滇西北油麦吊云杉林净第一性生产力的初步研究  

A preliminary study on net primary productivity of Picea brachytla var.complanata Forests in Northwest Yunnan Province,China

作　　者：吴兆录[1] 党承林[1] 和兆荣[1] 王崇云[1] 

机构地区：[1]云南大学生态学与地植物学研究所

出　　处：《云南大学学报（自然科学版）》1994年第3期240-244,共5页Journal of Yunnan University(Natural Sciences Edition)

基　　金：云南省应用基础研究基金

摘　　要：本文研究了滇西北油麦吊云杉林的净第一性生产力。林龄大，净第一性生产力也大。林龄约５０年和１５０年林分的净第一性生产力分别为５．０３１５ｔ／ｈｍ￣２·ａ和１３．７５６０ｔ／ｈｍ￣２．ａ；油麦吊云杉净第一性生产力占群落净第一性生产力的９２．０３％和６５．３９％；木材的净第一性生产力为１．３４３１和４．１４１７ｔ／ｈｍ￣２·ａ，仅占群落净第一性生产力的２６．６９％和３０．１０％。The net primary productivity(NPP)of Picea brachytla var. complanataforests which locate in Northwest Yunnan Province China with 28°05′N and 99°40′E,and an elevation 3500～3630 m is studied with the dimension analysis method. The total NPP of 50-aged stand is 5.0315 t / hm￣2·a and that of 150-aged stand is13.7360 t / hm￣2·a. Of the total NPP,the first tree layers which are composed of Piceabrachytla var.complanata as well as Abics georgei and Quercus ponnosa share 92.03 %and 75.31 % ,the second tree layers which are mainlv composed of Rhododendron,Betula delavayi,Sorbus,and Lonicera share 7.17%and 22.78 %,and the shrub lay-ers, herbaceous layers,and living ground layers shares respictively 0.44% and 0.13%,0.11 % and 0.01 %,0;24% and 1.72%。The tree layer NPP allocates differently toorgans’i,e,26.92 % and 30.69 % to stem wood,3.17%and 3.24% to stem bark,23.44% and 27.36% to branches,25. 57% and 20.74% to needles(leaves),3.62% and3.45 % to root necks.and 17.30% and 14.52% to root svstem. To the total NPP ofstands,92.77 % and 70.77 % is contributed by Picea brachytla var.complanataand Abies georgei.

关 键 词：油麦吊云杉 净生产力 生物量 

分 类 号：S791.180.2[农业科学—林木遗传育种]