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贵州省不同的人类干扰程度对入侵植物的影响
Effects of different levels of human disturbance on invasive plants in Guizhou Province
【摘要】 贵州省地形地貌复杂多样,物种生境异质性高且生态系统脆弱更易受到外来物种入侵威胁。本研究通过土地利用类型和人类干扰程度及变化探讨入侵植物生境现状。结果表明:2017—2019年,物种生境中人类干扰程度呈明显下降的区域面积最小,而该区域入侵植物分布点数最多;贵州省入侵植物生境类型中,城镇工业用地和重度干扰区域分布的外来入侵植物分布点最多,人类干扰加剧了入侵植物的分布。在外来入侵植物的有效防治方面,还应统筹考虑其地理分布格局、入侵生境和人为干扰等因素,做到针对外来入侵植物入侵相对集中、入侵危害相对突出的地区,开展更为有效的针对性防控,这将大大提升外来入侵植物的防控效率。
【Abstract】 Guizhou Province has complex topography,high species habitat heterogeneity and fragile ecosystems,which are more vulnerable to alien species invasion. In this study,the status of invasive plant habitats was explored through land use type and human disturbance degree and change. The results were as follows:the area where the degree of human disturbance decreased significantly was the smallest from2017 to 2019,while where had the highest site number of invasive species;among the habitat types of invasive species,urban industrial land and severely disturbed areas had the most sites of invasive species,the human disturbance facilitated the distribution of invasive species. In terms of effective prevention and control of invasive alien plants,we should also consider the geographical distribution pattern,invasive habitats and human disturbance. The prevention and control efficiency of invasive plants can be greatly improved if more effective prevention and control measures are performed in areas where invasive plants are relatively concentrated and the harm of invasive plants is relatively prominent.
【Key words】 invasion alien plants; distribution; control; habitat degradation; human disturbance;
- 【文献出处】 植物检疫 ,Plant Quarantine , 编辑部邮箱 ,2023年02期
- 【分类号】Q948
- 【下载频次】73