论文部分内容阅读
外来生物入侵已成为全球性问题,严重影响生态环境和农林业生产。大量引进的外来观赏植物被用于公园、住宅区、路网周边及乡村绿化之中,这些植物中有些种类或品种具有极强的适应性,很容易摆脱人们的管理约束而成为逸生植物。本次调查是以北京地区具有逸生性外来观赏植物作为调查对象,通过对北京地区部分山区、平原及城区实地调查,共发现逸生性外来观赏植物12种,隶属于7科,10属,对其逸生状况和生境作了记录和分析。
Invasion of alien species has become a global problem, seriously affecting the ecological environment and the production of agriculture and forestry. A large number of imported exotic ornamental plants are used in parks, residential areas, road networks and rural greening. Some of these plants are extremely adaptable and can easily escape the regulatory constraints of people and become artificial plants. In this survey, 12 exotic species of alien ornamental plants were found in the mountain areas, plains and urban areas in Beijing with 12 species of alien ornamental plants as survey objects in Beijing. Status and habitats were recorded and analyzed.