| 土壤分类中的综合数值方法 |
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| 引用本文： | 江光富,蔡霖生.土壤分类中的综合数值方法[J].四川农业大学学报,1990,8(3):249-254. |
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| 作者姓名： | 江光富 蔡霖生 |
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| 作者单位： | 德阳市水土保持办公室，四川农业大学林学系 |
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| 摘 要： | 本文通过0—1化和主成分分析构成的“二次转换法”对多态数据进行数量化,再采用主成分分析缩维、平方和增量法聚类、逐步判别程序检验结果,结合orford(1976)的经验方法定类,较为理想地解决了三类问题,将64个供试剖面划分为3类,其类间差异极显著,类内差异不显著。
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| 关 键 词： | 土壤分类(49BA) 主成分分析(30K) 聚类分析(30R 30T) |
INTEGRATED NUMERICAL METHODS OF SOIL CLASSIFICATION |
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| Jiang guangfu et al.INTEGRATED NUMERICAL METHODS OF SOIL CLASSIFICATION[J].Journal of Sichuan Agricultural University,1990,8(3):249-254. |
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| Authors: | Jiang guangfu |
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| Abstract: | “Two-time Transformation” was used to transform multistate data into numerical ones, principal component analysis to compress attributespace, incremental sum of square method to cluster soil profiles into hierarchy, and succesive discreminant program to examine results,in order to deal with three problems which exist in numerical classicification of soils. Three clusters, among which the differences were very significant, were gained for the 64 studied profiles. In addition, Oford's experential method of defining class was improved. |
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| Keywords: | SOIL CLASSIFICATION PRINCIPAL COMPONENTS ANALYSIS CLUSTER ANALYSIS |
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