Study on the delimitation of urban expansion boundary in hilly and mountainous areas：A case study of Jiangjin district in Chongqing

SONG Yong-tong, ZHANG An-ming, GUO Huan-huan, SUN Fen

HUBEI AGRICULTURAL SCIENCES . 2019, (5): 29 -35 . DOI: 10.14088/j.cnki.issn0439-8114.2019.05.007