成都平原经济区气候特征分析

利用1981~2015年成都平原经济区50个气象站逐月气温和降水观测资料，统计分析了成都平原经济区的气候特征。结果表明:成都平原经济区气温空间分布呈西北低-东南高的特征，其中遂宁、资阳、成都东南部、眉山东部、雅安南部以及乐山东北部气温较高，而峨眉山及绵阳北部龙门山脉气温较低；时间变化上，气温呈显著的上升趋势，在1996年发生了由低到高的突变。成都平原经济区降水空间分布特征是峨眉山-眉山西部-雅安中部区域较多，成都西部以及绵阳市中西部次之；时间变化上，降水主要集中在7月和8月，表现出雨热同期的特点，近35a呈较显著的下降趋势。 

Study on Climatic Characteristics of Chengdu Plain Economic Zone

Based on the temperature and precipitation data of 50 regional stations and operational stations from 1981 to 2015, the spatial and temporal distribution characteristics of precipitation and temperature in Chengdu plain economic zone were analyzed. The conclusions are as follows: The spatial distribution characteristics of temperature in Chengdu plain economic zone are low in the northwest and high in the southeast. Suining, Ziyang, southeast of Chengdu, east of Meishan, south of Ya 'an and northeast of Leshan are high temperature regions. Mount Emei and Longmen Mountains belong to low temperature area. The temperature of Chengdu plain economic zone showed an obvious upward trend, and the abrupt change of temperature occurred in 1996. The precipitation in Chengdu plain economic zone was high, and there were large precipitation areas in Mount Emei, western Meishan and the central region of Ya 'an, followed by the western of Chengdu and the central and western of Mianyang. The precipitation in Chengdu plain economic zone showed a significant downward trend. The monthly analysis showed that the precipitation was concentrated in the July and August, that is to say, the large rain and high heat occurred in the same period in Chengdu plain economic zone.