Abstract:Because of significant difference of the radiant intensity and atmosphere between green land and non-green land, and variation in the different temperature, microclimate circumfluence can form. The thermal characteristics and the intensity of microclimate circumfluence are different between the various kinds of landscapes. The different environment effects are experienced by different city landscapes which have different green distributions. Study on the thermal characteristics of different green distribute landscapes in the city will help to improve the management and maintenance of city environment, and keep it at a high level. Three kinds of different green-covered land (city forest, shrubbery and lawn) were selected in Taiyuan city to carry out this experiment. The temperature was recorded by thermometer attached to a hydrogen balloon. A conclusion was reached by analyzing the survey data, using thermal characteristics during the day and the spatial characteristics of the temperature fields in the afternoon. All these kinds of green land have obvious thermal characteristics. Especially the thermal characteristics in forest are much more in evidence than the other two green-covered lands. The cool-edge influence was up to 14 meters from the edge of the forest in height and from1.5 meters to 3 meters in diameter. The influence could increase the temperature at dusk. The effect of shrubbery and the lawn on decreasing or increasing the temperature was weaker than the forest and the effective height and distance are also much shorter than the forest. All the spatial temperature fields of different green lands have both high temperature and low temperature centers. All this provides strong evidence of the existence of microclimate circumfluence between different green lands and this will help in further study on microclimate circumfluence formed between different urban green lands.