沙地樟子松人工林碳储量研究

Carbon Storage of Pinus sylvestris var.mongolica Litv.Plantation in Sandy Land

以科尔沁沙地樟子松人工林为研究对象,分别实地测定了造林10年、18年2、5年和30年樟子松人工林树木生物量、枯落物生物量、草本生物量和根系生物量,并研究了各碳库碳储量动态变化特征。结果表明:樟子松各器官平均碳含量为48.12%;随着林龄的增大,除了林下草本碳库碳储量减小外,樟子松地上部分碳库、枯落物碳库、根系碳库及土壤碳库碳储量均增加;在沙地上造林10年、18年2、5年和30年樟子松林总碳库储量分别为43 663.65 kg/hm2、68 777.10 kg/hm21、07 746.50 kg/hm2和144 764.25 kg/hm2,随着林龄的增大樟子松林总碳库储量也呈现增加趋势。

Taking Pinus sylvestris var.mongolica Litv.plantation in Kerqin Sandy Land as research object,the tree biomass,litter biomass,herb biomass and root biomass of Pinus sylvestris var.mongolica Litv.plantation planted for 10 years,18 years,25 years and 30 years have been determined,and the characteristics of danymic changes of carbon storage in each carbon pool have been also studied.The results show that the average canbon content in each organ of Pinus sylvestris var.mongolica Litv.is 48.12%.Increased with forest age,the caron storage of aboveground carbon pool of Pinus sylvestris var.mongolica Litv.,litter carbon pool,root carbon pool and soil carbon pool increases,except for the decrease of carbon storage in herb carbon pool.The total carbon storage of Pinus sylvestris var.mongolica Litv.plantation planted for 10 years,18 years,25 years and 30 years are 43 663.65 kg/hm2,68 777.10 kg/hm2,107 746.50 kg/hm2 and 144 764.25 kg/hm2 separately,which has an increasing tendency with the increasing of forest ages.