Global Geology 2011, 14(1) 54-58 DOI:     ISSN: 1673-9736 CN: 22-1371/P

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principal component analysis
black soil
soil degradation
NIU Cencen
WEN Xiuyu
GUO Yuan
ZHAGN Penglei
ZHU Rongyue and HE Xianhui
Article by NIU Cencen
Article by WANG Qing
Article by WEN Xiuyu
Article by GUO Yuan
Article by ZHAGN Penglei
Article by ZHU Rongyue and HE Xianhui

Application of principal component analysis to evaluation of black soil degradation in Jilin

NIU Cencen, WANG Qing, WEN Xiuyu, GUO Yuan, ZHAGN Penglei, ZHU Rongyue and HE Xianhui

College of Construction Engineering,Jilin University,Changchun 130026,China


Principal Component Analysis ( PCA) can simplify the structure of database by replacing multidimensional parameters with relatively less comprehensive variables in order to ensure the minimum lost in initial data. In this paper,eighteen black soil samples from different sites were tested and thirteen distinctive indexes were chosen to evaluate the degeneration of black soil. By using principal component analysis,variables of thirteen dimensions can be diminished to six unrelated principal indexes. Analysis shows that the soluble salt content,Fulvic acids ( FA) and aggregation degree have a high weighing coefficient,indicating these three indexes are the major parts for the evaluation of black soil degradation. It also provides a new path to the degenerated black soil treatment in Northeast China.

Keywords principal component analysis   black soil   soil degradation  
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