@article{Tianyu LIU_1771, author = {LIU Tianyu, CHEN Xiaolin, LI Qiang, CHEN Jin}, title = {The Centripetal Expansion Index and Its Application in Urban Spatial Expansion in Zhengzhou Metropolitan Area}, publisher = {Journal of Geo-information Science}, year = {2022}, journal = {Journal of Geo-information Science}, volume = {24}, number = {9}, eid = {1771}, pages = {1771-1784}, keywords = {;urban expansion;centripetal expansion index;artificial impervious layer;Zhengzhou metropolitan area;multiple logistic regression model}, doi = https://www.dqxxkx.cn/EN/10.12082/dqxxkx.2022.220039 }