随着人们生活水平的进一步提高以及物质生活的不断丰富,人们对生活环境的要求也越来越高。对于首都北京来说,良好的城市环境既是一个大国形象的名片,又是生活在这个城市的居民的普遍要求。“十二五”时期,是首都实施“人文北京、科技北京、绿色北京”发展战略的 With the further improvement of people’s living standards and the continuous enrichment of material life, people’s living environment requirements are also getting higher and higher. For the capital city of Beijing, a good urban environment is not only a business card of a big country image, but also a common requirement of residents living in this city. “Twelve-Five ” period, the capital of the implementation of “humanities Beijing, Beijing science and technology, Beijing green ” development strategy