Habitat Factor Analysis of Alien Invasive Plant Eupatorium odoratum in Guangxi Province of China

• 作者: Guikang JIA
• 来源期刊: Plant Diseases and Pests(植物病虫害研究：英文版)
• 学科: 农学
• 关键词: 外来入侵植物 生境因子 飞机草 因子分析 广西省 中国 大肠杆菌 采样方法
• 年，卷（期）: pdapzwbchyj_2012,（5）
• 页码范围: 30-34
• 页数: 5页
• 分类号: S512

摘要

The invasion pattern of Eupatorium odoratum in invasion area was studied by random plot sampling method. Eighteen habitat factors of E. odoratum sampling plots such as altitude,gradient and exposure were quantified to precisely describe the invasion patterns of E. odoratum in various habitats with different characteristics,and carried out principal component analysis (PCA) . The results showed that the ecological information of 18 habitat factors of E. odoratum could be characterized by four comprehensive factors. The occurrence frequency of E. odoratum had positive correlation with the ecological factors such as exposure,soil moisture,total number of plants,number of shrubs,weeds height,distance form water source,farmland distance,air humidity,arbor height,arbor size,altitude, gradient,number of plant species and weeds coverage,which had negative correlation with air temperature.