在京津冀一体化发展、北京南部新城建设、首都第二机场临空经济区发展等一系列新的发展趋势下,南部地区的经济体量、人口规模和建设用地数量即将面临爆发式增长,生态环境保护已成为当务之急。本研究范围主要包括长安街以南的西城区、东城区、丰台区、大兴区(含北京经济技术开 With a series of new development trends such as the integrated development of Beijing, Tianjin and Hebei, the construction of a new town in the south of Beijing, and the development of the Capital Airport Second Economic Zone, the volume of the economy, the population and the amount of construction land in the southern region are about to explode, Ecological protection has become a top priority. The scope of the study mainly includes Xicheng District, Dongcheng District, Fengtai District, Daxing District (including Beijing Economic and Technological Development Zone