Abstract: Based on the meteorological data from five weather stations of Shenyang during 1959-2005, the change trends and characteristics of the temperature, precipitation, relative humidity, wind speed of urban and rural areas of Shenyang are analyzed. The effect of urbanization on local climate in Shenyang is discussed. The results show that: 1 in recent 47 years, the temperature of Shenyang has increased remarkably, with the most obvious warming occurring in winter and spring, and a little warming trend in summer. Meanwhile, the warming trend of rural areas increases slightly faster than that of urban areas. 2 The change trends of precipitation, relative humidity, wind speed of Shenyang decreases mostly, of which wind speed decreases most and precipitation decreases least. Compared with relative humidity and wind speed, the seasonal change trend of precipitation is complex, with a little increase in winter. The analysis indicates that the development of urbanization in Shenyang has a serious effect on local climate, especially on the climate of rural areas. Furthermore, the effect of urbanization on temperature and wind speed is more obvious and direct than that on relative humidity and precipitation.

Key words: Shenyang, urbanization, local climate, seasonal variation

摘要： 利用1959-2005年沈阳及周边郊区4县（康平、新民、法库、辽中）台站的气候观测资料，研究分析了沈阳城区、郊区气温、降水量、相对湿度、风速的变化趋势和特点。在此基础上，探讨了城市化发展对沈阳区域气候变化产生的影响。研究发现：1) 近47年来，沈阳平均气温上升显著，其中冬季、春季增暖幅度最大，夏季最弱。同时，沈阳郊区增暖幅度略大于城区增暖幅度。2) 沈阳年降水量、相对湿度、平均风速整体均呈下降趋势，降幅以平均风速最大，降水量最小。沈阳降水量的季节变化比较复杂，冬季降水量轻微增加。分析结果显示，沈阳城市化发展对区域局地气候产生了重要影响，尤其是近年来对郊区气温影响显著。另外，城市化进程对平均气温、风速的影响比其对相对湿度、降水量的影响更为显著、直接。

关键词: 沈阳, 城市化, 区域气候, 季节变化