Characteristics and performance of urban-rural integration networks in cross-border areas of metropolitan region from the perspective of flow-form coupling: A case study of the Changsha-Zhuzhou-Xiangtan green heart area
AI Lin-shu, QIAO Peng-yue, LIANG Chen, ZHANG Rui-xia, LIU Yu-jing
JOURNAL OF NATURAL RESOURCES . 2026, (8): 2421 -2436 .  DOI: 10.31497/zrzyxb.20260808