皖南山区森林碳储量及其动态变化
Forest carbon storage and dynamic change in the mountain region of southern Anhui
毛行元 1徐志扬1
作者信息
- 1. 国家林业局华东林业调查规划设计院,浙江 杭州310019
- 折叠
摘要
基于全国第七次、第八次、第九次森林资源连续清查安徽省皖南山区的清查数据,运用生物量换算因子连续函数法,对皖南山区森林碳储量及其动态进行了估算.结果表明:皖南山区森林碳储量从2004年的4491.01万t增加到2014年的6223.13万t,年平均净增173.21万t,年平均净增率3.86%.乔木林占森林碳储量主导地位,比重不断提高,由2004年的74.99%增加到2014年的79.85%.乔木林中,中龄林碳储量、面积均占优势,幼幼龄、中幼龄、成熟林碳储量均增加,中龄林面积减少,幼龄林、成熟林面积增加,幼幼龄、中幼龄、成熟林碳密度总体呈增加态势.8个主要乔木树种的碳密度总体上呈增加趋势,杉木、阔叶混交林、马尾松、针阔混交林、栎类在乔木林中占优势,阔叶混交林碳储量和面积表现出显著增加,杉木、马尾松有所减少.总体来看,皖南山区森林碳汇发展水平仍然不高.因此,今后在增加森林面积的同时,仍需采取合理经营管理措施,促使森林质量和碳汇水平不断提高.
Abstract
Based on data from the 7th,8th and 9th Chinese continuous national forest inventory in Anhui Province, forest carbon storage and dynamic change in the mountain region of southern Anhui were estimated with variable biomass expansion factor function (BEFF) method. The result showed that the total forest carbon storage in the mountain region of southern Anhui was increased continuously from 4 491.01×104t in 2004 to 6 223.13×104t in 2014,and the annual average increment was 173.21×104t,with the annual average increment rate 3.86%. Arbor forest played the leading role in the forest carbon storage,with a continuously increased proportion,from 74.99% in 2004 to 79.85% in 2014. The middle aged forest played a dominant role in carbon storage and area in the arbor forest. The carbon storage and density of young forest, middle age forest and mature forest was increased, with the decreased area of middle aged forest and increased of young forest and mature forest.The carbon density of eight main species played a increasing tendency on the whole.The area and carbon storage of Cunninghamia lanceolata,broad-leaved forest,Pinus massoniana, coniferous and broad-leaved mixed forest,Quercus spp. played an advantage role in the arbor forest,with the outstanding increment of broad-leaved forest and a little decrement of Cunninghamia lanceolata, Pinus massoniana. On the whole,the arbor forest carbon sink was still not in the high level. Therefore,it still required to take proper management measures to promote continual improving of forest quality and carbon sink level at the same time of expanding forest area in the future.
关键词
生物量换算因子/皖南/山区/森林碳储量/碳密度/动态变化Key words
biomass expansion factor/southern Anhui/mountain region/forest carbon storage/carbon density/dynamic change引用本文复制引用
出版年
2018
国家科技期刊平台
NSTL
维普
万方数据