Abstract: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 CODMn 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 CODMn 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.
许秋瑾, 朱延忠, 郑丙辉, 赵伟. 我国东部与云贵湖区富营养化控制标准对比研究[J]. 中国环境科学, 2011, 31(12): 2046-2051.
XU Qiu-Jin, ZHU Yan-Zhong, ZHENG Bing-Hui, ZHAO Wei. Comparative study on lake eutrophication control standards in Eastern and Yunnan-Guizhou lake region of China.. CHINA ENVIRONMENTAL SCIENCECE, 2011, 31(12): 2046-2051.