河南主要外来有害植物的初步研究

河南外来有害植物共计 2 1种 ,大部分原产欧洲和美洲。本文研究了河南外来有害植物的区系组成、传入途径、影响因素、主要危害、防治以及综合利用等方面。结果表明外来有害植物主要通过人为引种传播。河南特殊的地理位置、植物自身传播能力、自身生态适应性 ,造成了河南外来有害植物的分布现状。这些植物对河南的农林业生产造成了较大的危害 ,但也可以被充分利用 ,将其变害为宝。

Study on the foreing harmful plant in Henan

The foreign harmful plant in Henan province consists of 23 species through investigation and referring to the related literatures. most of which come of Europe and America, this paper studies the foreign harmful plant from composing of flora and characteristic?the way of invasion?the factor of influence?harm?prevention and cure to using and so on. Discovering that they can be spreaded by mostly introduced species of people. whose distributing in Henan is the integrated result of geography?spreading ability of self ?adaptability of selfecology and transmiting of people, These plants have brought about heavier harm to farming and forest of Henan, at the same time, we can make the best use of the foreign harmful plants and change their harm into usefulness.