水生生物学报Issue(2)：342-350,9.DOI:10.7541/2014.49
南淝河叶绿素a时空分布特征及环境因子影响分析
THE SPATIAL AND TEMPORAL DISTRIBUTION OF CHLOROPHYLL-A AND ITS CORRELATION WITH ENVIRONMENTAL FACTORS IN THE NANFEIHE RIVER
摘要
Abstract
We collected water samples at eight sites in the Nanfeihe River from August 2009 to April 2012 every month in order to analyze the temporal and spatial distribution of chlorophyll-a in the river and its correlation with environmental fac-tors. Results showed that the average concentration of Chl.a in the Nanfeihe River was 83.46 μg/L, which indicated that the water is highly eutrophic. The concentration of Chl.a significantly increased along with the increase in the concentration of TP, COD, TSS, pH and the water temperature;while decrease along with the increase in SD, 4NH+-N/TP, the water depth, rainfall and the wind speed. We applied step-wise regression analysis to the data and found that the key environmental factors affecting the concentration of chlorophyll-a were the water temperature, the wind speed, rainfall, and the concentration of TP and 4NH+-N. By comparing the major impact factors that affect the concentration of Chl.a in the Nanfeihe River and other eutro-phic water bodies, we concluded that the water temperature was the most important factor affecting the concentration of Chl.a, In addition, N/P ratio, nutrients, rainfall, wind speed and biological factors were also critical factors.关键词
浮游植物/叶绿素/富营养化/南淝河/城市河道/水华Key words
Phytoplankton/Chlorophyll-a/Eutrophication/Nanfeihe River/Urban river/Water bloom分类
生物科学引用本文复制引用
李柱,郭伟杰,成水平,柴培宏,梁威,吴振斌..南淝河叶绿素a时空分布特征及环境因子影响分析[J].水生生物学报,2014,(2):342-350,9.基金项目
国家水体污染控制与治理科技重大专项项目(2008ZX07316-004、2011ZX07303-002)资助 （2008ZX07316-004、2011ZX07303-002）
