宝天曼华山松锐齿栎混交林生物量研究  

Biomass Study on Pinus armandii and Quercus acutidentata Mixed Forest in Baotianman Nature Reserve

作　　者：李鹿鑫 陈诗[1] 刘晓静 房会普 姚松 

机构地区：[1]河南农业大学林学院,郑州450002 [2]河南省宝天曼国家级自然保护区管理局,河南内乡474350

出　　处：《河南科学》2016年第4期511-516,共6页Henan Science

基　　金：中科院植被与环境变化国家重点实验室2012年开放课题(LVEC-2012kf06);林业公益性行业科研专项"气候变化对森林水碳平衡影响及适应性生态恢复"(201404201)

摘　　要：通过对宝天曼自然保护区1 hm^2华山松、锐齿栎混交林样地生物量的测定,探讨不同径级树木的生物量分配规律以及不同器官的生物量分配规律.研究结果表明,宝天曼华山松-锐齿栎混交林总生物量为293.89 t/hm^2,其中华山松的总生物量为5.01 t/hm^2,主要集中在树干中,占总量的56.89%,各器官的生物量大小关系为干>枝>根>叶,不同径级的生物量关系为II径级>Ⅲ径级>I径级,其中胸径在20 cm以上的华山松生物量占了华山松总量的92%;混交林中锐齿栎林总的生物量为288.88 t/hm^2,生物量也是主要集中在树干中,占了50.44%,不同器官的生物量大小关系为干>根>叶>枝,三个径级的生物量关系为II径级>I径级>Ⅲ径级.华山松和锐齿栎的平均生物量分别为13.33 kg/株和369 kg/株,且单株生物量都是随着胸径的增加而增大.Through determinating biomass of Pinus armandii and Quercus acutidentata mixed forest in BaotianmanNature Reserve,we investigated the distribution in biomass of different diameter classes of trees and the distribution ofbiomass of different organs. The result showed that the mixed forest biomass is 293.89 t·hm^2,and the total biomassof P. armandii is 5.01 t·hm^2,mainly concentrated in the trunk,which accounted for 56.89% of the total. Each organbiomass size relations for trunk〉branch〉root〉leaf. The comparison of different diameter in biomass is II diameter〉Ⅲ diameter〉I diameter,and the diameter of over 20 cm P. armandii biomass accounted for 92% of the total. Biomassin the mixed forest of Q. acutidentata total is 288.88 t·hm^2,mainly concentrated in the trunk,which accounted for50.44%.Different organ biomass size relations are trunk〉root〉leaf〉branch,and the diameter size biomass relations areII diameter〉I diameter〉III diameter. The average biomass per plant of P. armandii is 13.33 kg,while the Q. acutidentata is 369 kg. And the average individual biomass is increased with the increase in DBH.

关 键 词：华山松 锐齿栎 生物量 径级 

分 类 号：S718.5[农业科学—林学]