自然资源学报 ›› 1994, Vol. 9 ›› Issue (4): 341-349.doi: 10.11849/zrzyxb.1994.04.006

• 论文 • 上一篇    下一篇

南方红壤地区水稻土的肥力评价

翟玉顺1, 章熙谷2   

  1. 1. 中国科学院南京土壤研究所;
    2. 南京农业大学
  • 出版日期:1994-12-25 发布日期:1994-12-25

FERTILITY EVALUATION OF THE PADDY SOIL IN THE RED SOIL REGION OF SOUTH CHINA

Zhai Yushun1, Zhang Xigu2   

  1. 1. Nanjing Institute of Soil Science, Chinese Academy of Sciences;
    2. Nanjing Agricultural University
  • Online:1994-12-25 Published:1994-12-25

摘要: 本文在系统分析土壤肥力结构的基础上,运用模糊隶属函数及主成分分析的原理和方法生成了反映水稻土肥力状况的综合肥力指数(IFI),以此对江西省临川县43个水稻土种(属)的肥力状况进行了分析与评价,划分了水稻土的肥力等级,并考察了不同肥力级别水稻土各肥力指标的状况。

关键词: 水稻土, 综合肥力指数, 南方红壤地区, 模糊隶属函数, 主成分分析

Abstract: On the Basis of the systematic analysis of soil fertility structure, the integrated fertility index(IFI)that reflects the fertility of paddy soil is proposed by using the fuzzy subordinate function and the principal component analysis theories and methods in this paper. In accordance with the values of IFI, the fertility levels of 43 species (genus)of paddy soil in Linchuan County, Jiangxi Province, are analysed and evaluated, the fertility grades of paddy soil are determincd, and the fertility index of each paddy soil of different fertility grades is examined.

Key words: paddy soil, integrated fertility index (IFI), red soil region of south China, fuzzy subordinate function, principal component analysis.