2013•Hebei Journal of Forestry and Orchard ResearchRequires access
Study on the model relationship between net productivity and stand age, site index,stand density of Chinese pine in northern Hebei
Xiongbin Wang
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Abstract
Based on surveies on standard plots of Chinese pine(Pinus tabulaeformis),the guiding curve model of tree height with stand age was established to calculate site index of each standard plot.The relationship models of individual biomass with tree height and DBH were established,respectively,to calculate stand biomass.The relationship models of stand biomass with stand age,site index and stand density were established,respectively,in order to obtain the relationship models of stand net productivity with stand age,site index,and stand density.These results will provide a theoretical basis for improving the level of forest management and stand productivity.