摘要：Taking a planning garden in Jinan City as the research object, the urban landscape ecological envi- ronment is divided into two parts: the urban river and lake system and the urban green space system. Aim- ng at the urban river and lake system, the river andlake water surface evaporation calculated by the wa- ter balance formula is 9.5-94.9m3/m2-month, and the permeation volume of the river and lake calcu- lated by Darcy's law is around 0.034-0.053 m3/m2. month. The basic ecological water demand of the river calculated from the minimum monthly average flow method is from 18 to 39.5 m3/m2-month, and the total water demand of the river and lake system is estimated around 30.875- 76.47 m3/m2. month. Jinan area needs artificial wa- ter replenishment in summer (June-August) from 18,000 to 25,000 m3/m2. month. In winter (Novem- ber to February next year), the river is in a freezing period, and no water supply is required. For the green space system, the green rate is 32%. According to the urban green rate rules, the standard green rate (100%-120%) cannot be reached. It is concluded that the green area in the planned park should be in- creased by 19.22km2.
关键词：Urban landscape ecology;water demand planning;river and lake system;green space system
