2026-10-10T19:14:46Z https://www.scidb.cn/oai

10.57760/sciencedb.cjae.00276 2026-08-04T10:56:38Z

2026-08-04 Spatial Zoning and Attribution Analysis of Land Ecological Security at the County Level in the Yangtze River Delta Urban Agglomeration doi:10.57760/sciencedb.cjae.00276 en This dataset supports the research findings of the article "Spatial Zoning and Attribution Analysis of Land Ecological Security at the County Level in the Yangtze River Delta Urban Agglomeration". The research area covers 295 county-level administrative units in the Yangtze River Delta urban agglomeration, with a time span from 2010 to 2023. The dataset mainly consists of the following parts: Original data of the diagnostic index system for land ecological security in counties in the Yangtze River Delta (27 indicators, dynamically standardized); Comprehensive index of county-level land ecological security for each year from 2010 to 2023 calculated based on the vertical and horizontal grading method; County dynamic trajectory clustering results based on machine learning K-means algorithm (including initial level, change rate, goodness of fit R ², and type labels); The results of global spatial autocorrelation analysis and local spatial autocorrelation analysis; Layered geographic detector factor detection and interaction detection output results; Vector data of county-level administrative divisions in the Yangtze River Delta region (including elevation, water system, highways, cities, and other elements); Base map of the research area (based on the standard map with approval number GS (2019) 1822). The data formats are mainly. csv table files and. shp vector files, both of which can be opened with commonly used software such as Microsoft Excel and ArcGIS.  land ecological security; dynamic trajectory clustering; geographical detector; counties in the Yangtze River Delta; hierarchical heterogeneity Weng Yijing cui ya lun Xu Fei RESTRICTED dataset Science Data Bank