摘要
以山西太岳山自然保护区油松林(Pinustabulaeformis forest,PF)、辽东栎林(Quercusliaotungesis forest,QF)、油松辽东栎混交林(mixed forest,MF)为研究对象,计算了3种林分类型的碳储量及其在乔木层、灌木层、草本层、地表凋落物和0~20 cm土层中的分配比例.结果表明:PF、QF和MF的碳储量分别为123.01、153.53、132.93 t·hm^(-2),其地上碳储量分别占总碳储量的70.83%、60.94%、57.50%;地上碳储量以乔木层最高,其占总碳储量的比例在PF、QF、MF中分别是65.96%、58.07%、54.01%;3种林型灌木、草本和地表凋落物的碳储量较少,占总碳储量的比例不到5%;PF、QF、MF、0~20 cm土层有机碳储量分别为57.88、54.07、33.45 t·hm^(-2),占总有机碳储量的比例分别为33.04%、36.43%和23.85%;根系碳储量在PF、QF和MF中分别为2.04、1.92、1.49 t·hm^(-2),占其总碳储量的1.74%、1.26%、1.19%.太岳山3种林分类型碳储量的空间分配格局为地上乔木层、表层土壤、根系中的碳储量比例约为6∶3∶1.
Carbon （C） storage and its distribution among aboveground parts, including tree, shrub, herb layers, floor litter, and soils in the depth of 0-20 cm were investigated in Pinustabu/aeformis forest（PF） , Quercus/iaotungesis forest （QF） , and PF x QF mixed forest （MF） in Taiyue natural reserve. Results showed that total C stock averaged at 123.01, 153.53, 132.93 t ？ hm 2 in PF, QF, and MF, respectively, with C stock of aboveground parts accounting for 70. 83%, 60.94%, 57.50% of the total. And aboveground C stock most enriched in tree layer, peaking at 65.96%, 58.07%, and 54.01% in PF, QF, and MF, respectively. To-tal C stock for shrub and herb layers and floor litter was less than 5% for each forest type. When it comes to underground part, C stock of soil in the depth of 0-20 cm was 33.45, 54.07, 57.88 t ＊ hm 2 in PF, MF, and QF, reaching 23.58%, 36.43% and 33.04% of total C stock. Carbon stock for root was 2.04, 1.92, 1.49 t ＊ hm-2 for PF, QF and MF, accounting for 1.74%, 1.26%, 1.19% of total C stock. Generally, C stock ratio among aboveground arborous layer, surface soil and root was 6 ？ 3 ？ 1 in temperate forest ecosystem in Taiyue Mountain.
出处
《福建农林大学学报（自然科学版）》
CSCD
北大核心
2018年第1期54-59,共6页
Journal of Fujian Agriculture and Forestry University:Natural Science Edition
基金
“十三五”国家重点研发计划项目(2016YFD0600205).
关键词
林型
有机碳储量
空间分配格局
乔木层
土壤
forest type
organic carbon stock
spatial distribution pattern
arborous layer
soil
