CAJ | 학술논문

随着城市的快速发展，城市热岛（UHI）问题越来越突出，如何缓解城市发展所带来的热岛效应加剧，提高居民健康生活质量，改善人居环境，已成为全民关注的重点生态环境问题。在高度发达的城市区域，绿地对城市热岛具有明显的降温效应，因此对其进行定量研究具有重要意义。文章基于遥感和 GIS 的方法，通过热环境反演和空间统计分析，以广州市主城区30块主要城市公园为研究对象，分别从城市绿地形态、城市绿地缓冲区和热环境三维分析3个方面研究了城市绿地对城市热岛的影响。结果显示：城市绿地形态（面积，周长，形状指数）与公园的温度具有较强的对数相关性，并且随着三者的增大，绿地内部均温和最低温度均降低，并且呈现“饱和”趋势；通过对城市公园斑块建立3个缓冲区（120、240、360 m），并进行缓冲区内的均温统计发现，30个城市公园的温度变化呈现出3种情形，即自内向外变高、变低和不变；最后，为了更好的解释上述3种情形，引入三维热环境分析，对3种情形分别选取代表性公园进行分析，总结其空间分布规律，结合相关数据对产生的这种结果进行了简要分析。本文的主要创新点，在对城市公园与热环境关系传统分析的基础上，引入三维的分析方法，能够更加清晰的展示二者的关系，为未来的相关研究提供一定的借鉴。
수착성시적쾌속발전，성시열도（UHI）문제월래월돌출，여하완해성시발전소대래적열도효응가극，제고거민건강생활질량，개선인거배경，이성위전민관주적중점생태배경문제。재고도발체적성시구역，록지대성시열도구유명현적강온효응，인차대기진행정량연구구유중요의의。문장기우요감화 GIS 적방법，통과열배경반연화공간통계분석，이엄주시주성구30괴주요성시공완위연구대상，분별종성시록지형태、성시록지완충구화열배경삼유분석3개방면연구료성시록지대성시열도적영향。결과현시：성시록지형태（면적，주장，형상지수）여공완적온도구유교강적대수상관성，병차수착삼자적증대，록지내부균온화최저온도균강저，병차정현“포화”추세；통과대성시공완반괴건립3개완충구（120、240、360 m），병진행완충구내적균온통계발현，30개성시공완적온도변화정현출3충정형，즉자내향외변고、변저화불변；최후，위료경호적해석상술3충정형，인입삼유열배경분석，대3충정형분별선취대표성공완진행분석，총결기공간분포규률，결합상관수거대산생적저충결과진행료간요분석。본문적주요창신점，재대성시공완여열배경관계전통분석적기출상，인입삼유적분석방법，능구경가청석적전시이자적관계，위미래적상관연구제공일정적차감。
With the rapid urbanization, urban heat island (UHI) has become the ecological problems focused nationally. How to relieve increasing urban heat island effect under the quickly urban expansion, improve residents' quality of life and improve human settlements, has become a universal concerned eco-environmental problem. In highly developed urban areas, green spaces with cooling effect, therefore, it is of great significance to quantitative research. Based on geographic information system (GIS) and remote sensing (RS), with derivation of land surface temperature (LST) and spatial statistical analysis, this paper analysis the effect on UHI of urban green land from three aspects, using the major 30 green lands in Guangzhou as a case study. Results show that pattern of urban green land (area, perimeter, shape index) and the temperature of green land have strong correlation;meanwhile, with the increasing of these three indexes(area, perimeter, shape index), average temperature and lowest temperature appear as"saturation“trend within the green land. With the statistics of average temperature in three buffer(120 m, 240 m, 360 m), temperature variation show three situation from the inside out, namely higher, lower and invariant. At last, in order to explain the above three scenarios better, a three-dimensional (3D) analysis method was introduced. We select typical green lands in three situations above, analyze and summarize their spatial distribution regulation, and give a brief analysis. The main innovation of this paper is: based on the traditional research, we introduce a 3Danalysis method, which makes the relationship between urban and LST clearer, and the result could provide a reference for feature research.