广州城市绿色空间格局及服务功能研究

发布时间：2018-05-20 04:17

  本文选题：城市绿色空间 + 空间格局　； 参考：《广州大学》2017年硕士论文

【摘要】：本研究以广州市城市绿色空间为研究对象,通过3S技术和室外实地观测调查方法,探讨城市绿色空间的格局破碎度、斑块大小和均衡性特征,以及量化绿色空间的降温增湿、滞尘净气等生态服务功能特征;同时结合问卷调查和实地观察的方式度量居民对城市绿色空间的认知、环境改善的支付意愿和完善建议等社会文化服务功能特征。旨在为今后的城市合理规划、政府高效管理、绿色空间科学建设提供科学依据和研究案例。主要研究结论如下:(1)在1979~2014年,广州城市绿色空间面积比例呈阶段性起伏(增大-减小-再增大-再减小)变化特征,空间格局更加破碎化和复杂化,以小型和特小型斑块为主导的破碎化格局。绿色空间格局均衡性等级面积百分比呈“W”型曲线特征,服从四项多项式函数分布规律。2000年以来,绿色空间格局均衡性等级呈两极分化的特征,区域差异明显(如番禺、南沙和中心城区等)。(2)城市绿色空间斑块面积越大,其降温和增湿效果越好(如白云山)。其中,中午(12:00~13:00pm)降温幅度最大,早上(8:00~10:00 am)增湿幅度最大,早上(6:00~10:00am)滞尘净气效果明显。不同绿色空间类型的生态服务功能特征差异明显,降温效果:乔木≈2×草地≈4×灌木,增湿效果:乔木≈2×灌木≈4×草地,草地类型滞尘波动变化较为敏感。(3)大部分居民对广州城市绿化印象较好,且认识到绿色空间对改善环境质量的重要性。由相关性和回归模型分析可知,不同典型绿色公园间居民的认知特征差异明显,且与被调查者的社会经济背景和个人特征等因素有关,如年龄、月收入水平达到显著正相关水平。条件价值法评估居民对绿色空间环境改善的支付意愿仍处于观望阶段,支付意愿与受教育程度、收入水平及接触绿色空间的容易程度等因素有关。不同类型的城市绿色公园有各自的完善建议,具有针对性和建设性的特征。从“格局与功能”两大方面分析广州城市绿色空间特征,研究结论有助于政府了解哪些因素影响居民对绿色空间的态度和实际需求,同时有利于今后城市合理规划、绿色空间科学布局、政府高效管理及城市可持续发展提供一定的科学依据和研究案例。
[Abstract]:Taking the urban green space of Guangzhou as the research object, the pattern fragmentation degree, patch size and equilibrium characteristics of urban green space were discussed by 3s technology and outdoor field survey method, and the cooling and humidification of green space were quantified. At the same time, the characteristics of social and cultural services such as residents' cognition of urban green space, willingness to pay for environmental improvement and suggestions for improvement were measured by means of questionnaire survey and field observation. The purpose of this paper is to provide scientific basis and research case for urban rational planning, efficient management of government and construction of green space science in the future. The main conclusions are as follows: (1) from 1979 to 2014, the proportion of green space area in Guangzhou city showed the characteristics of periodic fluctuation (increase, decrease, increase and decrease), and the spatial pattern was more fragmented and complicated. Fragmentation pattern dominated by small and especially small patches. The area percentage of equilibrium grade of green spatial pattern shows the characteristic of "W" curve and the distribution law of four polynomial functions. Since 2000, the equilibrium grade of green spatial pattern has been polarized, and the regional differences are obvious (for example, Panyu, Panyu, Panyu, Panyu, Panyu, Panyu, Panyu). The larger the green patch area in Nansha and the central urban area, the better the effect of cooling and humidifying (such as Baiyun Mountain). Among them, 12: 00: 13: 00 pm) the temperature drop is the largest, 8: 00: 10: 00 am is the most humid, and 6: 00 10: 00 am in the morning. The characteristics of ecological service function of different green space types were obviously different. The cooling effect was as follows: Arbor 鈮，

本文编号：1913156