可识别潜在易发区域 全国高精度滑坡泥石流风险“图谱”上线

Core Viewpoint - The China Meteorological Administration has successfully developed a landslide and debris flow surface risk zoning product with a spatial resolution of 1 kilometer, aimed at scientifically addressing the critical question of "where landslides and debris flows are likely to occur" [1]. Group 1 - The product integrates six major categories of disaster-environment factors, including terrain, geology, soil, vegetation, hydrology, and human activities, comprising a total of 16 types of underlying surface data [11]. - The research team employed standardized processes such as rigorous calibration, unified coordinates, vector conversion, reclassification, and resampling to create a comprehensive dataset that characterizes the spatial heterogeneity of surface environmental features across the country [11]. - Based on known geological disaster points or hazard points, the product intelligently analyzes these underlying surface environmental features to objectively identify potential areas prone to landslides and debris flows nationwide, using a 1-kilometer resolution orthogonal grid as the basic unit [11]. Group 2 - The product will be regularly updated to incorporate newly collected disaster and hazard point information, continuously optimizing the surface risk identification and zoning results [11].