Study on Allocation of Aboveground Biomass and Optimal Model of Dendrocalamus latiflorus Shoot-producing

【Objective】Taking the Dendrocalamus latiflorus forests identified an ingredient base for Snail Rice-flour Noodle base in Liuzhou City as the research object, studying the aboveground organs biomass allocation characteristics and model the biomass for the aboveground organs of D. latiflorus. We aimed to provide theoretical basis for the reasonable management of D. latiflorus Shoot-producing Forest. 【Method】Using random sampling method to determine the biomass of the various organs of the above-ground parts. Using the multiple linear regression analysis to select the optimal fitting biomass model. 【Result】The results showed that: except for samples from Liunan area, the mean moisture content of the parts of aboveground organs decreased with the increase of age. Except for samples from Yufeng area, the water content of each organ of the same age grade was the as following order: bamboo branches > bamboo leaves > bamboo culms. The culm biomass allocation value was the largest among all organs. There was highly significant difference in total biomass among different bases (P<0.01). Among different bases, the largest total biomass was sample from Liubei area (18 584 g), followed from Liunan area (16 631 g), and from Yufeng area was the smallest (4 092 g). 【Conclusion】The optimal biomass models of the culm, branch, leaf and DBH, which can be used for estimating the biomass were established respectively as follows: W_culm=-0.000 05+2.295 1D-1 111.107D²(R²=0.946), W_branch=47.233D^0.707(R²=0.862), W_leaf=151.455D^0.570(R²=0.649). To a certain extent, our study results can provide theoretical basis for the scientific management of bamboo shoot.