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中国沙漠 ›› 2014, Vol. 34 ›› Issue (4): 1125-1132.DOI: 10.7522/j.issn.1000-694X.2014.00101

• 天气与气候 • 上一篇    下一篇

1957-2012年讨赖河流域潜在蒸发量变化

高妍1, 冯起1,2, 李宗省2, 成爱芳2, 苏玉波1, 张海娜2, 刘铮瑶1, 刘科1, 马倩倩1   

  1. 1. 陕西师范大学 旅游与环境学院, 陕西 西安 710062;
    2. 中国科学院寒区旱区环境与工程研究所, 甘肃 兰州 730000
  • 收稿日期:2014-04-10 修回日期:2014-06-19 出版日期:2014-07-20 发布日期:2014-07-20
  • 作者简介:高妍(1990-),女,陕西韩城人,硕士研究生,研究方向为生态环境演变与气候变化。Email:18792406581@163.com
  • 基金资助:
    陕西省“百人计划”项目(2009-03);陕西师范大学中央高校基本科研业务专项资金项目(GK201101002);中国科学院重点部署项目(KZZD-EW-04-05);中国博士后科学基金项目(2012M510219,2013T60899)资助

Potential Evaporation in the Taolaihe River Basin during 1957-2012

Gao Yan1, Feng Qi1,2, Li Zongxing2, Cheng Aifang2, Su Yubo1, Zhang Haina2, Liu Zhengyao1, Liu Ke1, Ma Qianqian1   

  1. 1. College of Tourism and Environment, Shaanxi Normal University, Xi'an 710062, China;
    2. Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China
  • Received:2014-04-10 Revised:2014-06-19 Online:2014-07-20 Published:2014-07-20
  • Contact: 冯起(Email:qifeng90@hotmail.com)

摘要: 在气象观测数据基础上,运用数理统计方法对讨赖河流域1957-2012年潜在蒸发量变化的研究表明:(1)讨赖河流域潜在蒸发量的季节变化不尽相同,秋、冬季潜在蒸发量20世纪60、70年代偏少,80、90年代及2000年后偏多;春、夏季潜在蒸发量60、80年代偏高、90年代及2000年以后偏低,年和湿季变化趋势相似,均表现为60-80年代偏低,90年代及2000年以后偏高。(2)就年际变化而言,年和湿季潜在蒸发量的变化趋势较为相似,季节潜在蒸发量均表现为增加趋势,夏季增幅最大,秋季最小。(3)各季节和年序列均存在10~15年的短周期变化及26~28年的长周期变化。(4)流域春、夏、秋、冬以及年和湿季潜在蒸发量分别在1995、2000、1984、1980、1997年和1992年突变增加,并通过了0.01的显著性水平检验;干季潜在蒸发量经历了两次突变增加,分别发生在1980年和1995年。

关键词: 讨赖河, 潜在蒸发量, 突变

Abstract: In this paper, using meteorological data of 2 stations during 1957-2012 in the Taolaihe River Basin, we analyzed the inter-decadal and inter-annual change of potential evaporation by linear trends and the 5-year trend of sliding, tested climate mutations on Mann-Kedall method, studied the cycle to climate change in wavelet analysis, the conclusions are following: (1) autumn and winter potential evaporation are relatively lower in 1960s and 1970s, but abundant in 1980s, 1990s and after 2000, while potential evaporation in spring and summer are also abundant during 1960s and 1980s, and lower in 1990s and after 2000. In addition, variation for annual and wet season potential evaporation are relatively lower in 1960s, 1970s and 1980s, but abundant in 1990s and after 2000; (2) variation in annual and wet season potential evaporation tended to increase, which each season potential evaporation also has an obvious increase trend, and the largest increase occurred in summer, autumn followed; (3) seasonal and annual potential evaporation variation, there are about 10-years, 15-years and above 26-28-years of cycle during 1957-2012; (4) mutation increase of the potential evaporation happened in the years of 1995, 2000, 1984, 1980, 1997, 1992 for spring, summer, autumn, winter, annual and wet seasons, and whats more, only the dry season potential evaporation experienced two mutation increase, respectively, in 1980 and 1995.

Key words: Taolaihe River Basin, potential evaporation change, mutation

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