china has great physical diversity. the eastern plains and southern coasts of the country consist of fertile lowlands and foothills and is the location of most of china's agricultural output and human population. the southern areas of the country (south of the yangtze river) consist of hilly and mountainous terrain. the west and north of the country are dominated by sunken basins (such as the gobi and the taklamakan), rolling plateaus, and towering massifs. it contains part of the highest tableland on earth, the tibetan plateau, and has much lower agricultural potential and population.