摘要
以我国东部湖区及云贵湖区主要湖泊2005～2008年的监测数据和国际公认的湖泊富营养化叶绿素a含量分级为基础,通过频率统计方法,对叶绿素a、总氮(TN)、总磷(TP)、透明度(SD)和高锰酸盐指数(CODMn)进行了统计分析,并根据反退化原则,计算了两湖区湖泊富营养化控制指标的建议值.结果表明,东部湖区湖泊富营养化控制标准的建议值为TN:1.65mg/L,TP:0.100mg/L,SD:0.45m,CODMn:4.50mg/L;云贵湖区为TN:1.00 mg/L,TP:0.045 mg/L,SD:1.10m,CODMn:4.00mg/L.云贵高原湖区氮磷营养盐控制指标值绝对值低,相应控制标准比东部平原湖区严,主要原因是东部平原湖区受人类活动影响强烈,目前的水环境总体质量劣于云贵湖区.
Based on the monitoring data of main lakes in China＇s eastern and Yunnan-Guizhou region from 2005 to 2008, as well as the internationally recognized chlorophyll-a （Chla） concentration categories for lake eutrophication, statistical analysis was conducted on Chlorophyll a, total nitrogen （TN）, total phosphorus （TP）, transparency （SD） and permanganate index （CODMn） through method of frequency statistics. The recommended values for lake eutrophication control indicators in the two lake regions were calculated in accordance with the principle of anti-degradation. Shana results that the recommended values for lake eutrophication control indicators in China＇s eastern lake region should be TN at 1.65 mg/L,TP at 0.100mg/L,SD at 0.45m and CODM, at 4.50mg/L, while that in Yunnan-Guizhou lake region should be TN at 1.00mg/L,TP at 0.045 mg/L,SD at 1.10m and CODM, at 4.00mg/L. The absolute value of indicators for nitrogen and phosphorus nutrient control in Yunnan-Guizhou Plateau lake region is lower than that in eastern lake region. Thus, the control standard is comparatively higher in Yunnan-Guizhou Plateau lake region. The main reason is that the general water environmental quality in lakes of China＇s eastern plain region is currently worse than that in Yunnan-Guizhou Plateau region, because of intense interference by human activities.
出处
《中国环境科学》
EI
CAS
CSCD
北大核心
2011年第12期2046-2051,共6页
China Environmental Science
基金
水体污染控制与治理科技重大专项课题(2008ZX07209-008)
关键词
东部湖区
云贵湖区
富营养化
标准
频率统计
eastern lake region
lake region of Yunnan-Guizhou
eutrophication, standard, frequency statistics
