1976-2016年青藏高原地区通达性空间格局演变

高兴川,曹小曙,李涛,吕敏娟

Evolution of accessibility spatial pattern of the Qinghai-Tibet Plateau in 1976-2016

GAO Xingchuan,CAO Xiaoshu,LI Tao,LV Minjuan

图6 1976-2016年青藏高原地区中心城市交通圈空间格局演变

Fig. 6 Traffic circle structure evolution of anchor cities within land transportation network in the Qinghai-Tibet Plateau in 1976-2016