10年生灰木莲人工林生长规律和生物生产力  

The Growth Regularity and Biomass Productivity of 10-year-old Manglietia glauca Plantation

作　　者：刘俊[1] 滕秋梅 何斌[1] 罗柳娟 廖倩苑[1] 李远航[1] 舒凡[1] 

机构地区：[1]广西大学林学院,广西南宁530004 [2]广西环江县木论自然保护区管理局,广西环江547100

出　　处：《福建林业科技》2015年第4期33-36,共4页Journal of Fujian Forestry Science and Technology

基　　金：广西科学研究与技术开发计划课题(桂科攻11194008);国家自然科学基金项目(31160152)

摘　　要：以广西南宁市10年生灰木莲人工林为研究对象,研究其生长过程和生物生产力特征。结果表明:110年生灰木莲人工林平均胸径(去皮)、树高、单株材积分别达到13.4 cm、12.9 m、0.0909 m3;灰木莲树高和胸径生长均以前6 a最快,随后随林龄的增长而下降;材积生长在10年生时仍未达到峰值。210年生灰木莲人工林林分生物量为104.73 t·hm-2,其中乔木层、林下植被层和凋落物层生物量依次为93.54、0.24、10.95 t·hm-2,分别占89.31%、0.23%、10.46%。林分乔木层年净生产力为11.80 t·hm-2·a-1,不同器官净生产力大小顺序为树干、树叶、树根、树枝、树皮。The growth regularity and biomass productivity of the 10-year-old M. glauca plantation was studied in Nanning city of Guangxi,China. The results showed that,its average diameter at breast height（ without bark）,height and individual volume of 10-year-old trees came to 13. 4 cm,12. 9 m and 0. 0909 m3 respectively. Both tree height and DBH were grown fastest in the initial 6years,then decreased with the growth of age. After 10 years,it＇s annual volume growth still maintained a higher growth tendency. The biomass of stands of 10-year-old M. glauca plantation was 104. 73 t·hm- 2,in which the biomass were 93. 54,0. 24 and 10. 95 t·hm- 2for the arbor layer,understory vegetation layer and litter layer,accounting for 89. 31%,0. 23% and 10. 46%,respectively. The annual net productivity of arbor layer was 11. 80 t·hm- 2·a- 1. The net productivity of different organs were in order of trunk leaves root branch bark.

关 键 词：灰木莲 生长规律 生物量 生产力 

分 类 号：S718.556[农业科学—林学]