干旱区研究

干旱区研究 ›› 2012, Vol. 29 ›› Issue (1): 27-34.

• 气候及气候变化 • 上一篇    下一篇

西安市气温和降水变化趋势分析

周正朝1,2,胡娜娜1,周华1   

    1.  陕西师范大学 旅游与环境学院, 陕西 西安　710062；
    2. 中国科学院水土保持研究所 黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西 杨凌　712100
  • 收稿日期:2010-10-20 修回日期:2010-12-16 出版日期:2012-01-15 发布日期:2012-02-27
  • 作者简介:周正朝（1980-），男,四川泸州人,博士,副教授，主要从事环境变化与土壤侵蚀研究.E-mail:zhouzhengchao@126.com
  • 基金资助:

    国家自然科学基金青年基金项目（40901131）；陕西省自然科学基金（2011JQ5005）

Analysis on the Change Trend of Temperature and Precipitation in Xi’an during the Period of 1961-2009

ZHOU Zhengchao1, 2，HU Nana1，ZHOU Hua1   

    1. College of Tourism and Environmental Sciences, Shaanxi Normal University, Xi’an 710062，China;
    2. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, 
      Chinese Academy of Sciences, Yangling 712100, Shaanxi Province, China)
  • Received:2010-10-20 Revised:2010-12-16 Online:2012-01-15 Published:2012-02-27

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被引次数

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摘要： 利用西安市1961-2009年的月平均气温与降水资料，对西安市气候特征及动态变化进行分析。结果显示：年平均气温及春、秋、冬季气温呈上升趋势，增温率分别为0.3 ℃/10 a，0.54 ℃/10 a，0.23 ℃/10 a和0.42 ℃/10 a，春、冬季升温明显。1月平均气温总趋势上升，升温率为0.23 ℃/10 a，20世纪80年代开始7月升温明显。年降水量有减少倾向，春、秋季降水明显减少，其中春季减少率为-14.8 mm/10 a，而夏季降水明显增加，增长率为21.8 mm/10 a，冬季降水小幅度增加。80年代及2001-2009年汛期年均降水较多。春、夏、秋季气温与降水有较好的相关性，而全年及冬季气温与降水相关规律不明显。

关键词: 气温, 降水, 气候变化, 变化趋势, 西安

Abstract: Based on the average annual and monthly temperature and precipitation data observed in Xi’an during the period from 1961 to 2009, in this paper climate change in Xi’an in recent 49 years was analyzed. The conclusions are as follows: annual temperature was increased with an increase rate of 0.3 ℃/10 a; the change of seasonal temperature was different: the seasonal temperature was increased with increase rates of 0.54 ℃/10 a, 0.42 ℃/10 a and 0.23 ℃/10 a in spring, winter and autumn respectively. Monthly temperature in January was also increased with an increase rate of 0.23 ℃/10 a, and that in July was significantly increased since the 1980s. Annual precipitation was in a decrease trend; seasonal precipitation was significantly decreased in spring and autumn, it was decreased with a decrease rate of 14.8 mm/10 a in spring, but it was significantly increased with an increase rate of 21.8 mm/10 a in summer, and it was slightly increased in winter; precipitation in flood season was also increased significantly in the 1980s and during the period from 2001 to 2009. There was a good correlation between seasonal temperature and precipitation in spring, summer and autumn, but the correlations between annual temperature and precipitation and between seasonal temperature and precipitation in winter were not significant.

Key words: air temperature, precipitation, climate change, change trend, Xi’an