Based on a systematic description and theoretic analysis on the reform design project,combined with the practice of the reform of he rural credit cooperatives in some district in the West Regions,and applying the time series GPCA method,a positivist analysis on the reform of the rural credit cooperatives has been made in.

The all-around principle component analysis method based on the data table indexed by time can provide a efficient scientific quantitative method for dynamic evaluation of regional economic development level,is a multi-index comprehensive appraisal method.

This paper intends to give the methods of principal components analysis for the instant planar data and global principal components analysis for the multidimensional dynamic data system in the environmental evaluation,especially focuses on the synthesis and simplification of the sequential solid datasheet,then gets the satisfied result in the examination.

Based on designing evaluation index system,this paper puts global principal components analysis to the related evaluation data of six provinces in central China area from 1997 to 2006,uses of cluster analysis to classify,and contrastively analyzes mutative law on land intensive utilization in central China area.