摘要
分析粤港澳大湾区城市群建设用地时空演变特征,对实现大湾区城市群一体化发展战略具有重要的意义和参考价值。本文基于中国多时期土地利用/土地覆被遥感监测数据集(CNLUCC)数据,从粤港澳大湾区整体、三大都市圈、境内外、中心城市等多尺度探讨了1980—2020年粤港澳大湾区城市群数量和形态演化特征。结果表明:1.1980—2020年粤港澳大湾区城市建设用地在各尺度均呈现"先快后慢"的增长趋势。1980—2010年建设用地面积快速增长,扩张规模逐步扩大,之后增长较为缓慢,扩张规模稳定在合理水平。2010—2020年,珠中江都市圈仍然处于扩张过快的状态,但四大中心城市扩张态势正好相反;2.粤港澳大湾区城市群总体上呈现出"先外部扩张后内部填充"的演化形态,沿着四大中心城市主城区向外扩张,并在2010—2020年扩张趋势放缓,转为内部填充的方式;3.粤港澳大湾区景观格局总体上呈无序、破碎化、不规则化的发展趋势,境内各尺度建设用地形态变化具有相似性。1980—2000年各尺度建设用地形状越来越不规则,聚集度增加,且破碎化程度降低。2010—2020年,城市建设用地的景观格局指数均保持相对稳定的水平,这与该时期重视生态保护有一定关系;4.粤港澳大湾区城市群时空演化与各时期国家的土地政策息息相关。
Analyzing the spatio-temporal evolution characteristics of construction land in the Guangdong-Hong KongMacao Greater Bay Area urban agglomeration has important significance and reference value for realizing the integrated development strategy of the Greater Bay Area urban agglomeration.Based on the CNLUCC,this paper discussed the Quantity and morphological evolution characteristics of the urban agglomerations in the Guangdong-Hong Kong-Macao Greater Bay Area from 1980 to 2020 from the scale of the Guangdong-Hong Kong-Macao Greater Bay Area as a whole,the three metropolitan areas,within and outside China,and central cities.The results showed that:1.From 1980 to 2020,urban construction land in the Guangdong-Hong Kong-Macao Greater Bay Area showed a"fast first and then slow"growth trend at all scales.From 1980 to 2010,the area of construction land increased rapidly,and the scale of expansion gradually expanded,after which the growth was slower,and the scale of expansion was stable at a reasonable level.From 2010 to 2020,the Zhuhai-Zhongshan-Jiangmen Metropolitan Area was still in a state of excessive expansion,but the expansion of the four central cities was just the opposite;2.The urban agglomerations in the Guangdong-Hong KongMacao Greater Bay Area generally showed an evolutionary form of"external expansion first and internal infill",expanding outward along the main urban areas of the four central cities,and the expansion trend slowed down from 2010 to 2020,turning to internal infill The way;3.The landscape pattern of the Guangdong-Hong Kong-Macao Greater Bay Area showed a trend of disorder,fragmentation,and irregularity on the whole.The morphological changes of construction land at various scales within China were similar.From 1980 to 2000,the shape of construction land at various scales became more and more irregular,the degree of aggregation increased,and the degree of fragmentation decreased.From 2010 to 2020,the urban construction land landscape pattern index had maintained a relatively stable level,which was related to the emphasis on ecological protection during this period;4.The Spatio-temporal evolution of Urban Agglomerations in the Guangdong-Hong Kong-Macao Greater Bay Area was related to the national land policies in various periods.
作者
吕凤涛
麦建开
王园园
蒋昌晶
杨尧
王彬
LV Fengtao;MAI Jiankai;WANG Yuanyuan;JIANG Changjing;YANG Yao;WANG Bin(Guangdong Provincial Surveying and Mapping Engineering Campany,Guangzhou 510600,China;School of Geography,South China Normal University,Guangzhou 510631,China)
出处
《热带地貌》
2020年第2期27-37,共11页
Tropical Geomorphology
基金
广东省科技计划项目(2018B020207002)
关键词
粤港澳大湾区
城市群
建设用地
景观格局
扩张
Guangdong-Hong Kong-Macao Greater Bay Area
urban agglomerations
construction land
landscape pattern
expansion
作者简介
吕凤涛(1978-),男,广东广州人,高级工程师,主要从事大地测量、海洋测量、地理信息系统应用、国土调查研究。E-mail:lvfengtao1978@163.com;通信作者:蒋昌晶,男,广东广州人,工程师,主要从事大地测量、工程测量、不动产测绘、地理信息系统工程研究。E-mail:jcj_85@sina.com
