摘要
绿色空间是生态系统必不可少的部分,能够有效控制城市无序蔓延,维持区域生态平衡,在低碳城市和人居环境建设中具有重要的利用价值。因此,研究城市绿色空间布局对合理规划城市、改善生态环境具有重要意义。基于此,本文以济南市为研究对象,对TM、ETM和OLI遥感影像数据进行监督分类处理,分析2002到2015年济南市城市绿色空间的时空变化及其生态效应。结果表明,2002~2015年间,济南市城市绿色空间面积呈减少趋势,减少了224.42 km2,其中林灌草地减少最多,减少了130 km2;土地利用类型变化较大的区域是商河县和济阳区;绿色空间降低的潜在影响是城区空气质量状况的下降,数据初步表明,济南市年平均气温和环境可吸入颗粒物均呈上升趋势,与绿色空间的降低呈现一定的同步性。
Green space is an essential part of the ecosystem. It can effectively control the disorderly sprawl of cities and maintain regional ecological balance. It has important utilization value in the construction of low-carbon cities and human settlements. Therefore, it is of great significance to study the layout of urban green space to rationally plan the city and improve the ecological environment. Based on this, taking Jinan as the research object, the TM, ETM and OLI remote sensing image data are supervised and classified to analyze the changes and ecological effects of urban green space in Jinan from 2002 to 2015 in this paper. The results show that from 2002 to 2015, in general, the green space in Jinan showed a decreasing trend, a total of 224.42 km2, and the forest shrubs had the largest reduction, a total of 130 km2;the land use type changed greatly in Shanghe County and Jiyang District;the potential impact of the reduction of green space is the reduction of air quality in urban areas. The data preliminarily show that the annual mean temperature and environmental respirable particulate matter in Jinan are both increasing, showing a certain synchronization with the reduction of green space.
出处
《地理科学研究》
2023年第2期184-199,共16页
Geographical Science Research
