Abstract: Based on field survey, the plant diversity and vegetation of Nansha District, Guangzhou City was studied. There are a total of 603 native vascular plant species belonging to 388 genera, 128 families in Nansha district, and the dominating vegetation are wetland vegetation, aquatic vegetation, beach vegetation and hilly vegetation. The diversity and geographical area of the wild plant in Nansha district were analyzed, and the results indicated that few families are the dominant components of flora, and tropical elements predominate in the flora but there is a degree influence of temperate elements. Finally, suggestions for the protection of plant diversity were proposed.

Key words: Nansha district, plant diversity, vegetation, flora

摘要： 通过实地调查，对广州南沙区的植物多样性及植被进行了研究。据统计，该区野生维管束植物共有603种，隶属于128科，388属；植被主要为湿生植被、水生植被、滩涂植被及丘陵植被等。对南沙区野生植物多样性和区系地理的分析结果表明：该地区物种集中于少数科内，科属的优势现象明显。在植物区系上，该区具有较强的热带性，但温带成分也有一定程度的入侵。最后对该区植物多样性的保护提出建议。

关键词: 南沙, 植物多样性, 植被, 区系