Distribution of Chinese natural disaster

（1）Coastal disaster zone: typhoon, storm, rainstorm, flood, drought, seawater intrusion, earthquake

（2）Disaster along rivers：

rainstorm, drought, soil erosion, landslide, mud-rock flow

• ①Drought and flood: most frequent in lower reaches, followed by the middle reaches and minimum disasters in upper reaches.
• ②Landslide, mud-rock flow: most diatributed in upper reaches.
• ③Reasons: sharp reduction of forest area, development of urbanization and industrialization

（3）Mountain Hazards zone: Earthquake, mud-rock flow, landslide and hail.

Map source: Atlas of Natural Disaster System in China