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冰川冻土 ›› 2007, Vol. 29 ›› Issue (4): 617-625.

• 冰冻圈与全球变化 • 上一篇    下一篇

10ka BP来石羊河流域气候演变特征分析

徐启运, 郭慧, 尹宪志, 徐文君, 史志娟, 黄涛, 奚立宗   

  1. 中国气象局, 兰州干旱气象研究所, 甘肃省干旱气候变化与减灾重点实验室, 甘肃, 兰州, 730020
  • 收稿日期:2006-12-04 修回日期:2007-01-06 出版日期:2007-08-25 发布日期:2012-04-26
  • 基金资助:
    国家科技部攻关“西部开发科技行动”重大项目(2004BA901A16);甘肃省自然科技开发基金项目(3ZS041-a25-013);中国气象局气候变化专项(CCSF2007-26)资助

Climate Evolution in the Shiyang River Basin of China since 10 ka BP

XU Qi-yun, GUO Hui, YIN Xian-zhi, XU Wen-jun, SHi Zhi-juan, HUANG Tao, XI Li-zong   

  1. Key Laboratory of Arid Climate Change and Reducing Disaster of Gansu Province, Institute of Arid Meteorology, China Meteorological Adminstration, Lanzhou Gansu 730020, China
  • Received:2006-12-04 Revised:2007-01-06 Online:2007-08-25 Published:2012-04-26

摘要: 根据石羊河流域及周边地区的大量研究结果分析,整理和建立了10 ka BP来石羊河流域气候演变序列,可以划分出主要的7个气候湿润期和6个干旱期.近50 a以来石羊河流域气候干旱化趋于显著,有4个主要特点:1971—2000年比1951—1980年平原绿洲地区年平均降水(气温)增加(正常);高山和沙漠边缘地区降水量减少(气温正常或偏高);大部分地方年平均蒸发量普遍减少10~131 mm;年平均沙尘暴、雷暴日数减少.

关键词: 石羊河流域, 气候演变, 分析研究

Abstract: Based on the study results of water resources,climate and glacier variations in the Shiyang River Basin and its adjacent regions,the features of dryness/wetness evolution since 10 ka BP are investigated and its variation series is built.There are seven wet and six dry climatic phases recognized.Furthermore,there are four features in the main climate change in the last 50 a.It is found that the mean annual precipitation in the oasis in the region from 1971 to 2000 was higher than that from 1951 to 1980,but the temperature change in the oasis was not evidence.Meanwhile,the precipitation in the edge of the high mountains and the desert decreased evidently,with an increasing temperature.Furthermore,the mean annual evaporation in most of the region had decreased 10~131 mm,the days of the mean annual sand storm and the thunderstorm had decreased too.

Key words: Shiyang River Basin, climate evolution, analysis

中图分类号: 

  • P467