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冰川冻土 ›› 2018, Vol. 40 ›› Issue (4): 666-675.doi: 10.7522/j.issn.1000-0240.2018.0072

• 冰冻圈与全球变化 • 上一篇    下一篇

1961-2014年黄河源区蒸发皿蒸发量变化的多尺度特征及突变分析

石明星1,2,3, 蓝永超1, 沈永平1, 田辉1, 王欣1, 喇承芳4, 马虎迎5   

  1. 1. 中国科学院 西北生态环境资源研究院, 甘肃 兰州 730000;
    2. 兰州交通大学, 甘肃 兰州 730070;
    3. 中国科学院大学, 北京 100049;
    4. 黄河水利委员会 上游水文水资源局, 甘肃 兰州 730000;
    5. 兰州石化职业技术学院, 甘肃 兰州 730060
  • 收稿日期:2017-09-15 修回日期:2018-02-16 出版日期:2018-08-25 发布日期:2018-10-08
  • 通讯作者: 蓝永超,E-mail:lyc@lzb.ac.cn. E-mail:lyc@lzb.ac.cn
  • 作者简介:石明星(1983-),男,甘肃兰州人,讲师,2010年在兰州交通大学获硕士学位,现为中国科学院西北生态环境资源研究院在职博士研究生,从事气候变化、水文水资源研究.E-mail:shimx@mail.lzjtu.cn
  • 基金资助:
    国家自然科学基金重大研究计划项目(91225302);中国科学院重点部署项目(Y322G73001);国家自然科学基金项目(41530529)资助

Analyses of multiple time scale variation characteristics of pan evaporation and mutation in the source regions of the Yellow River from 1961 to 2014

SHI Mingxing1,2,3, LAN Yongchao1, SHEN Yongping1, TIAN Hui1, WANG Xin1, LA Chengfang4, MA Huying5   

  1. 1. Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China;
    2. Lanzhou Jiaotong University, Lanzhou 730070, China;
    3. University of Chinese Academy of Sciences, Beijing 100049, China;
    4. Upstream Hydrology and Water Resources Bureau, Yellow River Conservancy Committee, Lanzhou 730000, China;
    5. Lanzhou Petrochemical College of Vocational Technology, Lanzhou 730060, China
  • Received:2017-09-15 Revised:2018-02-16 Online:2018-08-25 Published:2018-10-08

摘要: 基于黄河源区相关气象站1961-2014年蒸发皿蒸发数据,利用线性倾向分析、滑动平均法、Mann-Kendall法等方法,对黄河源区各分区及整个源区蒸发皿蒸发量变化进行多尺度变化特征及突变分析。结果表明:近50余年来,空间上,黄河源区年平均蒸发量经历了从上游到下游先减小后增加的过程,季节蒸发量变化稍有差异;时间上,黄河源区季节及年平均蒸发量总体呈上升趋势,各分区略有差异,各分区及整个源区蒸发量年代际变化具有较好的一致性。各分区及整个黄河源区年平均及季节平均蒸发量突变点基本一致,均出现在2000年前后,且年与季节平均蒸发量在突变前均值大部分小于突变后的均值。位于源区下游的玛曲-兴海平均蒸发量发生突变的时间较早,且跳跃幅度较小,位于源区中游的达日-玛曲平均蒸发量发生突变的时间较晚,且跳跃幅度较大。对各气象因子的相关分析表明,影响源区年蒸发量变化的主要因子为平均温度。

关键词: 黄河源区, 蒸发皿蒸发量, 突变, 趋势, 跳跃幅度

Abstract: Based on the pan evaporation data from meteorological stations in the source regions of the Yellow River from 1961 through 2014, the multiple time scale variation and mutation characteristics of pan evaporation in each sub-region and the whole source regions of the river were analyzed with some trend analysis methods such as linear trend analysis, moving average analysis, Mann-Kendall analysis and so on. The result showed that the annual average pan evaporation in the source regions had experienced a process from decreasing to increasing from the upstream to the downstream spatially and the variation of seasonal average pan evaporation had been slightly different. On the whole, the annual and seasonal average pan evaporations had presented a rising trend temporally in the source regions and had been slight different among sub-regions. Decadal change of the pan evaporation in each sub-region and the whole source regions had been basically the same. Mutation of the annual and seasonal average pan evaporations occurred in about 2000 in the sub-regions and the whole source regions. The mutation time of the average pan evaporation in the area between Maqu Station and Xinghai Station located in the downstream of the source regions was earlier with a smaller jump extent. The mutation time of the average pan evaporation in the area between Dari Station and Maqu Station located in the midstream of the source regions was later with a larger jump extent. Correlation analyses between pan evaporation and meteorological factors showed that the mean temperature was the main factor controlling the variation of annual average pan evaporation in the source regions of the Yellow River.

Key words: source regions of the Yellow River, pan evaporation, mutation, trend, jump range

中图分类号: 

  • P333.1