It is not accurate to say that Southeast Asian physiography is dominated by any one particular landform. Southeast Asia is a geographically diverse region that encompasses a variety of landscapes, including plateaus, high relief mountains, flat plains, rolling hills, and dry-environment landforms.
Southeast Asia is located in a tectonically active area, where the collision of the Eurasian and Indo-Australian plates has resulted in the formation of high relief mountain ranges, such as the Himalayas and the Andes. These mountain ranges form the border between Asia and the surrounding continents and have contributed to the development of a variety of landforms, including plateaus, valleys, and plains.
In addition to high relief mountain ranges, Southeast Asia also includes extensive flat plains, such as the Mekong Delta in Vietnam and Cambodia, and the Irrawaddy Delta in Myanmar. These flat plains are formed by the deposition of sediment carried by rivers and are characterized by low-lying terrain and fertile soil.
Southeast Asia is also home to rolling hills, which are formed by the erosion of mountains and hills over time. These hills are often covered with vegetation and are found in areas with a moderate climate.
Finally, Southeast Asia includes dry-environment landforms, such as sand dunes, salt pans, and dry lake beds, which are found in areas with low rainfall and high temperatures.
In summary, Southeast Asian physiography is characterized by a variety of landforms, including plateaus, high relief mountain ranges, flat plains, rolling hills, and dry-environment landforms.
