干旱区研究 ›› 2011, Vol. 28 ›› Issue (2): 242-250.

• 气候与气候资源 • 上一篇    下一篇

1960-2009年巴丹吉林沙漠南北缘气候变化分析

马宁1, 王乃昂1, 李卓仑1, 陈秀莲2, 朱金峰1, 董春雨1   

  1. 1. 兰州大学资源环境学院 兰州大学干旱区水循环与水资源研究中心, 甘肃 兰州 730000;
    2. 内蒙古自治区阿拉善盟气象局, 内蒙古 巴彦浩特 750306
  • 收稿日期:2010-04-14 修回日期:2010-07-04 出版日期:2011-04-25 发布日期:2011-09-06
  • 通讯作者: 王乃昂.E-mail: wangna@lzu.edu.cn
  • 作者简介:马宁(1990- ),男,安徽蒙城人,本科生,主要从事区域气候变化研究. E-mail:ma.n2007@yahoo.com.cn
  • 基金资助:

    国家基础科学人才培养基金(J0730536)和高等学校博士学科点专项科研基金(20090211110025)联合资助

Analysis on Climate Change in the Northern and Southern Marginal Zones of the Badain Juran Desert during the Period 1960-2009

MA Ning1, WANG Nai-ang1, LI Zhuo-lun1, CHEN Xiu-lian2, ZHU Jin-feng1, DONG Chun-yu1   

  1. 1. College of Resources and Environmental Sciences, Center for Hydrologic Cycle and Water Resources in Arid Region, Lanzhou University, Lanzhou 730000, China;
    2. Alxa Meteorological Bureau of Inner Mongolia Autonomous Region, Bayanhot 750306, China
  • Received:2010-04-14 Revised:2010-07-04 Online:2011-04-25 Published:2011-09-06

摘要: 利用巴丹吉林沙漠北缘的额济纳旗、拐子湖和南缘的阿拉善右旗、雅布赖4个气象站,1960-2009年逐月平均气温、降水量和相对湿度资料,运用一元线性回归、趋势系数分析和5年滑动平均方法,分析近50年来沙漠南北缘气候变化趋势。结果发现:近50年来,巴丹吉林沙漠南北缘年平均气温显著升高,升温速率为0.27~0.48℃/10a,高于同期全国和西北地区东部平均升温速率。北缘的年平均气温升温速率和升温趋势均大于南缘。南北缘各季节年均气温显著升高,各站均表现为冬季升温速率最大,但各季节平均气温的升温趋势有差异。巴丹吉林沙漠南北缘各站年降水量波动很大。近50年来,北缘年降水量略有减少,南缘略有增加。各站点季节降水量变化趋势亦不明显,且不同站点变化特征不同。沙漠南北缘湿润度很低,属极干旱等级。近50年来,北缘年平均湿润度略有下降,南缘则略有上升,但湿润度的变化趋势不明显。

关键词: 气候变化, 气温, 降水, 湿润度, 变化趋势, 巴丹吉林沙漠

Abstract: In this paper, the basic characteristics of climate change in the northern and southern marginal zones of the Badain Juran Desert are analyzed using the linear regression, trend factor analysis and 5-year moving average based on the observed data of monthly mean air temperature, precipitation and relative humidity, recorded by 4 meteorological stations including Erjina Banner and Guaizihu in the northern marginal zone of the desert and Alxa Right Banner and Yabra in the southern marginal zone during the period 1960-2009. The results show that there was a significant temperature increase in the southern and northern marginal zones of Badain Juran Desert in recent 50 years. The increase rate of mean annual temperature varied in a range of 0.28-0.48 ℃/10 a, and it was higher than the national average and the average in the eastern part of northwest China, in which it was higher in the northern marginal zone than in the southern marginal zone. The mean seasonal temperature increase was also significantly, especially in winter. Annual precipitation fluctuated significantly, and it was reduced to some extent in the northern marginal zone but increased slightly in the southern marginal zone. The change of seasonal precipitation at all the stations was not so remarkable. The humidity in the northern and southern marginal zones was very low, and it was extremely arid. The annual humidity in the northern marginal zone was decreased slightly but increased slightly in the southern marginal zone. However, the change trend of humidity was not so significant.

Key words: climate change, temperature, precipitation, humidity, change trend, Badain Juran Desert

中图分类号: 

  • P467