Early Warning of Resource and Environmental Carrying Capacity in Guangxi Coastal Region under the Background of New Urbanization

Abstract

Taken Guangxi coastal region as a case study, a set of early warning and evaluating indicator system that appropriated for resource and environmentbearing capacity of coastal area was established. By applying the decoupling elastic model, the relationship between urbanization level and depletion index was incorporated in the evaluation process of early-warning. The veto evaluation based on the departmental red line control was also added as improvement approach. Finally, the comprehensive early warning model that incorporated the basis evaluation, specific evaluation, process evaluation, veto evaluation and integrated evaluation was established. The research results indicated that resource and environment carrying capacity of Guangxi coastal regions were in poor condition with most of the region were overloaded except the Tieshangang district. The level of urbanization has increased, as well as the degree of resource and environmental depletion. The decoupling relationship between resource and environmental depletion and urbanization was expansion connection and the type of urbanization was extensive. Half of the study area was extremely severe warning level and three districts were the severe warning level. The major reasons were the tight per capita utilization of land resources, seriously seasonal and planned water pollution and unreasonable overdevelopment and exploiting of coastalzone resources. The extensive exploitation of urbanization was a secondary reason. The development of urbanization in Guangxi coastal region was expected to follow a new path of intensive, green, distinctive and intelligent urbanization.