德国最近实施的“绿色屋顶”研究,就是想给“灰姑娘”戴顶风彩绰约的“绿帽子”。这项由马德里大学和柏林大学一批科学家共同承担的研究计划是,在建筑物顶上种植花草利用普通的草为屋顶做衣,实验已在柏林和墨西哥城取得成果,专家已证实绿色屋顶完全可以战胜城市污染。农业社会科学教授、绿色屋顶计划负责人胡利安·布里兹介绍说,第一步是寻找和选定几种十分耐旱,不需浇水的草种,如矮种早熟禾、白景天或苔藓等。这些草 The “green roof” research recently implemented in Germany is to give “Cinderella” a “green hat” with a windy color. The research project undertaken by a group of scientists from the University of Madrid and the University of Berlin is to plant flowers on top of buildings and use ordinary grass to dress for the roof. Experiments have been carried out in Berlin and Mexico City. Experts have confirmed that the green roof is completely It can overcome urban pollution. Professor Julian Britz, professor of agricultural social sciences and head of the Green Roof Program, said that the first step is to find and select several grass species that are very drought-tolerant and do not need watering, such as dwarf bluegrass, white sedum or moss. Wait. These grasses