作　　者： ; ;

机构地区： 云南大学生命科学学院生态学与地植物研究所

出　　处： 《云南大学学报（自然科学版）》 1992年第2期119-127,共9页

摘　　要： 本文研究了普洱县小黑江地区海拔890～920m的思茅松林分的生物量.结果如下:①随着林龄增加,林分总生物量增加但叶生物量减少.12年生林分总生物量109.7630 t/hm^2,叶生物量4.5307 t/hm^2,23年生林分总生物量137.6486 t/hm^2,叶生物量3.4861t/hm^2.②活生物量的层次分配顺序为:乔木层>灌木层>草本层.③活生物量在各器官之间的分配顺序为:树干>枝>根系>叶、根劲>果实.④90％～94％的活生物量集中分配在思茅松中. This paper studies the biomass of Pinus kesiya var. langbianensis stands which, with an elevation 890~ 920 m, locate in Xiaoheijiang district, Puer County, Yunnan. The results are as follows. 1. The total biomass of stands increases while that of needles decreases as the stand age advances. The total biomass and needle biomass of 12-aged stand are 109.7630 t/ hm2and 4.5307 t/ hm2, those of 23-aged stand are 137.6486 t/ hm2and 3.4861 t/hm2. 2. The allocation order of living biomass to community layers is: tree layer >shrub layer >herb layer. 3. The allocation order of living biomass to organs is: stem >branch > root system > root neck, needle >cone. 4. 90%~ 94% of stand living biomass allocates assembly to Pinus kesiya var langbianensis.

关 键 词： 思茅松 生物量 分配

领　　域： [生物学]