长江流域城市生态环境问题与跨世纪持续发展战略

综合分析评价了长江流域城市的生态环境态势与问题，城市水环境依然恶化，特别是城市内河道，湖泊水质多污染严重。城市大气污染仍是加重趋向，一些特大城市汽车尾气污染上升，城市酸雨依然严重。城市生态问题沉重，绿地不足，热岛加重，地面沉降，水土流失等。沉重的生态环境赤字已深刻影响到城市经济社会的发展。面对二十一世纪，论证了长江流域城市发展战略，走城市可持续发展之路是唯一战略选择，而建设现代化的山水园林生态城市

URBAN ECO ENVIRONMENTAL PROBLEMS OF THE YANGTZE RIVER BASIN AND TRANSCENTURIAL STRATEGIES FOR THE SUSTAINABLE DEVELOPMENT OF METROPOLISES

The paper synthetically analyzes and evaluates the urban ecology environment situation and issues in Yangtze River Basin.It points out urban water environment is still deteriorating especially urban inland river course,and lake water pollution gets very serious,urban air pollution worsens,especially in some big cites car tail gas pollution ascends,urban acid rain still remains serious,greenlands are insufficient,heat island effect,earth subsidence,and water soil erosion are getting worse.In a word urban ecological issues are very critical;these serious eco environmental deficits have deeply influenced urban economic society development. To meet 21st century challenge,the article demonstrates the strategy of urban development in Yangtze River Basin.The sustainable development approach is the unique strategical choice of urban development,and building modernized waters hills gardens ecological city is the most efficient way.On the other hand the paper discusses the basic framework of waters hills gardens ecological city construction.It extensively interprets the ways and means of the ecological city construction with the contents of hills waters and gardens.The article finally points out that every city construction should have its salient characteristic,planning designing and the construction must contain its own distinguishing style and charm.