Abstract
The stand biomass and primary net productivity of artificial tropical rainforest in Xishuangbanna were estimated, based on sample tree method and harvesting method. The results showed that the standing biomass was 390.4 t.hm-2, of which, 362.5 t.hm-2(92.8%) were contributed by tree layers. The biomass of shrub and inter-layer plants (including epiphytes) was 19.3 t.hm-2(4.9%) and 3.6 t.hm-2(0.9%), respectively, and that of herbaceous layers was 5.0 t.hm-2. The primary net productivity of the stand was 2227.3 g.m-2.yr-1, of which, 1553.5 g.m-2.yr-1(69.7%) were contributed by tree layers. In the allocation of primary net productivity in different parts of trees stems showed the highest net productivity, accounted for 42.0%. Leaves and branches were accounted for 30.2% and 13.5%, respectively. The leaf area index (LAI) was 7.061. The optimum regression models of different dominant plants and organs of the sample trees of tree layer in the artificial tropical forest were built.
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