What are the location factors and characteristics of Asian monsoon paddy field agriculture?

(1) Rice planting is a kind of labor-intensive agriculture, with high labor intensity, and intensive cultivation requires a lot of labor. East Asia, Southeast Asia and South Asia are densely populated and rich in labor; (2) The rice yield is high. The rice-growing areas in Asia are the most densely populated areas in the world, with less cultivated land per capita. Planting rice here can alleviate the population's pressure on land and demand for food. (3) The tropical rain forest climate, tropical and subtropical monsoon climate here have sufficient hydrothermal conditions; (4) Rice is concentrated in plain and hilly areas; 5] Rice is concentrated in the middle and lower reaches of rivers and plains, with abundant water resources.

Edit the characteristics of rice cultivation in Asia in this paragraph.

(1) Small-scale agriculture. Rice production takes the family as the unit. Due to the shortage of arable land per capita, there is very little farmland cultivated by each household. The rice planting area of each household in southern China is generally less than 1 hectare. (2) The output per unit area is high, but the commodity rate is low. Farmers intensively cultivate in the fields, which makes the yield of rice per unit area higher. However, due to the small scale of production, the total output of rice per household is not large, and restricted by traditional concepts and economic level, farmers keep a considerable part of the collected rice for their own use, while the rice sent to the market for sale is limited; But Thailand is a special case, with a lot of exports. (3) The level of mechanization and technology is low. Farmers generally engage in manual labor. Although electric irrigation threshing has developed rapidly in recent twenty years, and the use of chemical fertilizers and pesticides has gradually increased, the overall mechanization and scientific and technological level are still relatively low; The mechanization level of rice production in other Asian countries is still very low except Japan, which has made great progress in the mechanization of rice fields. (4) The scale of water conservancy projects is large. Irrigation is the basis of rice production. Frequent floods and droughts in monsoon region pose a great threat to rice production. Small-scale farmers are unable to build water conservancy projects and need the government to invest and organize water conservancy projects.