抚育间伐对马尾松人工林生物量与碳贮量的影响  

Effects of Thinning on the Biomass and Carbon Storage in Pinus massoniana Plantation

作　　者：明安刚[1,2] 张治军[3] 谌红辉[2] 张显强[2] 陶怡[2] 苏勇 

机构地区：[1]中国林业科学研究院森林生态环境与保护研究所,北京100091 [2]中国林业科学研究院热带林业实验中心,凭祥532600 [3]国家林业局昆明勘察设计院,昆明650216 [4]南宁树木园,南宁530031

出　　处：《林业科学》2013年第10期1-6,共6页Scientia Silvae Sinicae

基　　金：林业公益性行业科研专项(201104006);国家"十一五"林业科技支撑计划专题广西子专题(2006BAD24B03013);"十一五"广西林业科技项目(桂林科字2009[08]);中国林业科学研究院热带林业实验中心主任基金项目(RL2011-02)

摘　　要：对广西大青山林区不同间伐强度下25年生马尾松人工林碳贮量进行研究。结果表明:间伐措施有利于提高马尾松乔木层生物量和碳贮量,不利于林下地被物和凋落物生物量和碳的累积,重度、中度和轻度间伐下马尾松林乔木层碳贮量分别高出对照11.47%,11.78%和14.49%,林下植被层分别低于对照20.82%,19.80%和0.20%,凋落物层分别低于对照15.81%,2.87%和27.31%;间伐对土壤层碳贮量和生态系统碳贮量总量无显著影响,但有降低土壤碳贮量和增加生态系统碳贮量总量的趋势,土壤碳贮量分别低于对照4.15%,1.83%和5.53%,生态系统碳贮量总量分别高出对照2.62%,4.19%和3.58%,但差异均未达到显著水平;间伐措施对各器官碳贮量在乔木层的分配无显著影响,各处理均表现为树干(53.38%～ 60.12%)>树根(15.70%～ 16.74%)>树皮(12.88%～ 14.38%)>树枝(7.53%9.12%)>树叶(2.27%～ 2.88%)。The biomass and carbon storage of 25-year-old Pinus massoniana plantations in different thinning intensities were investigated in the Daqingshan mountain in Guangxi. The results showed that thinning increased the biomass and carbon storage in tree layer,but decreased the biomass and carbon storage in the understory layer and litter layer. Carbon storage of tree layer with intensive thinning,intermediate thinning and mild thinning was greater than that of control by11. 47%,11. 78% and 14. 49%,respectively. The understory layerhad less carbon storage than the control by 20. 82%,19. 80% and 0. 20%,respectively. The litter layer had less carbon storage than the control by 15. 81%,2. 87%,and27. 31%,respectively. Thinning tended to decrease carbon storage in the soil layer while to increase the total carbon storage in the ecosystem. The soil carbon storage with various thinning intensities was less than that of control by 4. 15%,1. 83% and 5. 53%,respectively,and the total carbon storage in the ecosystem was less that that of control by 2. 62%,4. 19% and 3. 58%,respectively. Thinning had no significant effect on the distribution of carbon storage in the tree layer,and different thinning intensities had the same distribution order,that is,stem（ 53. 38%- 60. 12%） root（ 15. 70%-16. 74%） bark（ 12. 88%-14. 38%） branch（ 7. 53%-9. 12%） leaf（ 2. 27%-2. 88%）.

关 键 词：抚育间伐 马尾松 人工林 生物量 碳贮量 分配 

分 类 号：S753.53[农业科学—森林经理学]