农业环境科学学报2011，Vol.30Issue(8)：1630-1637,8.
贵州高原红枫湖水库叶绿素a浓度的时空分布及其与环境因子关系
Temporal and Spatial Distribution of Chlorophyll-a Concentration and Its Relationship with Environmental Factors in Hongfeng Reservior, Guizhou Plateau, China
摘要
Abstract
Hongfeng Reservoir is the largest artificial Karst lake in Cuizhou Plateau and therefore plays an important role in water supply for Guiyang City. The distributions and dynamics of chlorophyll-a were analyzed based on the monthly monitoring data of Hongfeng Reservior in 2010, as well as the correlation between chlorophyll-a and other environmental factors mentioned in the paper. The results indicated that the concentration of chlorophyll-a varied obviously in time and space. In time, the values followed the order of summer>autumn>winter>spring, with the concentration being the highest in July because large quantities of phosphorus entered the reservoir with rainfall, increasing the number of algae. In space, the concentration of chlorophyll-a gradually decreased due to the influence to the dam, and basically was higher in the south part of the reservoir than in the north part. This was probably in connection with the spatial distribution of phosphorus pollutant sources and algae's phosphorus-limited growth style. Thus the south part received more phosphorus contributed to the larger input from industrial point source pollution and urban sewage than the upstream north part. The correlation between chlorophyll-a and other environment factors was complex. The correlation between chlorophyll-a and transparency was negative in spring, summer and winter, and that between chlorophyll-a and water temperature was positive in summer. The correlation between chlorophyll-a and total phosphorus was positive, and that between chlorophyll-a and total nitrogen was complex. The concentration of chlorophyll-a indicated that Hongfeng Reservior had reached an eutrophic state.关键词
红枫湖水库/叶绿素a/环境因子/相关性Key words
Hongfenghu Reservior/ chlorophyll-a/ environmental factors/ correlation分类
资源环境引用本文复制引用
邓河霞,夏品华,林陶,陈文生,张邦喜,杨小红,李存雄..贵州高原红枫湖水库叶绿素a浓度的时空分布及其与环境因子关系[J].农业环境科学学报,2011,30(8):1630-1637,8.基金项目
贵州省教育厅重点项目(200910040) （200910040）
贵州省社发攻关项目(SY20103176):贵阳市社发攻关项目(2009304):贵州省基金项目(20082239) （SY20103176）
