济南市大明湖生态环境需水量

Eco-Environmental Water Requirement of Daminghu Lake in Jinan

采用湖泊生态环境需水量功能计算法,对济南市的城市湖泊大明湖,从湖泊蒸发需水量、沿湖绿地需水量、生物栖息地需水量、湖泊净化需水量、湖泊渗漏需水量、景观与娱乐需水量和公园内设施用水7个方面,初步计算了在2003年气候条件下的大明湖生态环境需水量,计算中考虑了生态优先原则、兼容性原则和水质为重点原则,计算结果为:湖泊蒸发需水量为1.74×105m3;沿湖绿地需水量为2.025×105m3;生物栖息地需水量为8.37×105m3;湖泊净化需水量为1.729×106m3;景观与娱乐需水量为9.3×105m3;公园内设施用水为8×104m3;大明湖生态环境需水量总和为1.788×106m3。最后对研究结论进行了分析,并对改善大明湖的水环境提出建议。

The eco-environmental water requirement of Daminghu Lake was calculated in 2003 with the functional method.In the calculation,seven aspects were considered,such as the water for evaporation,greenbelt,habitat,pollutant cleaning,leakage,landscape and the park's establishment.The calculation follows the principles of the priority of protecting environment,compatibility and the importance of water quality.The calculation result showed that the water for evaporation,greenbelt,habitat,pollutant cleaning,landscape and the park's establishment were 1.74×105m3,2.025×105m3,1.729×106m3,9.3×105m3 and 8×104m3,and the total eco-environmental water requirement was 1.788×106m3.After analyzing the results,some suggestions about improving the lake's water environment were presented.