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作 者 ：刘茜 刘煊章 张昌剑

期 刊 ：林业科学 1997年 33卷 zk2期 页码：157-166

关键词：天然次生林；白栎；檫木；生物量；营养元素；

Keywords:Natural secondary forest, Quercus fabri, Sassafras tzumu, Biomass, Nutrient elaments,

摘 要 ：对湖南沅陵县以白栎为主的天然次生针阔叶混交林的生物量和营养元素含量进行了研究。结果表明，平均年龄24年，密度为2800株/hm²的林分生物量为150.77t/hm²。其中乔木层生物量为112.65t/hm²，净生产力为8.7t/hm²·a。林分主要组成树种之间及各林木不同器官之间的营养元素含量均存在差异。

Abstract:The biomass and nutrient contents of a natural secondary broadleaved-coniferous forest with dominant of Quercus fabri located in Yuanling，Hunan，has been studied．The results showed that the biomass of the community was 150.77t/hm²，the biomass and net production of the arbor layer were 112.65t/hm² and 8.78t/hm²．Nutrient contents were significantly different inter main tree species and between organs of the same species．

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