China's southern water towns are mainly cultivated by paddy fields to grow rice, and boats are the traditional means of transportation because of what?

Jiangnan water towns have a humid climate and many rivers on the surface, so it was difficult to build roads in the past and ships were used as a means of transportation in the rivers.

:The southern region is high in the west and low in the east, and the terrain is interspersed with plains, basins, plateaus and hills. The plains area has many rivers and lakes, water network, with the typical characteristics of the southern water country. Most of the hilly areas are lush and green with beautiful scenery.

Solution: Solution: The quality of land resources in various regions of China varies greatly. The eastern monsoon area, rain and heat at the same time, fertile soil, high productivity, concentrated about 90% of the country's arable land and forest land. Among them, the northern plains are vast, arable land, but lower heat, less precipitation, mainly drylands; southern hills, mountains, but high heat, abundant precipitation, mainly paddy fields, planting rice, oilseed rape, etc., the crop can be two to three a year. Northwest inland light, heat is more abundant, but drought, less rain, insufficient water to grasslands and deserts. Tibetan Plateau area of abundant light, but insufficient heat, land productivity is low;