沙漠增温效应下绿洲气象要素时空效应特征分析  

Analysis on the Space-time Effect on Oasis Weather Factors under the Desert Incalescence Effect

作　　者：塔依尔[1] 吕新[2] 马兰花[2] 丁连军[2] 

机构地区：[1]石河子大学农学院 [2]新疆生产建设兵团绿洲生态农业重点实验室,新疆832003

出　　处：《干旱区资源与环境》2007年第2期146-150,共5页Journal of Arid Land Resources and Environment

基　　金：国家重大基础研究前期研究专项(2003CCA02300);石河子大学科学技术研究发展计划项目(ZRX2005053);石河子大学"263"青年骨干教师项目(NX02022)资助

摘　　要：本文对古尔班通古特沙漠及其南部不同距离绿洲的温度、气压、风向风速及净辐射进行了比较分析。结果表明,沙漠地表面温度和气温升降速度比绿洲观测点要快、变化幅度大;由于各观测点空气相对湿度和温度升降度不同,使得各观测点的气压升降幅度也不同,白天气压的变化曲线呈单蜂型;各观测点在12:00到18:00期间主导风向主要是南风,还有东南或西南风,在20:00时风速几乎为0;早上和晚上沙漠的净辐射高于绿洲,白天近地面净辐射绿洲大于沙漠;对绿洲气象要素时空效应特征分析,为棉花等绿洲优势作物的播种期、物候期、作物生育及生理生态特性具有一定的指导意义。This research is about the analysis on temperature of Gurbantunggut Desert and its south by distance, air pressure ,the direction and velocity of wind and clean radiations. The results indicated that the earth＇s surface temperature and air temperature of the desert comparing the oasis of the variety range are higher and ascend and descend of the speed are quicker;As the ascend and descend changes of air relative humidity and temperature are different at each observation spot, the variety curve of the air pressure of daytime shows the single type of wave At each observation spot the predominant direction of wind was mainly souther , still having the southeast or southwester at 12：00 - 18：00 ; Wind speed almost is 0 at 20：00 ;The clean radiation at the morning and the evening of desert are higher than in oasis, the clean radiation in oasis in the daytime is bigger than in desert.

关 键 词：古尔班通古特沙漠 局地环流 绿洲生态系统 

分 类 号：P46[天文地球—大气科学及气象学]