Urban growth: Changes, management, and problems in large cities of Southeast China

Abstract

Compared with medium-sized cities, megacities play an increasingly important role in the rapid urbanization process in China. Owing to the expanding scale of large cities, urban sprawl leads to unsustainable practices that cause ecological, social, and environmental problems. Urban planning and land use planning are major driving forces of land use and land cover change in China. However, the goals of these two types of planning are different, and coordinating them is a challenge for local government decision makers. Thus, we use the SLEUTH model to simulate the implementation scenarios of future urban growth in Nanjing in the Jiangsu province of China. Using the scientific simulation data of the model, we contrasted the alternative futures of the two planning types for local government decision makers to achieve sustainable urban planning.The objective of our study is to explore the problems and possible solutions for urban management in the context of amegacity in China. The results of our study confirm the value of SLEUTH, which provid esextensive exploratory knowledge in evaluating the effects of possible local government decisions.

Key words： Urban growth; Urban planning; Land useplanning; SLEUTH; Megacity; Nanjing