青岛市重点水源地水库营养状态与营养源的特征研究

对7座重点水源地水库进行营养状态评价,有5座水库处于中营养状态,2座水库处于轻度富营养状态。对营养源的调查及研究表明,水库的外来营养物质主要来源于农村及农业的非点源污染,非点源污染产生的总氮、总磷入库量占总氮、总磷入库总量的85.1%~100%和59.7%~100%,因此,防治农村和农业的非点源污染,防止营养物质随地表径流进入水库是防止水库富营养化的根本。

Characteristics of Nutrition State and Nutrition Sources in Major Water Source Reservoirs in Qingdao

The states of 7 major water source reservoirs were evaluated, the results showed that 5 of 7 reservoirs were middle nutrition, 2 of 7 reservoirs were light nutrition. Investigating and analyzing the pollution sources and nutrition sources, the results shewed that non- point pollution in countryside and agriculture were the m~in pollution reasons, the TN and TP from non - point pollution entry the reservoirs were 85.1% - 100% and 59.7% - 100%. So, preventing and curing the countryside and agriculture non - point pollution, preventing the nutrition substance following the surface runoff into the reservoirs were the main measurement of preventing entrophication.