山西外来入侵植物的研究

经过调查和对大量文献资料的整理和分析，确定山西的外来入侵植物有41种，隶属19科35属，其中水生植物1种，陆生植物40种．美洲的植物种类最多，达26种，占总种数的63％；亚热带分布的最多，有18个属，大多为适宜于温凉气候条件的杂草种类;作为蔬菜、花卉和药用植物等有意引进的有32种，随人工引种带入或自然扩散无意引进的有9种;分布广、危害严重的植物有10种，它们的危害性主要体现在3个方面，即破坏生态系统的结构和功能、加快物种多样性的丧失和严重危害农林业生产．针对山西外来入侵植物的现状提出了一些相应的防治对策．

Study on the Exotic Invasive Plants in Shanxi Province

41 species of exotic invasive plants belonging 19 families and 35 genera were identified in Shanxi Province through investigations and referring to the related references.There were one species of hydrophyte and 40 species of terricolous among them.In which,26 species,accounting for 63% of the total number from America were the most.18 genus in semitropical area,mostly fitting cool climate,were the most.32 species were fetched in intentionally as vegetable,flower and plant of drug.9 species were fetched in accidentally by manpower or natural pervasion.10 species were harmful and widespread.There were three aspects of harmness: destroying structure and function of ecosystem,making species diversity decrease,and being harmful to agriculture and forestry production severity.Some corresponding preventable strategies were provided.