基于森林清查资料的福建森林植被碳储量及其动态变化

摘要

Carbon storage in forest vegetation of Fujian Province plays a significant role in the terrestrial carbon budget in China . Data from seven Chinese national forest inventories and 5 059 permanent plots collected between 1978 and 2008 were used to estimate vegetation carbon storage in the whole province .In addition, uncertainty analysis was conducted to provide the range of our estimations.Forest vegetation carbon storage increased from 136.51 Tg in 1978 to 229.31 Tg in 2008, and the forest area increased from 8.55 ×106 to 11.50 ×106 hm2 .Carbon storage varied with dominant forest species , forest age and forest ownership , suggesting that increases in vegetation carbon potentials can be achieved through selection of forest species and management of age structures . Vegetation carbon storage can be further increased by increasing the proportion of mature , broadleaved and state-owned forests.%定量核算福建省森林碳汇潜力对碳循环研究从区域尺度向全国尺度转换，协调能源需求与碳排放之间的矛盾都具有深远意义。采用森林清查资料着重探讨福建省不同林分类型、林龄结构和土地权属变化对森林植被碳储量的影响。从1978年到2008年，森林面积从8．55×106 hm2增加到11．50×106 hm2，森林植被碳储量从136．51 Tg增加到229．31 Tg，森林植被碳储量随着林分类型、林龄结构和土地权属的变化而变化。结果表明，可以通过选择林分类型和林龄结构来实现森林植被碳储量的增减，可通过增加成熟林、阔叶林和国有林的比例来进一步提升福建森林的碳汇能力。