School of Geography Normal University 210023;
Research Center of New Urbanization and Land Problem Normal University 210023;
Jiangsu Provincial Geographic Information Resources Development and Utilization Cooperative Innovation Center 210023;
Institute of Geographic Sciences and Natural Resources Research Academy of Sciences 100101;
Key Laboratory of Regional Sustainable Development Modeling Academy of Sciences 100101;
School of Geographic Science Normal University 050024;
cultivated land pressure; spatiotemporal pattern; influencing factors; Huaihai Economic Zone; China;