黄顶菊在中国的潜在适生区

Potential distribution areas of alien invasive plant Flaveria bidentis (Asteraceae) in China

菊科黄菊属植物黄顶菊近年出现在我国华北地区天津市和河北省的衡水、廊坊等地,其入侵范围有不断扩大的趋势.黄顶菊是一种入侵性极高的一年生杂草,对农牧业生态系统有极大的破坏性.为指导黄顶菊的防除和制定相关的控制政策,本研究根据黄顶菊在其原产地南美洲及扩散入侵地的分布资料,采用CLIMEX生态位模型对其在中国的潜在适生分布区域进行预测.结果表明,黄顶菊在中国的潜在适生区域集中分布于东南部的广东、广西、云南、海南、福建、台湾、江西、湖南、贵州、四川、重庆、湖北、安徽、江苏、上海15个省(市、自治区),其中高风险区域包括广东、广西、台湾、海南、福建、云南、四川、贵州、重庆和西藏局部地区.

Flaveria bidentis （Asteraceae） , a potential exotic invasive weed to agro-ecosystem and rangeland ecosystem, has recently invaded Tianjin City and Hebei Province （Hengshui and Lang-fang） in North China, and is spreading further. Based on its current geographical distribution in the world, the potential distribution areas of this weed in China were predicted by using CLIMEX soft-ware, aimed to assess the potential risks of this invasive weed. Following provinces in China could be the potential areas being invaded by F. bidentis, i. e. , Guangdong, Guangxi, Yunnan, Hainan, Fujian, Taiwan, Jiangxi, Hunan, Guizhou, Sichuan, Chongqing, Hubei, Anhui, Jiangsu, and Shanghai, among which, Guangdong, Guangxi, Taiwan, Hainan, Fujian, Yunnan, Sichuan, Guizhou, Chongqing, and part of Xizang would be at high risk.