珲春市农田生态循环的定量分析

Analysis in Fixed Quantity of Hunchun Farmland's Ecocycle

选择８个特征指标，采用主成分分析和系统聚类分析的方法，对珲春市农田生态循环进行定量分析，将珲春市的农田生产分为良性循环和非良性循环两大类，并探讨了提高循环功能质量的途径。

hosen 8 principal indexes,by means of principal component analysis and systematic type analysis,study the ecocycle of Hunchun farmland and divide it into two types──good and bad ecocycle,give the methods to improve the quality of its ecocycle.