采用经典的维量分析法，对昆明附近灰背栎林的生物量和净第一性生产力作了初步的研究。灰背栎林生物量和净第一性生产力都比较高，生物量３２８．８６６ｔ／ｈｍ￣２，净第一性生产力２１．２８６ｔ／ｈｍ￣２·ａ。认为灰背栎的丛生特性增加了森林乔木层的密度，从而导致较大的生物量和净第一性生产力。在滇中地区，灰背栋林已经十分稀少，应加强保护，让其发展 Using classical dimensional analysis method, the biomass and net primary productivity of Quercus glauca forest near Kunming were studied. The biomass and net primary productivity of Quercus acutissima forests were relatively high, with a biomass of 328.866 t / hm ~ 2 and a net primary productivity of 21.286 t / hm ~ 2 · a. The clustered nature of Quercus acutissima increases the density of forest tree layers, leading to greater biomass and net primary productivity. In the middle of Yunnan province, the dorsal gray-faced forests have become very scarce and should be strengthened for development