2026-10-14T11:02:24Z https://www.scidb.cn/oai

10.57760/sciencedb.IGA.00676 2023-10-27T16:10:33Z

2023-10-27 Liaoning Province 1:250000 Highway Distribution Dataset (2013) doi:10.57760/sciencedb.iga.00676 en a. Data content (data file/table name, including observation index content) Data File Name: Liaoning Province 1:250000 Highway Distribution Dataset (2013) Main content: Ln high-speed. shp Ln Expressway. shp Ln National Highway. shp Ln Provincial Highway. shp Ln County Road. shp Ln Township Village Road. shp Ln Other Roads.shp b. Construction purpose To provide data support for studying agricultural ecological changes, farmland sampling design, and the impact of road distribution on agricultural production. c. Service object Students and researchers engaged in agricultural ecological research. d. Time range of data The data source was in 2013. e. The spatial range and projection method of data Space scope: Liaoning Province Liaoning Province; Highway Distribution; 2013 杜书立 PUBLIC https://creativecommons.org/licenses/by/4.0/ dataset Science Data Bank