近30年羌塘自然保护区气候特征分析  

Analysis on the Climatic Characteristics of the Qiangtang Nature Reserve in Tibet in Recent 30 Years

作　　者：李林[1,2] 杨秀海[2] 扎西央宗[2] 巴桑顿珠[2] 

机构地区：[1]西藏自治区科技信息研究所,拉萨850000 [2]西藏高原大气环境科学研究所,拉萨850000

出　　处：《高原山地气象研究》2010年第1期62-65,共4页Plateau and Mountain Meteorology Research

基　　金：国家自然科学基金项目"羌塘国家自然保护区空间信息共享环境应用研究"(40761018)

摘　　要：本文利用羌塘自然保护区周边6个气象站1978～2007年30年数据，利用气候统计方法，分析了温度、积温、降水的趋势变化。结果表明：该地区年平均温度、年平均最高温度、年平均最低温度都呈上升趋势，且上升幅度远远大于全球、全国平均水平；≥0℃积温、≥5℃积温呈增加趋势，初日提前，终日推迟，持续日数增加；降水的区域特征明显，自东向西呈递减趋势。年降水量呈上升趋势。In this paper, we analyzed the changing trend of temperature, accumulated temperature and precipitation by using the meteorological data of the six stations around the Qiangtang Nature Reserve. The results show that ： the average annual temperature, annual mean maximum temperature and annual mean minimum temperature in this region are rising and the rate of increasing is much great than the global or national average. ≥0℃ Accumulated temperature and ≥5℃ Accumulated temperature showed an increasing trend, the Start date brought forward and the end date delayed, duration to increase. The annual precipitation in Qiangtang is generally on the rise. The spatial pattern of the precipitation is distinct and it is decreasing from east to west.

关 键 词：羌塘自然保护区 气候特征变化 

分 类 号：P463.2[天文地球—大气科学及气象学]