What type of agriculture do many people in Southeast Asia still practice

In Southeast Asia, the practice of rice paddies, terrace farming, and planations dominate the agricultural sector. Use of water buffalo and other simple tools are used to plow the land, instead of machines. Water can come from floods. In Thailand, water can come from melting ice from the Himalayan Mountains, which is practical for growing rice, which needs to be submerged. This part of Asia is rugged from mountains. Therefore, terrace farming is used. It is a method that originally developed in China. Steps are made by cutting in the Earth to make flat areas of a mountain so crops can grow.