我国城市建成区绿地率与人均公园绿地面积失调特征及差异

摘要

近年来，我国城市绿地水平普遍提高，但建成区绿地率与人均公园绿地面积失调较为严重，且城市间存在明显的差异性。研究以我国地级及以上城市为研究单元，采用1990～2011年各市建成区绿地率与人均公园绿地面积的截面数据，通过模型测度各城市建成区绿地率与人均公园绿地面积的离差系数，以揭示我国城市建成区绿地率与人均公园绿地面积失调的特征及差异性，结果表明：全国整体失调较为严重，并且失调等级呈增强的态势；四大地区失调性由东北向东、西部再向中部逐步增强；巨型城市协调性最好，其他几类城市总体发展比较均衡，但其内部差异性也比较明显，规模小的城市高度失调以上等级所占比例大；从城市类别上看，行政级别越低的城市，失调等级越高。%Green space ratio has improved dramaticaly at large in recent years. However, green space ratio and per capita has been severely imbalanced. The paper studies the data of al the prefecture level cities from 1990 to 2011, measures the coefifcient of dispersion of green space ratio and per capita in diferent cities, and the result shows that the imbalance at national level is severe with increased diference from northeast to east, west and to central region; mega cities have the least imbalance degree; smal cities are highly imbalanced. Least administrative level cities have the highest imbalance degree.