通过贡嘎山暗针叶林带典型区自然与退化生态系统生物量、净初级生产量、光合生理特征、土壤CO2排放通量及土壤温度变化等内容的观测研究，从一个侧面揭示了研究区山地暗针叶林带不同森林生态系统类型生态功能的现状特征。自然型生态系统生物量和净初级生产量分别具有耐阴的光合特性，水分利用速率较高，而蒸腾速率较低。轻度、中度和重度退化生态系统生物量分别为367．01、121．80和0．51t/hm62。净初级生产量分别为9．86、5．64和0．35t／hm^2·a^-1；退化生态系统建群种光饱和点、净光合速率及蒸腾速率均比自然生态系统建群种高，而水分利用效率则相应较低。另外，不同生态系统类型土壤CO2排放量与地面生态系统结构和5cm深土壤温度有密切的关系。

Biomass, net primary productivity, photosynthetic physiological features, number of CO₂ release and tempture in soil of the natural and degraded ecosystems in the case study area in the Gongga Mountain were studied. Characteristics of ecological function of the different forest ecosystem types in the mountain dark coniferous forest zone in the studied area were revealed, throught the study metioned above. Biomass and net primary productivity of the natural ecosystem are 351.84t hm² and 11.33 t hm²·a^-1 respectively, of which the constructive specie (Abies fabris) has low photo-saturation point and transpiration rate, and high water utilization rate and photosynthetic rate under dark eco-environment condition .Biomasses of light, middle and heavy degraded ecosystems are 267.01, 121.80 and 0.51t hm² respectively, and net primary productivities are 8.86, 5.64 and 0.34 t hm²·a^-1. Photo-saturation point, net photosynthetic rate and transpiration rate of the constructive species of the degraded ecosystems are much higher than that of the constructive specie of the natural ecosystem, but water utilization rate is very low. Moreover, a number of CO₂ release from soils of the different degraded ecosystems relate with ecosystem structures and temperature of soil of 5 cm deep.