Relationship between Pinus densaa Ctarbon Density and Environment Factors in Shangri-La
Taking the Pinus densata forest in Shangri-La as research object,based on the previously con-structed Pinus densata carbon stock estimation,carbon density was calculated by using forest resource in-ventory data,and the relationship between Pinus densata carbon density and the various environment fac-tors was studied by DCA analysis method.The study results showed that in stand factors,the influence of average tree height to Pinus densata forest carbon density was the largest;in topography factors,the influ-ence of slope was the largest;in temperature factors,the average temperature difference between the hot-test and coldest months was the largest;in precipitation factors,the influence of precipitation of driest quarter and coldest quarter was the largest.The analysis for the comprehensive effect of environmental factors on Pinus densata forest carbon density showed that the first axis of DCA and Pinus densata forest carbon density had the largest correlation,which could well explained the comprehensive effect of envi-ronmental factors on the carbon density,and in 26 environmental factors,20 environment factors with the first axis of DCA had the extremely significant correlation,among which the correlation coefficient of stand factors was larger,which could explain stand factors were the main influencing factors of Pinus den-sata forest carbon density.
NETL
NSTL
万方数据
维普
