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生态学杂志 ›› 1998, Vol. ›› Issue (3): 11-15,26.

• 研究报告 • 上一篇    下一篇

因子分析法研究黄淮海平原自然村自然生态社会系统评价因子

刘金龙   

  1. 中国林业科学院林业研究所, 北京100091
  • 收稿日期:1996-05-06 出版日期:1998-06-10

Selection of Evaluation Factors for Natural Villages by the Factory Analysis Method in the Huang Huai Hai Area

Liu Jinlong   

  1. Chinese Academy of Forestry, Beijing 100091
  • Received:1996-05-06 Online:1998-06-10

关键词: 瓜蚜, 寄主植物, 生命表, 种群参数

Abstract: This paper tried to use factory analysis method in study of vectory analysis and selection of evalution factors for natural village ecosystem in forestry, agricultural, living hansbandry and natural, economic and social indexes in the Huang Huai Hai area. Five vectors from high to low according to their percentage of eigenvalue over the total were as follows: Natural-economic vector, social vector, forestry vector, living hansbandry vector, and agriculture vector. The accumulation of total percentage was up to 80.0%. The main factors were also obtained according to their loading matrix in each vector.

Key words: Aphis gossypii, host plant, life table, population parameter.