摘要
本文研究了滇西北油麦吊云杉林的生物量。林龄大生物量也大，林龄约５０年和１５０年的林分，生物量分别为１２９．５２２９ｔ／ｈｍ￣２和３１３．９８５３ｔ／ｈｍ￣２；在各器官中，木材生物量最大，占群落总生物量的５３．２０％和６０．２５％；乔木一层的生物量占群落总生物量的９３．８０％和９６．３８％；油麦吊云杉的生物量占群落生物量的７６．７８％和７７．１２％。
The biomass of Picea brachytla var.complanata forests, whichlocate in Northwest Yunnan Province China with 28°05′Nand 99°40′E,and an el-evation3500～3630 m,is studied with the dimension analvsis method.The totalbiomass of 50-aged stand is l29.5229 t/hm￣2 and that of 150-aged stand is313.9853 t /hm￣2. Of the total biomass,the first tree layers whih are composed ofPicea brachytla var.complanata as well as Abics georgei and Quercus ponnosashare 93.80% and 96.38 % ,the second tree layers which are mainly composedof Rhododendron,Betula delavayi,Sorbus,and Lonicera share 5.38% and 2.89%,and the shrub layers,herbaceous layers, living ground layers,and litte sharesrespictively 0.10% and 0.03%,0. 02% and 0. 01%,0.07 and 0.37%, 0.64% and0.32 %. The tree layer biomass allocates differently to organs,i,e,53. 64% and60.69% to stem wood, 7.8 1 % and 8.23% to stem bark, 12.85% and 12.77% tobranches,7.45% and 4.84% to needles(leaves),7.62%and 5.86% to root necks,and10.63% and 7.41% to root svstem. To the total biomass of stands,77.54% is con-tributed by Picea brachytla var.complanata.
出处
《云南大学学报（自然科学版）》
CAS
CSCD
1994年第3期230-234,共5页
Journal of Yunnan University(Natural Sciences Edition)
基金
云南省应用基础研究基金
关键词
油麦吊云杉
生物量
云南
云杉
Picea brachytla var.complanata,biomass,northwest yunnan province
