闽江下游福建青冈次生林群落的生物量特征

Biomass Characteristics of Secondary Forest Community of Cyclobalanopsis chungii in the Lower Minjiang River

采用标准木法(乔木层)及样方收获法(灌木层、草本层),研究了闽江下游黄槠林自然保护区福建青冈次生林的生物量及其分配规律。结果表明:森林总生物量为394.990 t.hm-2,其中树干为220.516 t.hm-2(55.82%),枝为48.229 t.hm-2(12.21%),叶为11.449 t.hm-2(2.90%),根为89.336 t.hm-2(22.62%)。生物量绝大部分积累于乔木层(89.95%)。群落各组成树种中福建青冈占显著优势,栲树、青冈、拟赤扬、黄瑞木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 method of sample tree （for tree stratum） and quadrat yield method （ for shrub layer and herbaceous layer）, biomass and its laws of distribution of secondary forest of Cyclobalanopsis chungii in Huangzhulin Nature Reserve in the lower Minjiang River were studied. The results showed that total biomass was 394. 990t·hm^-2, among which trunk 220.516 t·hm^-2 （55.82%）, branch 48.229t·hm^-2（ 12.21% ） ,leaf 11.449t·hm^-2 （2.90%） ,and root 89. 336 t·hm^-2（22.62% ）. Most of the biomass （89.95%） was in the tree stratum. Among all the tree species in the community, Cyclobalanopsis chungii was dominant, and Castanopsis fargesii, Cyclobalanopsis glauca, Alniphyllum fortunei, Adinandra millettii were important associated tree species in community. They controlled and influenced the construction and habitat of the community.