1、《北京市绿化条例》已由北京市第十三届人民代表大会常务委员会第十四次会议于2009年11月20日通过,自什么时候起实施?答:自2010年3月1日施行。2、本市绿化工作的理念和原则是什么?答:应当贯彻科学发展观,体现人文北京、科技北京、绿色北京的理念,坚持以人为本、生态优先、城乡统筹和政府组织、全民参与、共建共享 1, “Beijing Greening Regulations” passed by the fourteenth meeting of the Standing Committee of the 13th People’s Congress of Beijing on November 20, 2009 and when will it be implemented? A: As of March 1, 2010 Execution. 2, What is the concept and principle of afforestation in this Municipality? A: We should implement the scientific concept of development, embody the concepts of humanities Beijing, science and technology Beijing and green Beijing. We should adhere to the principle of people-oriented, ecological priority, urban and rural planning and government organizations, participation by all, shared