大兴安岭南段华北落叶松人工林碳储量及分配特征研究  

Carbon Storage and Its Distribution Characteristics in the Planted Forest of Larix prinicipis in Southern Daxinganling

作　　者：舒洋[1] 周梅[1,2] 赵鹏武[1,2] 曾楠[1] 石亮[1] 王梓璇[1] 王鼎[1] 葛鹏[1] 张波[1] SHU Yang;ZHOU Mei;ZHAO Pengwu;ZENG Nan;SHI Liang;WANG Zixuan;WANG Ding;GE Peng;ZHANG Bo(Inner Mongolia Agricultural University, College of Grassland, Resources and Environment, Huhhot 010020, China;Saihanwula Forest Ecosystem National Research Station, Chifeng 025150, China)

机构地区：[1]内蒙古农业大学草原与资源环境学院,内蒙古呼和浩特010020 [2]内蒙古赛罕乌拉森林生态系统国家定位观测研究站,内蒙古赤峰025150

出　　处：《生态环境学报》2016年第10期1604-1611,共8页Ecology and Environmental Sciences

基　　金：国家自然科学基金项目(41530747);内蒙古自治区科技计划项目(20110527)

摘　　要：以大兴安岭南段内蒙古赛罕乌拉森林生态系统国家定位观测研究站为研究区,以华北落叶松(Larix prinicipis)人工林为研究对象,采用野外样地实测调查与室内分析相结合的方法对华北落叶松人工林碳储量及分配特征进行了研究。结果表明:不同林龄华北落叶松人工林生态系统碳储量表现为32 a(205.83 t·hm^(-2))>28 a(186.38 t·hm^(-2))>16 a(155.84 t·hm^(-2));华北落叶松人工林植被层碳储量为9.11~26.73 t·hm^(-2),占总碳储量的5.85%~14.0%,随着林龄的增加而先增加后减少;枯落物层碳储量为0.29~0.40 t·hm^(-2),占总碳储量的0.19%,随着林龄的增加其所占比例趋于稳定;土壤层碳储量表现为为32 a(178.70t·hm^(-2))>28 a(159.92 t·hm^(-2))>16 a(146.44 t·hm^(-2)),占总碳储量的比例为86.82%~93.96%,随着林龄的增加其所占比例呈递减趋势;不同林龄阶段碳储量均表现为土壤层>植被层>枯落物层,地下>地上;植被层碳储量以乔木层最大(6.85~26.46t·hm^(-2)),占比为75.21%~98.99%,而乔木层碳储量主要分布在树干(2.53~14.98 t·hm^(-2)),占乔木层碳储量的比例为36.93%~56.61%,且随林龄的增加而增加;土壤层碳储量主要集中在0~30 cm土层,占土壤层总碳储量的70.78%~78.82%。研究结果可为华北落叶松人工林经营管理和高效培育提供理论依据。This study was conducted in Saihanwula forest ecosystem national research station in southern Daxinganling. Our main subjects were to determinate carbon storage and distribution characteristics of carbon storage in the planted forest of Larix prinicipis,by using the method of combination of plot-level survey and laboratory analysis. The results showed that the total carbon storage of Larix prinicipis plantation ecosystem was in the order of 32 a (205.83 t·hm-2)>28 a (186.38 t·hm-2)>16 a (155.84 t·hm-2); Carbon storage of the vegetation layer was 9.11~26.73 t·hm-2, contributing 5.85%~14.0% to the total carbon storage of the ecosystems, as it grew and then decreased with age; The carbon storage of litter layer was 0.29~0.40 t·hm-2, which contributed 0.19% to the total carbon storage of the ecosystems, with the increase of forest age tends to be stable; The order of carbon storage of soil layer was 32 a (178.70 t·hm-2)>28 a (159.92 t·hm-2)>16 a (146.44 t·hm-2), contributing 86.82%~93.96% to the total carbon storage of the ecosystems, as it decreased with age; The carbon storage of Larix prinicipis plantation stage characterized by soil layer>vegetation layer>litter layer, underground>aboveground; The biggest carbon storage of the vegetation layer was the tree layer (6.85~26.46 t·hm-2), about 75.21%~98.99%, in which the trunk dominants (2.53~14.98 t·hm-2) of 36.93%~56.61%, and the carbon storage increased with the forest age. The carbon storage in the soil layer mainly concentrated in 0~30 cm soil layer, which contributed 70.78%~78.82% to the total soil carbon storage. The results can provide theoretical basis for Larix prinicipis plantation management and efficient cultivation.

关 键 词：大兴安岭南段 华北落叶松 人工林 碳储量 分配特征 

分 类 号：S718.5[农业科学—林学] X171.1[环境科学与工程—环境科学]