以居民楼和绿地为主体的“小区生态”,正蚕食着老北京的胡同四合院生态,人们可能更多地把这当作一种社会生态,其实,这也是一种环境生态。昔日的北京胡同,大多数尽管与闹市相衔,却成为闹中取静的区域,喧闹的市声在胡同口即被阻断。长长的胡同里,或许会有“磨剪子磨刀”的吃喝以及收旧货先生的打击小鼓的韵律,却在古槐的浓荫中愈加加深了悠长 Residential ecology and green space as the main body of the “Community Ecology” is eroded the old Beijing Hutong courtyard ecology, people may think of it more as a social ecology, in fact, this is also an ecological environment. Former Beijing Hutong, although most of them belonged to downtown, became a quieter area. The bustling city noise was blocked off at the alley. In the long alley, there may be a “scissors sharpening” eat and drink and get rid of the rhythm of the snare drummer, but the deepening of the ancient Huai deepened long