羊昌河流域水生植物调查

Hydrophyte investigation along the Yangchang River

通过野外调查和采集植物标本,调查羊昌河流域范围内的水生植物现状。结果表明:羊昌河流域植物种类较丰富,共有水生植物22科,46种。其中蕨类植物有2科,2种;被子植物有22科,44种。水深对植物的种类组成与分布产生重要影响,不同的水深区域生长着相异的植物类群。水体富营养化指示植物喜旱莲子草、满江红的大量分布,说明了羊昌河流域水体在人为活动干扰下已经受到污染。

In order to research the status of hydrophyte along the Yangchang River, field plant investigation and herborization were carried out. The results showed that there were 22 families and 46 hydrophyte species including 2 species of 2 families of Pteridophyta and 44 species of 22 families of Angiosperm. Water level was one of the most important facts that affected the hydrophyte species and distribution, and different areas with different water levels covered with different hydrophytes. As eutrophication indicative plant Alternanthera philoxeroides and AzoUa imbricate distributed largely along the river, the Yangchang River was polluted by human activities.