四川农业大学学报 ›› 1996, Vol. 14 ›› Issue (03): 396-400,448.doi: 10.16036/j.issn.1000-2650.1996.03.018

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四川省枣树产区区划

陈其兵1, 王玉琳2   

  1. 1. 四川农业大学林学园艺学院, 雅安市 625014;
    2. 四川省林业厅造林处, 成都市 610081
  • 收稿日期:1995-10-30 出版日期:1996-09-30 发布日期:2017-03-07

THE OUT-PUT AREA CLASSES OF JUJUBA IN SICHUAN PROVINCE

Chen Qibin1, Wang Yulin2   

  1. 1. College of Forestry and Horeiculture, SichuanAgricultural University/Yaan, Sichuan, China 625014;
    2. The office of Fotestry Sichuan Province/Chendu, China 610081
  • Received:1995-10-30 Online:1996-09-30 Published:2017-03-07

摘要: 选用四川省境内具有代表性的县(市)气候、土壤、枣子产量为依据,用主分量分析法确定影响子产量的主导因子,再用主导因子进行模糊聚类分析,结合生产力指标将四川省枣树区划为四个分区,即中心产区、重点产区、一般产区、生态非适宜区。

关键词: 枣树[49NL, 49EL], 区划, 聚类分析[30R, 30T]

Abstract: According to the climate, soil and the out-put of the specially county in Sichuan province, the factors of importance effecting the out-put were revealed with principal component analysis(PCA) and cluater analysis. The out-put area in Sichuan province were individed into four tpyes-the center area, the principle area, the general area and the little area.

Key words: JUJUBES, CLASSES, CLUSTER ANALYSIS

中图分类号: 

  • S665.1