濒危物种北京水毛茛水环境因子特征研究

Study on the Hydro environmental Factors of the Endangered Species Batrachium pekinense

摘要:

摘要：北京水毛茛为北京特有的多年生水生植物，因其种群濒危、我国特有性和生境特殊，已被列为北京一级重点保护野生植物。研究表明：北京水毛茛模式产地种群已近消失，延庆松山国家级自然保护区内有少量分布，为该种的最大种群。为了探明濒危物种北京水毛茛的生境特征，以便进行及时、科学、合理的物种保护，本研究针对保护区内的水系进行水环境因子特征调查、分析。结果表明:除兰角沟水体富营养化较大外，北沟与塘子沟水体条件均能满足北京水毛茛的正常生长。可以进一步结合底质、季节、群落结构特征分析，选择适合水域，尽快开展该物种的近地保护繁育试验。

Abstract:

Abstract:Batrachium pekinense,which is an endangered aquatic perennial plant and endemic in Beijing in China, has been treated as first level protected wild plant in Beijing because of its rare population and endemic and special habitat.Though the populations in holotype area are almost disappeared,several populations are found in Songshan National Nature Reserve,which is the biggest distribution area now.In this study,the water environment of Beijing Songshan National Nature Reserve was investigated for the further protection of Batrachium pekinense.Our result showed that the water of all of streams could support the growth of Batrachium pekinense except that of Lanjiao Stream. Measures of prompt and efficient protection should be taken based on our results and other analysis including soil sediment,season and community characters.