中国沙漠 ›› 2020, Vol. 40 ›› Issue (4): 163-170.DOI: 10.7522/j.issn.1000-694X.2020.00047

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王炳尧1(), 刘星辰2, 刘立超1   

  1. 1.中国科学院西北生态环境资源研究院 沙坡头沙漠研究试验站,甘肃 兰州 730000
    2.海南大学 生态与环境学院,海南 海口 570228
  • 收稿日期:2020-01-03 修回日期:2020-06-14 出版日期:2020-08-20 发布日期:2020-09-01
  • 作者简介:王炳尧(1994—),男,甘肃酒泉人,助理工程师,主要从事生态学研究。E-mail:
  • 基金资助:

Characteristics of precipitation in the surrounding area of Tengger Desert in 1957-2017

Bingyao Wang1(), Xingchen Liu2, Lichao Liu1   

  1. 1.Shapotou Desert Research and Experiment Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
    2.College of Ecology and Environment,Hainan University,Haikou 570228,China
  • Received:2020-01-03 Revised:2020-06-14 Online:2020-08-20 Published:2020-09-01


基于腾格里沙漠地区1957—2017年的气象观测资料,对降水量进行了时间变化分析、突变分析与周期性变化分析。结果表明:腾格里沙漠地区60 a平均降水量为146.5 mm,总体降水呈不显著(P>0.05)增加趋势,增速约为3.37 mm/10a;降水量空间分布总体南高北低、东高西低,季节分配极为不均,具有明显的干湿季节划分,夏季与秋季降水总量约占全年降水的80.5%。各季节降水量呈不显著(P>0.05)增加趋势。降水在20世纪60—70、80—90年代集中发生了多次突变,但突变均不显著(P>0.05),而季节降水在20世纪90年代后波动明显增大,并发生多次不显著(P>0.05)突变;60 a降水量总体存在14 a左右的主要周期震荡规律,其次为3 a左右的高频震荡周期和30 a左右的低频震荡周期。

关键词: 腾格里沙漠, 降水, 突变分析, Morlet小波分析


Based on the observation data of Tengger desert from 1957 to 2017, the temporal change analysis, catastrophe analysis and periodic change analysis of the 60 year time series precipitation in the whole study area are carried out. The results show the average precipitation in Tengger desert area was 146.5 mm from 1957 to 2017, and the overall precipitation showed no significant (P>0.05) increase trend, with a growth rate of about 3.37 mm/10a; The seasonal distribution of precipitation is extremely uneven, with a clear division of dry and wet seasons. The total precipitation in summer and autumn accounts for about 80.5% of the annual precipitation The precipitation from 1960s to 1970s and 1980s to 1990s has occurred many abrupt changes(non-significant(P>0.05)), while the seasonal precipitation fluctuates obviously after 1990s. The spatial distribution of precipitation in Tengger desert area for 60 years is generally "high in the South and low in the north, high in the East and low in the west"; the precipitation around Tengger desert from 1957 to 2017 generally has the main periodic rule of about 14 years, followed by the high-frequency cycle of about 3 years and the low-frequency cycle of about 30 years.

Key words: Tengger Desert, precipitation, mutation analysis, Morlet wavelet analysis