(1) Natural factors:
Climate: high temperature throughout the year or high temperature in summer, sufficient heat, abundant precipitation, rain and heat at the same time
Terrain: plain terrain, Flat terrain
Water source: deep soil, fertile soil
Soil: sufficient water source, convenient irrigation
(2) Socioeconomic factors:
Labor force: Densely populated planting has a long history and rich experience
Production habits: Planting has a long history and rich experience
Eating habits: Rice is the main food that people like
Per capita cultivated land: more people but less land, greater demand for food, and high rice yields, which can alleviate the pressure on land and the demand for food