摘要
改革开放以来,广东省经济发展迅速,土地利用结构地域特色鲜明.因此,解析近四十年来广东省土地利用结构阶段特征,对丰富国土空间规划基础研究具有重要意义.基于中国土地利用现状多时相遥感监测数据库中广东省土地利用类型矢量数据,结合CA-Markov模型、洛伦茨曲线和土地利用结构指数等方法进行结构量化分析.结果表明:(1)宏观政策对单一地类动态度的调控作用明显,预测显示2025年工矿居民用地将成为区域用地结构中第二大地类;(2)草地、工矿居民与未利用土地分布趋向集中;(3)水域、耕地趋向分散;(4)土地结构多样性、优势度变化显示珠三角各市域结构阶段变化更复杂,其变化程度更剧烈,其余三个片区结构变化相对平缓.土地原始结构在社会经济活动的累积下,会形成异化的土地利用结构,从地类的阶段动态、地域间差异两个角度解析了人类活动与土地利用的耦合关系演化具有重要意义.
Since the reform and opening up, the economic development of Guangdong province is rapid, and the regional characteristics of land use structure are distinct. Therefore, it is of great significance to analyze the stage characteristics of land use structure in Guangdong province in recent 40 years. Based on the vector data of land use types in Guangdong province in the multi-temporal remote sensing monitoring database of China’s land use status, the quantitative structure analysis is carried out by combining CA-Markov model, Lorenz curve and land use structure index. The results show that: the macro-control effect on the dynamic degree of single land type is obvious. The forecast shows that the industrial and mining residential land will become the second land type in the regional land use structure in 2025;the distribution of grassland, industrial and mining residents and unused land tend to be concentrated;the water area and cultivated land tend to disperse;the changes of land structure diversity and dominance show that the changes of urban structure in the Pearl River Delta are more complex and changeable and the structural changes of the remaining three areas are relatively gentle. Under the accumulation of economic and social activities, the original structure of land will form a dissimilated land use structure. It is of great significance to analyze the coupling relationship between human activities and land use from the perspectives of land class stage dynamics and regional differences.
作者
蒋超
龚建周
赵冠伟
孙家仁
JIANG Chao;GONG Jian-zhou;ZHAO Guan-wei;SUN Jia-ren(School of Gcographical Sciences,Guangzhou University,Guangzhou 510006,China;South China Institute of Environmental Science,MEP,Guangzhou 510655,China)
出处
《广州大学学报（自然科学版）》
CAS
2020年第4期88-95,共8页
Journal of Guangzhou University:Natural Science Edition
基金
国家自然科学基金资助项目(41671175)
国家重点研发计划资助项目(2016YFC0502803)
广东省自然科学基金资助项目(2017A030313240)。
作者简介
蒋超(1993—),男,硕士研究生.E-mail:jiangc_1122@163.com;通信作者:龚建周.E-mail:gongjzh66@126.com。
