入侵生物飞机草在中国的适生区预测

摘要

Eupatorium odoratum L. is an invasive weed. In the research, 6 climate conditions were selected for the evaluation of the optimal living areas of the weed. Zhanjiang was used as a base among 18 climate distributions. Climate information and agricultural climate were also included in the analysis for the optimal living areas judgement of E. odoratum in China. Results showed that Hainan, parts of Guangdong, Guangxi, Yunnan, Taiwan and Xizang were the optimal living areas of the weed and parts of Fujian and Guizhou were the optimal living areas. The climate map for optimal living areas was obtained, which provided the knowledge for the prevention and control of the weed.%以飞机草生存的6个气候参数为基础,选择湛江作为评估的基点,结合中国划分的18个不同气候大区的代表城市的气候特征,通过计算欧氏距离系数,得出各气候大区与基点间的气候相似程度,采用层次分析法,结合气候资料与农业气候相似等级判定标准,分析飞机草在中国适生区情况,并结合气候大区划分飞机草在中国的适生区及非适生区.结果表明,海南、广东、广西、云南、台湾、西藏的部分地区为飞机草的适生区,而福建、贵州部分地区为飞机草的次适生区,北方大部分地区为非适生区.