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对华东3省1市(安徽、江苏、浙江和上海)的加拿大一枝黄花群落进行定量的生态学调查,将各环境生态因子量化,进行主成分分析(PCA)和典范对应分析(CCA),结果表明,入侵生境的植物群落均以加拿大一枝黄花为优势种,与加拿大一枝黄花频繁伴生的植物中藤本植物为常见的一类,它们能利用加拿大一枝黄花植株作为攀爬物,获取阳光。在23个生态因子中,土壤类型、湿润度、荫蔽度对加拿大一枝黄花分布的影响最大,加拿大一枝黄花趋向于入侵沙壤、湿润和开阔的生境。因此,推测江河湖泊的岸堤、沼泽、沿海滩涂、高速公路、铁路边、人工裸地极易受到加拿大一枝黄花的入侵,应该加强对这些生境的监管。
Quantitative ecological investigation of Solidago canadensis community in three provinces and one province of East China (Anhui, Jiangsu, Zhejiang and Shanghai) was conducted to quantify various environmental ecological factors and to conduct principal component analysis (PCA) and canonical correspondence analysis (CCA). Results The results showed that invaded habitats are dominated by Solidago canadensis, which is a common species in plants associated with Solidago canadensis. They can use Solidago canadensis as a climbing material for sunlight. Among the 23 ecological factors, soil type, moisture content and shade degree had the greatest impact on the Solidago canadensis distribution. Solidago canadensis tended to invade sandy soil, moist and open habitats. Therefore, it is speculated that the embankments, swamps, coastal beaches, highways, railways and artificial bare land of rivers and lakes are highly susceptible to the invasion of Solidago canadensis and the regulation of these habitats should be strengthened.