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对云南省会泽县桤木Alnus cremastogyne人工林的调查分析结果表明,桤木人工林生长迅速,根系发达,林下灌草恢复快,生物多样性高,具有很好的土壤改良与水源涵养功能。桤木各部位的生物量依次为干>根>枝>皮>叶,其根系主要分布在0~40 cm的表层土壤中,占根系总量的96.14%;从桤木林分各层的生物量来看,乔木层生物量最大,占总生物量的84.93%,其次为枯落物层和草本层,灌木层较少。在分析桤木生物量基础上建立了桤木各器官生物量回归模型。表5参16
The investigation and analysis of Alnus cremastogyne plantation in Huize County, Yunnan Province showed that Alnus cremastogyne plantation grew rapidly and developed root system with fast recovery of shrubs under high forest, high biological diversity and good soil improvement and water conservation function. The biomass of all parts of Alnus cremastogyne was dry> root> branch> bark> leaf. The root system mainly distributed in the surface soil layer 0-40 cm, accounting for 96.14% of the total root system. From the point of view, the arbor layer biomass is the largest, accounting for 84.93% of the total biomass, followed by the litter layer and herb layer, shrub layer less. Based on the analysis of Alnus cremastogyne biomass biomass regression model was established. Table 5 参 参 16