Monitoring of “Illegal Buildings and Appropriation of Land” in City

　　Based on high-resolution remote sensing satellite data, we regularly conduct monitoring of 9 types of “Illegal Buildings and Appropriation of Land” such as illegal newly-added building, additional construction on building, newly-added shed, destruction of green land in task area, initiating new model of monitoring of “Illegal Buildings and Appropriation of Land”, which has greatly helped city administrations improve the frequency and efficiency of the monitoring and management of “Illegal Buildings and Appropriation of Land”.