Information base of Geoenvironmental cartography — Charter of hydrogeological instability and danger

The Charter of Disruption and Danger states: — areas with high instability — potentially unstable areas — areas subject to sinking and surface erosion processes — erosion phenomena — floodable and floodable areas — areas with high vulnerability to groundwater resources《动荡与危险宪章》规定如下： — 高不稳定区域 — 潜在不稳定区域 — 受沉降与地表侵蚀作用影响的区域 — 侵蚀现象 — 易受淹区域 — 地下水资源脆弱性高的区域