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应用生态学报 ›› 1999, Vol. 10 ›› Issue (5): 529-533.

• 研究论文 • 上一篇    下一篇

四川大头茶气候生态类型的多元分析及SDA判别分析

柯文山1, 钟章成2   

  1. 1. 湖北大学生命科学院, 武汉430062;
    2. 西南师范大学生物系, 重庆400715
  • 收稿日期:1997-10-14 修回日期:1997-11-27 出版日期:1999-09-25 发布日期:1999-09-25
  • 通讯作者: 柯文山,男,32岁,硕士学位,讲师,从事植物种群生态学及应用生态学研究,已发表论文5篇.E-mail:Kews586@263.cn E-mail:Kews586@263.cn
  • 基金资助:

    国家自然科学基金重点资助项目(39330050).

Multivariate and SDA analyses of Gordonia acuminata climatic ecotype

Ke Wenshan1, Zhong Zhangcheng2   

  1. 1. Life Science College, Hubei University, Wuhan 430062;
    2. Department of Life Science, Southwest Teachers University, Chongqing 400715
  • Received:1997-10-14 Revised:1997-11-27 Online:1999-09-25 Published:1999-09-25

摘要: 应用数量分类(CA)和排序(PCA、COA)方法分析了四川大头茶7个地理种群23个性状特征,并用判别分析(SDA)检验分类排序的正确性。结果表明,四川大头茶不同地理种群可划为3个气候生态类型:云南文山型即Ⅰ型、广西型即Ⅱ型、四川型即Ⅲ型;同时据其判别分析之判别轴图可知,没有位点被错划。通过比较地理气候因子对各类型的贡献率,得知光照对3类生态类型的形成分化起主导作用.

关键词: 四川大头茶, 多元分析, 气候生态类型, 地理种群, 冠层PAR截获与利用, 耗水特性, 越冬期, 测墒补灌, 小麦

Abstract: Quantitative classification (CA) and ordination (PCA,COA) methods were used to analyze 23 traits of seven Gordonia acuminata geographic populations, and discriminate function analysis (SDA) was used to test the results of classification and ordination. Seven geographic populations were classified into three climatic ecological types: type Ⅰ Yunnan Wenshan, typeⅡ Guangxi, and type Ⅲ Shichuan. According to the discriminate axis figures of SDA, no position points were incorrectly classified. Through comparing the contribution rate of the geo climatic factors to each ecological type, sunlight had the principal effect on the formation and differentiation of the three climatic ecotypes.

Key words: Gordonia acuminata, Multivariate analysis, Climatic ecotype, Geographic population, water consumption characteristic, overwintering stage, supplemental irrigation by measuring soil moisture, winter wheat, PAR interception and utilization