入侵植物紫茎泽兰物候学特征及防控对策  

Phenological characteristics of invasive plant crofton weed and measures for controlling its invasion

作　　者：高贤明[1] 赵玉杰[1,2] 唐和春 

机构地区：[1]中国科学院植物研究所植被与环境变化国家重点实验室,北京100093 [2]中国科学院研究生院,北京100049 [3]仁和国家级森林病虫害中心测报点,四川攀枝花617061

出　　处：《中国森林病虫》2010年第1期26-29,共4页Forest Pest and Disease

基　　金：国家973项目(2009CB112000);中国科学院知识创新工程重大项目(KSCX1-SW-13-03-06)

摘　　要：在了解入侵种紫茎泽兰个体发育规律等生活史特征的基础上对比其与当地植物种类在物候学上的差异,发现紫茎泽兰的入侵主要是由于个体发育过程中与大多数本土植物存在明显的时间差。提出在防控其入侵蔓延的实践中,除了保护生态系统的健全与完整以外,应该优先选择与之物候学特征相近的本土植物进行替代治理与预防,实现有效控制紫茎泽兰的入侵危害。This characteristics of ontogenesis and phenology of Crofton weed （Eupatorium adenopho- rum） and the local plants were compared and it was found that the main cause of the invasion is the temporal differences between the weed and the local plants, i. e., during the period when the local plants shed their leaves or died off in the dry season, the weed kept growing;thus the seedlings of Crofton weed took the temporal differences to develop continually, and when the rain season came, the seedlings have established and occupied the spacial superiority. Such superiority could not only help the seedlings grow high enough to dominate the herbaceous layer and leave little room for the local herba- ceous species ,but also take up the superiority of fruticose layer after several years. Based on the pheno- logical characteristics of Crofton weed, it was suggested that the local plant species which have the same or similar phenolocal characteristics be selected to replace the invasive weed for prevention of invasion so as to keep the infestation under control.

关 键 词：外来种入侵 紫茎泽兰 物候学特征 时间差 本土植物 

分 类 号：S765[农业科学—森林保护学]