Using Urban Development Boundaries to Constrain Uncontrolled Urban Sprawl in China

Urban Expansion and Growth Boundaries in an Oasis City in an Arid Region: A Case Study of Jiayuguan City, China

“…The specific formulas were detailed in [61]. The mean random consistency index (RI) was selected according to Table 2 [38], the RI was 1.51, and the random consistency ratio (CR) less than 0.1. The technical process of the AHP method in this paper was shown in Figure 5.…”

“…On the contrary, "anti-planning" thinking, which was put forward by Yu [34,35], gives priority to the protection of ecological space and basic farmland, then forecasts the scale of construction land, which preferentially protects ecological space while also guaranteeing that the land needs of people are met. The studies adopting this approach use green infrastructure assessment, landscape ecological indices, ecological sensitivity evaluation, resource and environment carrying capacity evaluation, and space development suitability evaluation [36][37][38]. However, the delineation of UGBs is still at the exploratory stage in China.…”

China’s New Urban Space Regulation Policies: A Study of Urban Development Boundary Delineations

“…However, in China the concept of a UDB does not have a precise definition, and is not yet distinguished from the UGB. As a result, research on the UDB is closer to the UGB [24]. However, unlike the UGB, the UDB will be used to relieve the contradiction between urban plans and land use master plans in the future, not just to limit the irrational spatial sprawl of cities [42].…”

“…Little research has been conducted on UDBs since this idea was first proposed in 2013 [24,26], so this idea is still very similar to the urban growth boundary (UGB). The UGB concept was introduced with urban sprawl, but from the beginning it has been constrained within the rigid limits of urban land construction, and it has not been considered from a regional perspective.…”

“…Zoning delineates where urban growth is permitted, which ecological areas are to be protected, and where agricultural production can occur, and permits the implementation of differentiated land management policies. With this objective in mind, China's Central Urbanisation Work Conference in December 2013 proposed the rapid implementation of UDBs specific to each Chinese city, and especially China's large cities, to affect simulation experiments [24]. It has been proven that the SLEUTH model has great potential in urban dynamic simulations, and that it can achieve higher precision in large-scale simulations [25].…”