Study on Urban Thermal Environment Ecological Security Evaluation Based on the Spatial Pattern
Urban heat island phenomena have become the important urban ecological environment problems with the urbanization speeding up in our country.The paper has carried on the urban thermal environment ecological safety evaluation in the study area based on RS and GIS technology and landscape ecological theory.The results show that:Urban ecological security threat level presents an increasing trend gradually from the outside to the inside.The complex of city underlying surface caused the staggered distribution of ecological safety space.The ecological construction and protection management of urban landscape should be strengthened in the daily management in the future.The ecosystem structure whose ecological security is low and loss of ecosystem services should be optimized.The higher value area of urban landscape ecological security and ecosystem service is to strengthen the protection.The forest and farmland should be put efforts to increase vegetation coverage,because they have very good support role on the whole urban ecological landscape pattern.It may promote urban ecological environment optimization and development towards the good direction by adopting these measures.