打印

作者

Chao Yang;Wenhao Guo;Chenchen Zhang;Aihong Cui;Xuecao Li;Tianhong Zhao;Huizeng Liu;Tiezhu Shi;Gang Xu;Xu Fang;Xu Liu;Kangyong Zhang;Peng Gong;Qingquan Li;Guofeng Wu

来源

HABITAT INTERNATIONAL,Vol.120,P.102502

语言

英文

关键字

作者单位

MNR Key Laboratory for Geo-Environmental Monitoring of Great Bay Area & Guangdong Key Laboratory of Urban Informatics & Shenzhen Key Laboratory of Spatial Smart Sensing and Services, Shenzhen University, Shenzhen, 518060, China;School of Architecture and Urban Planning, Shenzhen University, Shenzhen, 518060, China;Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, 611756, China;Department of Geography, Hong Kong Baptist University, Kowloon Tong, 999077, Hong Kong, China;College of Land Science and Technology, China Agricultural University, Beijing, 100083, China;College of Civil and Transportation Engineering, Shenzhen University, Shenzhen, 518060, China;School of Resource and Environmental Sciences, Wuhan University, Wuhan, 430079, China;School of Geographical & Earth Sciences, University of Glasgow, Scotland, G128QQ, United Kingdom;Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Beijing, 100084, China;MNR Key Laboratory for Geo-Environmental Monitoring of Great Bay Area & Guangdong Key Laboratory of Urban Informatics & Shenzhen Key Laboratory of Spatial Smart Sensing and Services, Shenzhen University, Shenzhen, 518060, China;School of Architecture and Urban Planning, Shenzhen University, Shenzhen, 518060, China;Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, 611756, China;Department of Geography, Hong Kong Baptist University, Kowloon Tong, 999077, Hong Kong, China;College of Land Science and Technology, China Agricultural University, Beijing, 100083, China;College of Civil and Transportation Engineering, Shenzhen University, Shenzhen, 518060, China;School of Resource and Environmental Sciences, Wuhan University, Wuhan, 430079, China;School of Geographical & Earth Sciences, University of Glasgow, Scotland, G128QQ, United Kingdom;Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Beijing, 100084, China;School of Management and Economics, Beijing Institute of Technology, Beijing, China;Institute of Geography, Fujian Normal University, Fuzhou, Fujian, China;School of Geography, Nanjing Normal University, Nanjing, Jiangsu, China;School of Public Administration and Policy, Renmin University of China, Beijing, China;The Hirayama Ikuo Volunteer Center, Waseda University, Japan;Graduate School of Asia-Pacific Studies, Waseda University, Japan;Department of Sociology, Faculty of Liberal Arts, Teikyo University, Japan;Department of Agricultural Land Surveying, Cadastre and Photogrammetry, Faculty of Environmental Engineering and Land Surveying, University of Agriculture in Krakow, Poland;School of Public Administration, Guangxi University, Nanning, 530004, China;Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing, 100101, China;School of Public Affairs, Chongqing University, Chongqing, 400044, China;School of Public Affairs, Zhejiang University, Hangzhou, 310058, China;School of Architecture and Design, Zhejiang University of Technology, Hangzhou, Zhejiang, 310023, China;School of Design, Shanghai Jiao Tong University, Shanghai, 200240, China;Urban Geographies/Centre for Urban Studies, Universiteit van Amsterdam, Nieuwe Achtergracht 166, 1018 WV, Amsterdam, Netherlands;Department of Geography and Environmental Science, University of Southampton, United Kingdom;The Bartlett School of Planning, University College London, United Kingdom

摘要

China's rapid urbanization has resulted in a dramatic loss in cultivated land that threatens future food security. Local and central government have successively launched a series of Low-slope Hilly Regions Comprehensive Development and Utilization (LHRCDU) pilot projects (i.e., the rudiment of China's hillside urbanization) since 2006 to balance the contradiction between urban growth and flat farmland protection. However, the process, quantity and effect of hillside urbanization over China remain unknown. In this study, we conducted an investigation of hillside urbanization (mainly refers to the urban land expansion on hillsides) over China from 2007 to 2017 by combining earth observation satellite data with spatial analysis techniques. Our results revealed that 12.32% of China's urban expansion area came from hillside urbanization, in which Guizhou, Yunnan, Shanxi and Fujian had large areas of hillside urbanization area (accounting for 25.63% of the total hillside urbanization area in China), while Guizhou, Tibet, Yunnan, Chongqing, Hong Kong and Shanxi had higher hillside urbanization rates (>30%). China's hillside urbanization rate also showed a steady upward trend, and 20% of hillside urbanization was high environmental cost (HEC), occupying 1535.94 km2 of hillside forest. Our findings provide timely and transparent monitoring on China's hillside urbanization, and indicate that hillside urbanization can relieve the pressure of urban development on flat farmland but needs to be regulated for ecological safety.