Comprehensive Study on the Forest Soil in the Forest Ecosystem Health
this paper chose Tian shan forest ecosystem research station as the research spot, and chose the Picea schrenkiana var. tian schanica （ Rupr. ） Chen et Fu as the research target, random selecte belt transect and bandwidth is 200m, as the 50mheight for the interval set 20m ×20m sample area, Total 44. Monitor the all of the charator of the physical and chemical of soil . use the formula H=∑n i=1 and SPSS to analysis all of the samples, calculate all of the n sample＇ s composite index, and classify all of the samples. The composite index is the comprehensive of the physical and chemical of the soil, so the value of the composite index bigger the condition of the soil better. Analysis result show： all of the sample composite index is 3.36 - 6.18, use the SPSS to classify all of the samples, and all of samples can calssify to four types, in all of the types Ⅰ types have 7, and the mean value is 5.89; Ⅱtypes have 24, and the mean value is 4.92; Ⅲ types have 11, and the mean value is 4.32; Ⅳ types have 1, and the mean value is 3.36;the total station of the soil show the Ⅰ , Ⅱ, the composite index show the biggest for the 0.6 of the densities, and the composite index show the minimum for the 1 of the densities.
Physical and chemical of the soilNormalizationComposite indexClassifyDensities
NETL
NSTL
万方数据
维普
