Abstract:

Based on the daily land surface meteorological data of Tongling weather station during 1980-2012, some climatic indices concerned with urban environment, such as plants growing season index, human comfort index, degreedays index and hazy days in Tongling are analyzed. In addition, the effect of area climate change on urban environment is also analyzed. Based on the analysis, some results can be drawn. Firstly, growing season length and human comfortable days are increasing, which indicates that the main environmental climatic conditions in Tongling area are becoming more and more fitting for human habitation in recently 33 years. Secondly, the cooling degree days index is in creasing while the heating degree days index and haze days are declining. It indicates that the energy consumption of Tongling area in the future summer will be further increasing, but the energy consumption for warming in winter will be expected to decline substantially. It will be helpful to improve the air quality. Thirdly, the correlation analysis suggests that the plants growing season index, cooling degree days and thermal uncomfortable days are significantly positively correlated with the annual mean temperature; while those of heating degree days, cold uncomfortable days and haze days are negatively correlated with the annual mean temperature. In short, the regional climate warming is helpful to improve the ecological environment of Tongling area