摘要
碳储量既是评价森林生态系统结构和功能以及森林质量的重要指标，也是评估森林生态系统碳平衡的基础（王效科等，2000）。森林生物量和碳储量将为一个国家准确地评估其固碳潜力、发掘维护全球气候平衡的作用提供有效的数据支持（ Fang et al．，2001）。
Based on the data of the national continuous forest inventory from 2008 to 2013 ,single tree biomass of larch forest in northeastern China was estimate using biomass compatibility model of different tree species,and summed to plot biomass. Biomass expansion factor （ BEF） was calculated to estimate forest biomass,and then biomass was transformed into carbon storage with carbon concentration. With the inventory statistics,carbon storages of provinces at different stages were summarized. The results indicated that：1） vertical distribution of biomass for larch organs was： stem （48. 11%） 〉root （23. 04%） 〉 branch （16. 15%） 〉 bark （7. 2%） 〉 foliage （4. 76%）,aboveground biomass made up 76. 9% of the total,and root/shoot ratios were raised by age groups. 2） BEF values of larch field plot were reducing by age groups, around an average level of 0. 95. 3） total carbon storage of northeastern China was 167. 5x 10^6t,based on mid-aged forest,which accounting for 44. 22%,the maximum carbon density of mature forest reached to 55. 22 t·hm -2 ,and the mean value of all age groups was only 37. 06 t·hm -2 ,both were far below to the national average. 4 ） Heilongjiang province carbon storage as 128. 35x 10^6 t took the largest percentage of 76. 63%,all three provinces had virtually equal carbon density,which increased with age group,but grew slower after near-mature stage.
出处
《林业科学》
EI
CAS
CSCD
北大核心
2014年第6期167-174,共8页
Scientia Silvae Sinicae
基金
科技部863计划研究课题"典型应用领域全球定量遥感产品生产体系"(2013AA12A302)子课题"全球林业定量遥感专题产品生产系统"
国家林业局项目"全国森林生物量调查建模技术指导与模型建立"专题"基于森林清查资料的中国森林固碳潜力研究"
关键词
东北地区
落叶松林
森林资源连续清查
生物量
生物量转换因子
碳储量
northeastern China
larch forest
national continuous forest inventory
biomass
biomass expansion factor
carbon storage
