Abstract

Ecological sensitivity analysis is an importantbasis of city planning. To optimize the land use layout andpromote the ecological construction and environmentalprotection, remote sensing technology and geographicinformation system technology are used to construct the indexsystem of ecological sensitivity analysis innovatively from fivelayers of nature. Then the comprehensive analysis andevaluation of the study area are carried out with the spatialdistribution of ecological sensitivity. The results show that theecological sensitivity of the study area is high on the whole.Extremely high and highly sensitive areas account for 36.08%of the research region, mildly sensitive and moderately sensitiveare as account for 52.20%, and non-sensitive area is the smallest,only account for 11.72%. Existing built-up lands are mainlydistributed in the moderately, mildly and non-sensitive areas.However, there are about 20% of the built-up lands distributedin the extremely high or highly sensitive areas. Overall, theconsideration of the ecological sensitivity of new developmentlands is insufficient. In the later urban expansion, the landdevelopment of the extremely high and highly sensitive areasshould be strictly limited. Furthermore, ecological restorationshould be performed at the same time or in the near future.