贵阳阿哈水库空心莲子草入侵现状及其对植物多样性的影响  

The Invasion Status and Effect on Plant Diversity of Alternanthera philoxeroides in Aha Reservoir in Guizhou

作　　者：寇冬梅 张锦华 刘秀锋 李筑江 王萍 孙绍文 

机构地区：[1]贵州省农业资源环境保护站,贵州贵阳550001 [2]贵州省草业研究所,贵州贵阳550006

出　　处：《贵州农业科学》2012年第11期129-132,共4页Guizhou Agricultural Sciences

基　　金：贵州省农业攻关项目"紫茎泽兰阻截带防控关键技术研究"[黔科合NY字(2011)3049]

摘　　要：为弄清空心莲子草的入侵现状及其对植物多样性的影响,以贵阳市阿哈水库小流域为调查区域,进行样方调查以及多样性分析。结果表明:蔷薇科和禾本科占该区域草本全部科的34.2%,表明温带性质植物在该地区草本植物区系和植物组成中占主导地位;空心莲子草入侵后阿哈水库流域植物的组成仍然具有多样性和复杂性,并没有受到较大干扰。结论:空心莲子草的入侵在阿哈水库流域表现为中度干扰,并且其入侵在一定程度上增加了该区域的植物多样性。In order to evaluate the invasion status of A.philoxeroides in Guizhou and its influence on plant diversity,an quadrat investigation and a diversity analysis were conducted in the small watershed of Aha Reservoir.The results showed that Rosaceae and Gramineae accounted for 34.2% of the total families in the region.This indicated that temperate plants were dominated in the area;the plant components were still diverse and complex enough,which are not strongly interfered by the invasion of A.philoxeroides.Conclusion：the invasion of A.philoxeroides in Aha Reservoir watershed manifests itself as moderate interference,and it increased the plant diversity to some extent.

关 键 词：空心莲子草 入侵 植物多样性 阿哈水库 贵阳 

分 类 号：S459[农业科学—植物保护]