中国大陆城市蔓延状态监测研究

Monitoring Urban Sprawl in China's Mainland

及时准确地监测城市蔓延状态，是认识和理解中国大陆城市蔓延过程和机理并评估其生态环境影响的重要基础。本文综合利用DNSP／OLS稳定夜间灯光数据和统计数据，快速监测并分析了中国大陆主要城市2008年的蔓延状态与特征。结果表明：①中国大陆2008年共有150个主要城市处于蔓延状态，约占中国大陆主要城市总数（不含无数据的区域）的45．73％；②中国大陆2008年处于明显蔓延和一般蔓延状态的城市，主要是中国西部的、非农人口在50万以下、GDP在500亿以下、产业格局为“二三一”的城市。

Timely and accurately monitoring urban sprawl is the base to understand the urban sprawl process and mechanism and assess its impacts on ecological system and environment in China's Mainland. Using DMSP/OLS stable nighttime lights and statistical data, this paper diagnosed and analyzed the urban sprawl status in China's Mainland in 2008. The conclusions are as fol- lows： 1） In 2008, there are 150 main cities in China are in the status of urban sprawl, approximately 45.73% of all the main dries （not including those cities without data）; 2） In 2008, the cities with the status of obvious urban sprawl and moderate urban sprawl are mainly concentrated in the western part of China, having the non-agriculture population below 0. 5 million, GDP below 50 billion, and the industrial pattern of ＂2-3-1＂.