我国建成区绿化覆盖率与城镇化率的关系研究

发布时间：2019-05-28 18:05

【摘要】：城市绿地建设是城镇化建设的关键环节,且受到城镇化进程的重要影响,揭示城镇化水平与城市绿地建设水平的内在关系具有重要意义。文章选择建成区绿化覆盖率、人口城镇化率分别表征城市绿地建设水平和城镇化水平,从理论假说、实证检验两方面探讨我国建成区绿化覆盖率与城镇化率的关系。研究表明:(1)建成区绿化覆盖率与城镇化率间存在倒"U"型曲线关系,即城镇化率提升对建成区绿化覆盖率增长的拉动力度呈现先逐渐增强到峰值后逐渐下降的基本规律。(2)现阶段我国建成区绿化覆盖率与城镇化率关系正处于倒"U"型曲线的左半部分,拉动力度随着城镇化率的提升而不断增强,预测当城镇化率达65%左右,其对建成区绿化覆盖率的影响力度将达到峰值,随后拉动力出现减弱趋势。(3)由于各地区城镇化水平存在非均衡性,城镇化率对建成区绿化覆盖率提升的拉动力度也存在显著差别,中部、西部拉动力度较强,东部拉动力度较弱。
[Abstract]:The construction of urban green space is the key link of urbanization construction, and is affected by the process of urbanization. It is of great significance to reveal the internal relationship between urbanization level and urban green space construction level. This paper selects the green coverage rate of the built-up area and the urbanization rate of the population to represent the level of urban green space construction and urbanization respectively, and probes into the relationship between the greening coverage rate and the urbanization rate of the built-up area in China from two aspects of theoretical hypothesis and empirical test. The results show that: (1) there is an inverted "U" curve relationship between the greening coverage rate and the urbanization rate of the built-up area. That is to say, the promotion of urbanization rate on the growth of green coverage in built-up areas shows the basic law of gradually increasing to the peak at first and then decreasing gradually. (2) at present, the relationship between greening coverage and urbanization rate of built-up areas in China is in the middle of the relationship between greening coverage and urbanization rate. Reverse the left half of the "U" curve, The pulling strength increases with the improvement of urbanization rate. It is predicted that when the urbanization rate reaches about 65%, its impact on the greening coverage rate of the built-up area will reach the peak. After that, the pulling power tends to weaken. (3) due to the imbalance of urbanization level in each region, the urbanization rate also has significant differences in the intensity of improving the greening coverage rate of the built-up area, and the pulling strength is stronger in the middle and western regions. The pull force in the east is weak.
【作者单位】：苏州科技大学建筑与城市规划学院;
【基金】：国家自然科学基金项目“多尺度视阈下绿地对城市居住空间的影响效能研究——以南京为例”(51408390) 苏州科技大学“风景园林学”江苏省“十二五”重点(培育)学科苏州科技大学2015年度研究生科研创新计划项目“江苏省建成区绿地率与人均公园绿地面积协调发展研究”(SKCX15_015)
【分类号】：TU985

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