内蒙古盐沼湿地浮游动物群落与环境的关系

Relationship between the Zooplankton Community and Environmental Factors in the Salina Wetland of Inner Mongolia

连续多年对红碱淖尔湖和桃力庙-阿拉善湾海子浮游动物群落与环境因子的关系进行研究,浮游动物调查方法依据《内陆水域渔业自然资源调查手册》,数据处理采用软件SAS 9.0。结果表明,离子系数([K+]+[Na+])/([Ca2+]+[Mg2+])、总硬度、钙镁比值([Ca2+]/[Mg2+])是影响浮游动物群落生态分布的主要水环境指标,其3个指标都受到[Ca2+]、[Mg2+]的影响,水环境因子[Ca2+]、[Mg2+]是浮游动物群落生态分布的限制因子。

Distribution and composition of zooplankton community is sensitive to water environment. The relationship between the zooplankton community and the environment factors have been rarely reported in the salina wetland ecosystem in Inner Mongolia. Researches in Taolimiao-alasanwan haizi and the hongjiannao lake were conducted for many years. Zooplankton in- vestigation was based on 〈〈the inland waters fisheries resources investigation handbook 〉〉. The data were analysed by SAS9.0 software. Results showed that （[K＋]＋ [Na＋]）/（[Ca2＋]＋ [Mg2＋]）, （[CaE＋]/[Mg2＋]）, total hardness were the main water environmental indicators affecting ecological distribution of zooplankton community. [Ca2＋], [Mg1＋] are the limiting factors af- fectin ecological distribution of zooplankton community.