武夷山丝栗栲天然林群落的生物量及其分配规律

Biomass Characteristics and Allocation of Castanopsis fargesii Natural Stand in Wuyishan Mountains

采用标准木法(乔木层)及样方收获法(灌木层、草本层),研究了武夷山自然保护区丝栗栲天然林的生物量及其分配规律。结果表明:森林总生物量为312.082 t/hm2,其中树干为172.968 t/hm2(55.42%),枝为40.677 t/hm2(13.04%),叶为10.199 t/hm2(3.27%),根为67.485 t/hm2(21.62%),生物量绝大部分积累于乔木层(78.99%)。群落各组成树种中丝栗栲占显著优势,浙江润楠、黄瑞木、树参、虎皮楠等为群落重要伴生树种,制约和影响着群落的结构和生境。

Based on the standard trees （for tree layer） and clear cut（for shrub and herbaceous） ,the biomass and its allocation of Castanopsis fargesii stand in Wuyishan Natural Reserve were studied. The results showed that the total biomass was 312. 082 t/hm^2, in which the biomass of trunk was 172. 968 （55.42%） , branch 40. 677（13.04%）, leaf 10. 199（3.27%）, and root 67. 485（21.62%）. Most of the biomass （78.99%） was in the tree layer. According to the biomass allocation within tree species, Castanopsisfargesii was dominant , and Machilus chekiangensis, Adinandra rnillettii, Dendropanax chevalieri, Daphniphyllurn oldnamli were also important in the community. They controlled and influenced the sturcture and environment of the community.