Ecological effects of urban greenland in winter

Based on the situation of urban heat island and the theory of urban green land plant ecology effect,typical urban greenland was selected and its microclimate was measured.The ecological benefits on urban green space of Yuan Da-Du Park in Beijing were studied in this paper.Four kinds of green space were studied in this experiment.The experiment was lasted for three days sequentially in winter.In this study,air temperature and relative humidity were continuously measured on these green spaces.The results were as follows: The temperature was lower and the relative humidity was higher in Pinus tabulaeformis woodland and mixed woodland.However,the temperature was higher and the relative humidity was lower in the lawn and Robinia pseudoacacia woodland.The temperature and relative humidity distribution were obtained in this research.At last,some advices for plant landscape building are put farward.