我国城镇化率对建成区绿化覆盖率的影响研究

发布时间：2018-03-26 14:31

  本文选题：建成区绿化覆盖率　切入点：城镇化率　出处：《苏州科技大学》2017年硕士论文

【摘要】：城镇化的本质在于社会整体生活水平的提升和区域的可持续发展。城市绿地建设作为城镇化建设的重要环节,其发展与居民生活、生态环境、基础设施、空间集约等可持续发展内容息息相关,且收到了城镇化从人口、土地、经济等多方面带来的深刻影响。改革开放以来,伴随城镇化不断推进以及社会经济高速发展,我国城市绿地建设水平也大幅提升,因而,探明城镇化水平对城市绿地建设水平的影响规律,对于把握城镇化发展关键阶段,推动我国城市绿地建设快速发展具有一定参考意义。本文选取建成区绿化覆盖率、城镇化率分别表征城市绿地建设水平和城镇化水平,分别采用1986—2014年全国时间序列数据、2005—2014年省际面板数据从20余年来城镇化率与建成区绿化覆盖率时空演变关系入手,提出"倒U型"影响关系假说、并全面验证假说,力求全面揭示我国城镇化率对建成区绿化覆盖率的影响关系。研究主要结论有:(1)提出"两率"的"倒U型"关系假说,即城镇化率对建成区绿化覆盖率的影响力度呈现出先增强后逐渐减弱的整体趋势。并将假说分为四个阶段:影响力度微弱阶段,影响力度增强阶段,影响力度继续增强并达到峰值,影响力度开始减弱并趋于平缓。(2)针对"倒U型"假说,分别进行统计数据检验与计量分析检验。由统计数据检验发现,时间序列数据与省际面板数据所得出的散点图与拟合线均验证了我国城镇化率对建成区绿化覆盖率提升的影响力度存在明显的"倒U型"的线性关系。由计量检验发现:从全国层面而言,我国大陆"两率"关系正处于假说的第二阶段,且城镇化率每提升1%,拉动建成区绿化覆盖率增加1.0682%,且当城镇化率达到65%左右时,城镇化率的影响力度将达到峰值,随后出现减弱趋势。从区域层面而言,中部、西部影响力较强,东北影响力度一般,东部影响力较弱。(3)基于"倒U型"假说,提出四点发展对策建议:遵循演进规律,致力提升城镇化质量水平;完善相关政策、确保城市绿地健康有序的发展;巧借关系预测,把握城市绿地发展黄金阶段,分别包含了充分利用城镇化对城市绿地建设的影响力度,以及积极探索快速城镇化下内涵式城市绿地发展模式两个层面;立足区域现状,探究差异化城市绿地发展道路,指在顺应非均衡化的"两率"发展现状的前提下,实行具有区域差别化的城镇化引导。
[Abstract]:The essence of urbanization lies in the improvement of the overall living standard of the society and the sustainable development of the region. As an important link in the construction of urbanization, the urban green land construction, its development and residents' life, ecological environment, infrastructure, The content of sustainable development such as spatial intensive is closely related, and has received the profound influence of urbanization from many aspects of population, land, economy, etc. Since the reform and opening up, along with the continuous development of urbanization and the rapid development of social economy, The level of urban green space construction in our country has also been greatly improved. Therefore, to find out the law of the influence of urbanization level on the level of urban green space construction is important to grasp the key stage of urbanization development. It is of certain reference significance to promote the rapid development of urban green space construction in our country. In this paper, the green coverage rate and the urbanization rate of the constructed areas are selected to characterize the level of urban green space construction and the level of urbanization, respectively. Based on the national time series data of 1986-2014 and the inter-provincial panel data from 2005 to 2014, this paper puts forward the hypothesis of "inverted U-shaped" influence relation and verifies the hypothesis from the temporal and spatial evolution of urbanization rate and green coverage rate of the established areas in the past 20 years. The main conclusions of the study are: (1) the hypothesis of "inverted U type" relationship between "two rates" is put forward. That is, the effect of urbanization rate on the green coverage rate of the constructed areas shows the overall trend of first increasing and then gradually weakening, and the hypothesis is divided into four stages: the stage of weak influence and the stage of increasing influence. The influence intensity continues to increase and reach the peak, and the influence intensity begins to weaken and tends to be flat. (2) aiming at the "inverted U-shaped" hypothesis, the statistical data test and the econometric analysis test are carried out, respectively. The scattered plot and fitting line obtained from time series data and provincial panel data verify that there is an obvious linear relationship between urbanization rate and the improvement of green coverage in established areas. It was found that at the national level, The relationship between "two rates" in the mainland of China is in the second stage of hypothesis, and every increase in urbanization rate increases by 1.0682%, and when the urbanization rate reaches about 65%, the influence of urbanization rate will reach a peak. Then there is a weakening trend. From the regional level, the central and western regions have a strong influence, the northeast influence is general, and the eastern influence is weak. (3) based on the "inverted U" hypothesis, four development countermeasures are put forward: following the evolution law. To improve the quality of urbanization; to improve the relevant policies to ensure the healthy and orderly development of urban green space; to grasp the golden stage of urban green space development; It includes two levels: making full use of the influence of urbanization on the construction of urban green space, and actively exploring the development mode of urban green space in the context of rapid urbanization; based on the current situation of the region, the paper explores the road of development of differentiated urban green space. It refers to the urbanization guidance with regional differentiation under the premise of adapting to the current development situation of "two rates" of non-equalization.
【学位授予单位】：苏州科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：S731
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本文编号：1668252