Study on the Spatial Distribution of Carbon Density for Natural Larch Forest in Great Xing’an Mountain
Using the measured data for carbon storage of natural Larch forest in 2011 and 2012, the research analyzed the rela-tionships between the carbon density of individual tree components (stems, branches, foliage and roots)and total tree and altitude, canopy density , slope position , and forest stand density .The spatial analysis software of ArcGIS was used to draw the carbon density distribution map for the stem , branch, foliage, root and the total tree in this area based on the Kriging theory .The results showed that the carbon density for the tree components and total tree was closely related to the altitude , canopy density , and slope position . The carbon density of the components and the total amount reached the maximum value at the elevation of 633-683m and at the canopy density of 0.4-0.5, respectively.Meanwhile, the carbon density for the individual tree components and total decreased with the se-quence of downslope , valley, plain, and upslope.The carbon density for the components and total amount got the maximum value at the density of 3022-3521 trees per hectare .The Kriging method performed well in the computation of spatial carbon density distribu-tion for the natural Larch forest.The variation range for the carbon density of the stem was 5.99-46.33 t/hm2 .The variation range for the carbon density of the branch was 0.31-2.92 t/hm2 .The variation range for the carbon density of the foliage was 0.27-0.78 t/hm2 .The variation range for the carbon density of the root was 2.25-20.39 t/hm2 and the variation range for the carbon density of the total tree was 6.43-60.40 t/hm2 .To sum up, the variation regularity of carbon density for the components of the natural Larch was not the same , and the relationship between carbon density of differnet organs and forest stand factors was not the same .As a re-sult, the carbon density of the organs should be studied seperately .
Great Xing’an mountainnatural Larch forestcarbon densityKrigingspatial distribution
国家科技期刊平台
NSTL
万方数据
维普
