基于IPCC的河北省2005年森林碳储量

摘要

基于IPCC的方法,对河北省2005年森林及其它木质生物质碳储量进行了研究.结果表明,河北省2005年森林和其它木质生物质总碳储量为6 111.96万t,折合固定CO2的量为22 410.52万t.现有林以幼、中龄林为主,林分平均碳密度较低,仅为10.32 t·hm-2；按优势树种(树种组)排序,最大的5个碳库为桦树、栽培杨、栎类、油松和落叶松.灌木林和经济林是河北省森林的两个重要碳库,分别占总碳储量的13.98％和14.99％.%The carbon storage in woody biomass and forests was estimated based on the forest inventory data of 2005 in Hebei Province, according to the IPCC method for national greenhouse gas inventories. Results showed that the total carbon storage in forest biomass was 6. llxlO7 t in 2005 , which was equivalent to carbon dioxide fixation of 2. 24×108 t. Young and middle aged forests were dominant in Hebei, but the average carbon density of the young and middle-aged forests was only 10. 32 t ? Hm-2. Betulla spss. , Populus spp. , Quercus spp. , Pinus tabulaeformis and Larix principis-rupprechtii were the main dominant tree species for the contribution to the total forest carbon storage. The carbon storage of shrubs and economic for ests played key roles in the total forest carbon sink, accounting for 13. 98% and 14. 99% of the total carbon storage re spectively.