【摘要】 为了掌握当前贵州高原百花水库水生态系统健康状况,于2017年1—12月开展浮游植物群落调查,基于GIS空间插值进行数据分析和生态学评价,应用浮游植物完整性理论和方法对贵州高原百花水库水生态健康进行评价。结果表明:(1)共鉴定浮游藻类6门32属40种,其中浮游植物丰度岩脚寨(1.24×106cells·L-1)>花桥(7.06×105cells·L-1)>贵铝水厂(4.83×105cells·L-1)>麦西河(4.41×105cells·L-1)>大坝(3.25×105cells·L-1),百花水库优势种为假鱼腥藻(Pseudanabaena sp.)>针杆藻(Synedra sp.)>小环藻(Cyclotella sp.)。(2) 4个参考点评价结果均为健康,16个污染点评价结果为6个健康,4个亚健康,2个一般,2个较差,2个极差。(3)各采样点P-IBI值为花桥18.75、岩脚寨21.75、麦西河17.25、贵铝水厂18、大坝17.25,其中,花桥、岩脚寨和贵铝水厂属于亚健康状态,麦西河和大坝属于一般状态。2017年百花水库生态健康总体处于一个亚健康状态。GIS插值分析能精准预测未知区域,为该地区生态监测提供相关生态学评价依据。更多还原

【Abstract】 To understand the current health status of water ecosystem in the Baihua Reservoir in Guizhou Plateau,a phytoplankton community survey was carried out from January to December in2017. The GIS spatial interpolation method was used for data analysis and ecological evaluation.The phytoplankton integrity method was applied to evaluate water ecological health of Baihua Reservoir. The results showed that:( 1) A total of 40 species belonging to 32 genera within six phyla of phytoplankton were recorded,and the phytoplankton abundance was Yanjiaozhai( YJZ)( 1.24×106 cells·L-1) > Huaqiao( HQ)( 7.06×105 cells·L-1) > Guilǚshuichang( GLSC)( 4.83×105 cells·L-1) > Maixihe( MXH)( 4.41×105 cells·L-1) > Daba( DB)( 3.25×105 cells·L-1).The abundance of top three dominant species were Pseudanabaena sp.>Synedra sp.>Cyclotella sp.( 2) The four reference points were healthy. Among the 16 polluted points,however,six points in health,four points in sub-health,two points in general,six points in poor,and two points in very poor status.( 3) The P-IBI values were 18.75 in HQ,21.75 in YJZ,17.25 in MXH,18 in GLSC and 17.25 in DB,of which the HQ,YJZ and GLSC belonged to the sub-health state,and the MXH and DB were classified as the general state. Overall,the ecological health of Baihua Reservoir was in a sub-health state in 2017. GIS interpolation analysis can accurately predict unknown areas,which provides ecological evaluation basis for ecological monitoring.更多还原