单 位：
江西省南昌市第一中等专业学校;江西省科学院能源研究所;福建农林大学资源与环境学院;江西省科学院鄱阳湖研究中心
关键词：
喀西茄;牛茄子;曼陀罗;入侵植物;潜在地理分布;最大熵模型
摘 要：
【目的】探究喀西茄(Solanum khasianum)、牛茄子(Solanum capsicoides)和曼陀罗(Datura stramonium)3种茄科入侵植物在我国的分布格局及其主要气候环境影响因子,为3种茄科入侵植物的监测、预警和防控提供科学依据。【方法】获取3种茄科入侵植物在我国的已知分布点,结合生物环境空间数据,利用最大熵模型(MaxEnt)预测其在我国的3 km×3 km分辨率适生性空间分布概率,并分析3种茄科入侵植物地理分布的空间重叠特征及影响其空间分布的主要气候环境因子。【结果】喀西茄、牛茄子和曼陀罗3种茄科入侵植物在我国的入侵分布区广泛,分别占国土面积的20.09%、25.69%和62.49%,但地理分布存在明显空间分异和局部空间重叠。其中,曼陀罗除青藏高原外各地区均有其适生区,而喀西茄和牛茄子主要分布于亚热带地区;喀西茄的适生区主要集中在西南云贵高原,是其入侵的重灾区,尤其是云南、广西、贵州及其周边的省份;牛茄子分布范围较喀西茄广,主要分布在热带和亚热带地区,适生性自南向北逐渐减弱。【结论】我国西南地区是喀西茄和牛茄子入侵的集中适生区和重灾区。3种茄科植物在云贵高原和横断山区均有气候适宜重叠区,是入侵茄科植物的未来重点防疫区。
译 名：
Potential geographic distribution and climate suitability of three invasive species of Solanaceae in China
作 者：
ZHANG Jie;ZHANG Yang;LI Min;AO Zi-Qiang;YANG Chun-yan;Poyang Lake Research Center,Jiangxi Academy of Sciences;College of Resources and Environment,Fujian Agriculture and Forestry University;Nanchang First Specialized Secondary School;Energy Research Institute,Jiangxi Academy of Sciences;
单 位：
ZHANG Jie%ZHANG Yang%LI Min%AO Zi-Qiang%YANG Chun-yan%Poyang Lake Research Center,Jiangxi Academy of Sciences%College of Resources and Environment,Fujian Agriculture and Forestry University%Nanchang First Specialized Secondary School%Energy Research Institute,Jiangxi Academy of Sciences
关键词：
Solanum khasianum;;Solanum capsicoides;;Datura stramonium;;invasive plant;;potential geographical distribution;;maximum entropy model
摘 要：
【Objective】The distribution and climate influence factors of three invasive plants of solanaceae(Solanum khasianum,S. capsicoides and Datura stramonium)in China were studied to provide reference for monitoring,prediction and control of them.【Method】Based on occurrence records of the reported sites of the three species,maximum entropy model(MaxEnt)was applied to predict and analyze the potential geographical distribution of suitable habitats under 3 km×3 km resolution ratio,and the overlapping areas features of the three species and the main climate influence factors for the spatial distribution were analyzed.【Result】The results showed that the distribution areas of S. khasianum,S. capsicoides and D. stramonium were very wide in China,accounting for 20.09%,25.69% and 62.49% of the national territory respectively,but the spatial distributions of these weeds were obviously heterogeneous and partial spaces were overlapping. D.stramonium had its own suitable habitats in all areas except Qinghai-Tibet Plateau. S. khasianum and S. capsicoides were mainly distributed in subtropical regions. S. khasianum were mainly suitable living in Yunnan-Guizhou Plateau,especially Yunnan,Guangxi,Guizhou and surrounding provinces. The distribution range of S. capsicoides was wider than that of S.khasianum,mainly distributed in tropical and subtropical regions,and the degree of climate suitability gradually weakened from south to north.【Conclusion】The south-western China is the major suitable habitats and stricken areas for S. khasianum and S. capsicoides. There are overlapping suitable habitats in Yunnan-Guizhou Plateau and Hengduan Mountainous Region for the three species,therefore these areas should be the key control areas for invasive Solanaceae.
