郑州大都市区“生产-生活-生态”用地转型图谱特征分析

Research on the characteristics of the production-living-ecological land use transformation map in the Zhengzhou metropolitan area

基于郑州大都市区1980—2020年5期的土地利用分类数据,在构建“三生空间”用地分类体系的基础上,本文运用地学信息图谱方法探讨1980—1990、1990—2000、2000—2010和2010—2020年4个时序单元内“三生空间”时空转移图谱和涨落势图谱特征,分析了郑州大都市区40年来“生产-生活-生态”用地转型规律及发展过程。结论表明:(1)郑州大都市区“三生”用地结构以农业生产用地和农村生活用地为主,农业生产用地持续减少,工矿生产用地、城镇生活用地和农村生活用地均持续增长。(2)水域、林地等生态用地持续向农业生产用地转移,主要分布在平原地带和黄河沿岸。农业生产用地转变为城乡生活用地和工矿生产用地较为显著,主要分布在郑州主城区远郊以及各地级市、县区等建成区外围。(3)在涨势图谱中,2000年之前以新增农业生产用地面积为主, 2000年之后以新增城乡生活用地和工矿生产用地为主。在落势图谱中,农业生产用地成为其他用地变化的来源,萎缩持续严重。这些成果可为郑州大都市区国土空间的集约利用及土地管控预警等提供技术支撑。

Based on the land use data of Zhengzhou metropolitan area from 1980 to 2020 and constructing the classification system of production-living-ecological land,this paper used the method of geoscience information atlas to explore the characteristics of space-time transfer atlas and fluctuation potential atlas of production-living-ecological land in four time series units from 1980 to 1990,1990 to 2000,2000 to 2010 and 2010 to 2020,and analyzed the transformation law and development process of production-living-ecological land in Zhengzhou metropolitan area in the past 40 years.The results showed that:(1)The structure of production-living-ecological land in Zhengzhou metropolitan area was dominated by agricultural production land and rural living land.The agricultural production land continued to decrease,and the industrial and mining production land,urban living land and rural living land continued to grow.(2)The ecological land such as water area and forest land continued to transfer to agricultural production land,mainly distributed in the plain and along the Yellow River.The transformation of agricultural production land into urban and rural living land and industrial and mining production land was relatively significant,which was mainly distributed in the outer suburbs of the main urban area of Zhengzhou and the periphery of built-up areas such as local cities and counties.(3)In the rising trend map,the area of new agricultural production land was mainly before 2000,and the areas of new urban and rural living land and industrial and mining production land were mainly after 2000.In the falling trend map,agricultural production land became the source of other land changes,and the shrinkage continued to be serious.These achievements can provide technical support for the intensive use of land space and land management and early warning in Zhengzhou metropolitan area.