Urban Ecological Environmental Standards based on Subjective Evaluations of Various Environments

With fast urbanization, urban nature environment has been largely damaged. A primary ecological system is being destroyed. In order to a sustainable development, environmental standards for maintain an ecological system for a city have to be established. This study demonstrates a new approach for establishing urban ecological environmental standards according to subjective environmental evaluations. Firstly, urban ecological environmental system and standards based on subjective evaluations have been established. Following that, field studies in some typical sites of the Shenzhen six administration districts have been made. Based on relationship analyses of various physical parameters and socioeconomic indices with subjective evaluations of various environment, it is found that each environment has its different influence physical parameters and socioeconomic indices but the nature of industrial land use is one of all of them. Except sound pressure level, no statistical significance has been found to physical parameters and socioeconomic indices on any environmental evaluation, in which further study with more samples is needed. Eventually, The results will be used to guide urban designers and planners theoretically in their practices.