机译:珠江三角洲城市群的生态足迹分析
South;
China;
Institute;
of;
Environmental;
Sciences,;
Ministry;
of;
Environmental;
Protection;
of;
the;
People’s;
Republic;
of;
China;
Urban; agglomeration; in; Pearl; River; Delta; Ecological; footprint; Footprint; benefit; Ecological; safety; China;