汉江流域典型区域近60年来气候变化特征与趋势分析  

The variation and tendency of climate change of classical lakes in Hanjiang River Basin from 1951 to 2010

作　　者：李柏山[1,2] 粟颖 李海燕[1] 周培疆[1] 尹珩[1,4] 

机构地区：[1]武汉大学资源与环境科学学院生物质资源化学与环境生物技术湖北省重点实验室,武汉430079 [2]中共贵阳市委党校,贵阳550005 [3]贵航贵阳医院,贵阳550009 [4]武汉市环境保护科学研究院,武汉430015

出　　处：《环保科技》2015年第6期1-7,共7页Environmental Protection and Technology

基　　金：湖北省环境保护厅环保专项基金(20110307)

摘　　要：20世纪后期,全球增暖趋势明显,受此影响,汉江流域的气候也受到不同程度的影响。本文选取了1951—2010年的3个代表站点气温、降水量资料,通过计算趋势系数等现代统计方法,对汉江流域3个典型区域近60年气温和降水变化进行分析。结果表明,近60年来,汉江流域年平均气温整体呈上升趋势,在90年代发生突变,进入显著性升温时期,2008年增温幅度达到1951—2010年来的最大值,并且4季均呈现增温趋势;降水量整体呈不明显下降趋势,其中春、秋、冬3季降水量呈较明显下降趋势,夏季的降水量呈缓慢的下降趋势。1951—2010年,汉江上游流域平均气温增高,降水量上升;汉江中下游流域平均气温增高,降水量下降,说明了汉江中下游流域的暖干气候在加强。in the late 20 th century,the trend of global warming has been increasingly clear. The climate of Hanjiang River Basin has also been affected to a certain extent. In this research,the data of temperature and precipitation in three representative sites in the past sixty years,from 1951 to 2010,are analyzed by modern statistical methods（ as calculating the trend coefficient） to find out the variation in temperature and precipitation in this region. The results show that the average temperature in the middle and lower Hanjiang River Basin have generally been on the rise in the past sixty years independent to the seasons; the increase became significant in the 1990 ＇s and reached the highest in2008; the precipitation in the region is witnessed a slight decrease in summer while a significant decrease in spring,autumn and winter respectively. From 1951 to 2010,average temperature and precipitation increase were observed in the upper reaches of Hanjiang River Basin,while the increase of average temperature and decrease of the precipitation were witnessed in the middle and lower reaches of Hanjiang River basin,implying that the warm and dry climate in the middle and lower reaches was strengthening.

关 键 词：汉江流域 气候变化 气温 降水量 趋势系数 

分 类 号：X321[环境科学与工程—环境工程]