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本文以二个大田试验多年的实测资料为依据,采用“主成分分析法”和“聚类分析法”,对几种水土保持指标进行了分析与评价。分析与评价证明:我们所采用的5种水土保持指标是适宜的;应用的上述两种分析方法是可行的;并可提高水土保持研究分析的精度。
Based on the measured data of two field trials for many years, this paper analyzes and evaluates several soil and water conservation indicators using “principal component analysis” and “cluster analysis.” The analysis and evaluation proved that the five kinds of soil and water conservation indexes we adopted are suitable; the above two kinds of analysis methods applied are feasible; and the precision of soil and water conservation research and analysis can be improved.