基于主成分分析法的耕地整理潜力分析评价——以临川区为例

Analysis and Evaluation of Cultivated Land Consolidation Potential Based on Principal Component Analysis——A Case Study in Linchuan

根据江西省抚州市临川区第二次调查更新数据和底图,结合土地整治规划和统计年鉴资料,建立了7个耕地潜力评价指标,运用SPSS软件进行主成分分析,计算特征值和累计贡献率,确定主成分个数;然后对主成分得分采用聚类分析方法计算,得到临川区耕地整理潜力等级,为临川区耕地整理提供科学依据。

According to the second survey update data and base maps in Linchuan Region,Fuzhou City of Jiangxi Province,combined with land remediation planning and statistical yearbook data,7 potential evaluation indicators of cultivated land were established.Using SPSS software to conduct principal component analysis,calculate the eigenvalues and the cumulative contribution rate,determine the number of principal components.Then the principal component score was calculated using cluster analysis method to obtain Linchuan arable land readjustment potential level,which will provide a scientific basis for the Linchuan farmland consolidation.