摘要
One of the tremendous impacts of the urbanization on the ecological enviroument in urbau areas is the fatal destruction or the natural hydrological cycle. However less attention has up to now been paid to this kind of destroy, because it is covered by the problem of increasingly serleus water shortage. In terms of changing the human interactions with the environmeat, are nature-oriented mode for rainwater management in urban areas are proposed All the destructions of the astural hydrological cycle caused by urbanization should ecoloically be compensated in time so that the groundwater can be recharged and the natural cycle be recovered gradually. Such modes can be divided into three classes:catchment, storage and drainage. Based on an analysis of the natural condttions about the local climate, topography and hydrogeology, an appropriated mode can be selected to meet the needs of an old urban area or a newly built one.
One of the tremendous impacts of the urbanization on the ecological enviroument in urbau areas is the fatal destruction or the natural hydrological cycle. However less attention has up to now been paid to this kind of destroy, because it is covered by the problem of increasingly serleus water shortage. In terms of changing the human interactions with the environmeat, are nature-oriented mode for rainwater management in urban areas are proposed All the destructions of the astural hydrological cycle caused by urbanization should ecoloically be compensated in time so that the groundwater can be recharged and the natural cycle be recovered gradually. Such modes can be divided into three classes:catchment, storage and drainage. Based on an analysis of the natural condttions about the local climate, topography and hydrogeology, an appropriated mode can be selected to meet the needs of an old urban area or a newly built one.
