基于灰色关联的寒区湿地春夏季浮游植物数量与环境因子关系

根据夏季(2005年7月)和春季(2006年5月)对寒区湿地--安邦河湿地浮游植物数量及其环境因子的调查,为寒区湿地管理及以后研究提供依据和基础资料.共采到浮游植物8门92种,其中春季37种,夏季82种,数量变化呈现夏季高于春季,上游高于下游,边缘区高于核心区.环境因子除了透明度(diaphaneity,D)和pH值外,水温(water temperature,WT)、可溶性无机氮(dissolved inorganic nitrogen,DIN)、磷酸盐(PO 4-P,P)及溶解氧(dissolved oxygen,DO)都呈现明显时空规律性变化.差异度结果显示2季节P的差异度最大.灰色关联分析结果表明,P的关联度在2季节均是最大.由此表明对安邦河湿地浮游植物数量影响最大的是P,因此,控制外源性的P输入对于维持安邦河湿地生态系统的健康是非常重要的.

Relationship between phytoplankton quantity and its environmental factors in wetland of cold regions in spring and summer based on the grey association analysis

The purpose of this paper was to provide basic information for management and a foundation for the future study in ecosystem dynamics and eutrophication on cold regions wetland based on studying the correlation of phytoplankton quantity and its environmental factors.An investigation on the phytoplankton quantity and environmental factors on Anbanghe wetland,a type of cold region swamp in northeast of China,was conducted during July(summer) 2005 and May(spring) 2006.There were 92 common species occurred in b...