| 郑进烜,吴 霞,王 勇,吴富勤,杨忠兴,郑静楠.新建玉磨铁路沿线外来入侵植物种类及分布格局研究[J].林业调查规划,2022,(3):78-84 |
| 新建玉磨铁路沿线外来入侵植物种类及分布格局研究 |
| Species Composition and Distributional Patterns of Invasive Alien Plants along the New Yuxi-Mohan Railway |
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| DOI： |
| 中文关键词: 外来入侵植物 物种组成 分布格局 玉磨铁路 |
| 英文关键词: invasive alien plants species composition distribution pattern Yuxi-Mohan Railway |
| 基金项目:云南省第二次重点保护野生植物资源项目（000036Z00015）. |
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| 摘要点击次数: 12 |
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| 中文摘要: |
| 通过在新建玉磨铁路沿线设置51个点位样线，开展外来入侵植物调查研究。结果表明：调查到外来入侵植物25科67属87种，其中出现频度最高的5个种依次为牛膝菊、三叶鬼针草、藿香蓟、一年蓬和土荆芥；外来入侵植物的主要原产地为美洲；67.81%的种类具有明显入侵性，其中12种为恶性入侵种，16种为严重入侵种，31种为局部入侵种，20种为一般入侵种，8种为有待观察种；在地理分布格局和扩散趋势方面，呈现以热性成分高的区域入侵植物种类为主的特点，同时物种种类分布与海拔整体呈现出负相关性。 |
| 英文摘要: |
| The investigation and research on invasive alien plants were carried out by setting up 51 site samples along the newly constructed Yuxi-Mohan Railway. The results showed that 87 species belonging to 67 genera and 25 families of invasive alien plants were investigated, of which the five species with the highest frequency were Galinsoga parviflora, Bidens pilosa, Ageratum conyzoides, Erigeron annuus and Dysphania ambrosioides; the main origin of invasive alien plants was America; 67.81% of the species were obviously invasive,including 12 malignant invasive species, 16 severely invasive species, 31 local invasive species, 20 general invasive species and 8 species to be observed; in terms of geographic distribution pattern and spreading trend, there were many types of invasive plants in areas with high thermal components, and the distribution of species was negatively correlated with altitude. |
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