Therefore, the environmental protection in Beijing includes ecological conservation and construction in the suburban plain and mountainous area and the vicinity of the Capital, as well as the prevention and treatment of the urban pollution.

• 因此，北京市生态环境保护和建设工作不仅包括市区环境污染防治的内容，还涉及郊区平原和山区乃至首都周边区域、流域的生态保护与建设。