, forest carbon storage and density was higher in the northern and southeastern regions than that in the central and western regions. The spatial distribution pattern of forest carbon storage and density had no significant difference among different times.
作者
杜明凤
李明军
赵文静
DU Ming-feng;LI Ming-jun;ZHAO Wen-jing(School of Karst Science,Guizhou Normal University,Guiyang 550001,China;Guizhou Forestry Survey and Planning Institute,Guiyang 550003,China;School of Basic Medical Sciences,Guizhou Medical University,Guiyang 550025,China)
出处
《浙江林业科技》
2022年第1期41-47,共7页
Journal of Zhejiang Forestry Science and Technology
基金
贵州省科技支撑课题(黔科合支撑﹝2020﹞1Y120号)
贵州省科技支撑课题(黔科合支撑﹝2017﹞2525)
贵州师范大学资助博士科研项目(GZNUD﹝2018﹞27号)。
关键词
森林
碳储量
碳密度
动态变化
贵州
forest
carbon storage
carbon density
temporal-spatial dynamics
Guizhou
