黧蒴等树种在3种人工松林中的生长量和生物量比较

对南亚热带3种人工松林中黧蒴、红桂木、灰木莲和竹节树4个树种的生长量和生物量进行了试验分析,结果显示,4个树种生长量在不同林分有很大差异:其中,黧蒴在3种林分中的生长量排序为湿地松林>加勒比松林1>加勒比松2;红桂木在加勒比松林2和湿地松林中无显著差异,均高于加勒比松林1;灰木莲和竹节树在湿地松林中最高,2个加勒比松林无明显差异。生物量排序与生长量排序相同。同一林分不同树种的生长量存在明显差异,树高和冠幅生长排序为灰木莲>黧蒴>红桂木>竹节树,地径为灰木莲>竹节树>红桂木>黧蒴;总生物量年均增长量排序为竹节树>灰木莲>黧蒴>红桂木。

Comparative Study of Growth and Biomass of four Species

The paper studies and analyzed the growth and biomass of 4 tree species in three pinus plantation stands in subtropical region. The result indicated: the four species in different stands were greatly different in growth, and the growth of Castanopsis fissa was ordered in accordance with stand types by P. elliottii stand >P. caribaea stand No.1> P. caribaea stand No.2; the growth of Artocarpus lingnanensis had no difference in P. caribaea stand No.2 and P. elliottii stand, both of them higher than P. caribaea stand No. 1; Michelia macclurei and Carallia brachiata had the largest growth in the P. elliottii stand and had no difference in P. caribaea stand No.1 and P. caribaea stand No.2. The biomass had the same ordering with growth. Different species in the same stand had obvious difference in growth. The tree height and crown width could be ordered by M. macclurei>C. fissa> A. lingnanensis > C.brachiata, and the ground diameter had the order of M. macclurei> C. brachiata> C. fissa >C. fissa. The annual increase of the total biomass was ordered by C. brachiata> M. macclurei> C. fissa> A. lingnanensis.