Abstract:

Divided into 3 slope positions, the growth and biomass of 28-old-year MytiLaria Laosensis plantation in Daqingshan Mountain of Guangxi were studied by the relative growth method to clarify the affection of slope position on the growth and biomass of MytiLaria Laosensis plantation. The results showed that slope position could significantly influence the DBH and height growth, and the average DBH and average tree height were reflected as downslope>midslope>upslope; the biomass of plantation community and it’s components as well as the biomass of the organs of the tree layer were influenced significantly by the slope position. The biomass in the downslope was the highest, flowed by the midslope, upslope was the lowest.