外来入侵植物粉花月见草生态学特征  

Bioecology Characteristics of the Invasive Alien Plant-Oenothera Rosea

作　　者：韦美玉[1] 王玉林[2] 刘丽萍[1] 

机构地区：[1]黔南民族师范学院生命科学系,贵州都匀558000 [2]黔南民族师范学院化学与化工系,贵州都匀558000

出　　处：《黔南民族师范学院学报》2012年第6期89-92,116,共5页Journal of Qiannan Normal University for Nationalities

摘　　要：对外来入侵植物粉花月见草(Oenothera rosea)生物生态学特征进行研究。结果表明:单株鲜重、株高、单株冠面积、种群生物量、种群盖度、单位叶面积鲜重、叶片数、分枝数、根重、主根长、根周长、根体积、根冠比等指标随入侵时间增加而先升后降;叶绿素含量、根系活力随入侵时间增加而先升后降;刈草翻耕后以上指标有明显增长。丙二醛随入侵时间增加而逐渐增加。该植物随入侵时间有可塑性反应,是先锋物种,演替年限5年。刈草翻耕促进该植物入侵。We studied the bioecology characteristics of the invasive alien plant - Oenothera Resea. The results showed that some indexes such as individual fresh weight, plant height, individual crown area, stock biomass, patterns of coverage, leaf fresh weight per unit area, content of leaves and content of branching, root weight, main shoot length, root perimeter,root volume root -shoot ratio and etc. increased earlier and decreased later with the time of the invasion. The chlorophyll content and root activities rose at the beginning then declined gradually along with the time of the inva- sion. The index above increased obviously by tillage mow. Malondialdehyde content increased gradually with the time of the invasion ,with which there is plasticity reaction in this plant that is pioneer species and its succession fixed number of year is five. Tillage mow can promote its invasion.

关 键 词：粉花月见草 入侵性 形态 生理指标 种群 

分 类 号：S512[农业科学—作物学]