The Study Of Pinus Sylvestirs And Pinus Tabulaeformis Of Growth Conditions Under Different Microhabitat

This article based on the Hohhot Forestry College,the Arboretum,the manduhai park,the princess's mansion park,the northern suburbs park,the hulunbeier southern's road and Wulanchabu Liangcheng County manhan mountain three research place's planted forest, study of the Pinus sylvestris, Pinus tree survey for the data,Through calculation and analysis to create a Pinus sylvestris, Pinus growth model and from the known to identify the ecological factors in the growth of the trees have a major impact on the law of the factor.to indicate the estimate survey factor total growth intuitively along with the ageing change growth rule, the use of paper tree height, diameter at breast height growth of the total data, to identify suitable tree height growth equation fitting。The growth equation may describe the tree'estimate survey factor change rule accurately,obtains the mathematical model is this tree seed total growth process.Combination of survey information to the local climate, the use of multiple stepwise regression analysis to analyze the impact of tree growth to draw the main climatic factors for the annual average temperature, and the establishment of Pinus sylvestris, pine oil high year after year growth and diameter at breast height and age, between the annual average temperature of the regression model. A certain age range can be used as Pinus sylvestris, Pinus growth forecast tool.