甘肃武都五凤山林区油松人工林的生物量和生产力研究  

Studies on biomass and productivity of Pinus tabulaeformis planation in the Wufengshang of Wudu,Gansu Province

作　　者：杨东[1] 杨秀琴[2] 

机构地区：[1]西北师范大学地理与环境科学学院,甘肃兰州730070 [2]兰州市第三中学,甘肃兰州730030

出　　处：《西北师范大学学报（自然科学版）》2004年第1期70-75,共6页Journal of Northwest Normal University(Natural Science)

基　　金：国家杰出青年科学基金资助项目(49928101)

摘　　要：对甘肃武都五凤山林区35a生油松人工林的生物量和生产力进行了研究.结果表明,该林区的生物量为114 613t/hm2,净生产力为12 917t/hm2·a;乔木层生物量为113 046t/hm2,净生产力为11 825t/hm2·a,叶面积指数(LAI)为13 0843t/hm2,叶的净同化率(NAR)为0 796t/hm2·a,属于较高生产力水平.The biomass and productivity of 35-year-old Pinus tabulaeformis planation are studied at a permanent ecosystem plot in Wufengshan forest region,Gansu Province.Results show that the biomass and the net productivity of this stand are 114.613?t/hm^2 and 12.917?t/hm^2·a respectively.The biomass,net productivity, LAI and net assimilatory rate of tree stratum are 113.046?t/hm^2,11.825?t/hm^2·a,13.0843?t/hm^2 and 0.796?t/hm^2·a correspondingly.The productivity of this plantation is considered to be of relatively high level.

关 键 词：油松人工林 生物量 生产力 

分 类 号：Q948.1[生物学—植物学]