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中国沙漠 ›› 2023, Vol. 43 ›› Issue (4): 263-273.DOI: 10.7522/j.issn.1000-694X.2023.00043

• • 上一篇    

科尔沁沙地19612021年主要气象要素的变化特征

牛亚毅1(), 刘蔚1,3, 董佳蕊4, 连杰2, 王旭洋2,3, 李玉强2,3()   

  1. 1.中国科学院西北生态环境资源研究院,文献情报中心,甘肃 兰州 730000
    2.中国科学院西北生态环境资源研究院,奈曼沙漠化研究站,甘肃 兰州 730000
    3.中国科学院大学,北京 100049
    4.内蒙古自治区奈曼旗气象局,内蒙古 奈曼旗 028300
  • 收稿日期:2022-08-09 修回日期:2023-04-19 出版日期:2023-07-20 发布日期:2023-08-14
  • 通讯作者: 李玉强
  • 作者简介:李玉强(E-mail: liyq@lzb.ac.cn
    牛亚毅(1992—),女,甘肃通渭人,博士后,主要从事生态系统碳通量的研究。E-mail: niuyayi@lzb.ac.cn
  • 基金资助:
    甘肃省青年科技基金项目(23JRRA672);2022年甘肃省博士后资助项目(33988027);国家自然科学基金项目(31971466);国家重点研究发展计划项目(2017YFA0604803)

The variation characteristics of main meteorological factors in Horqin Sandy Land during 1961-2021: A case study of Naiman Banner

Yayi Niu1(), Wei Liu1,3, Jiarui Dong4, Jie Lian2, Xuyang Wang2,3, Yuqing Li2,3()   

  1. 1.Information Center /, Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
    2.Naiman Desertification Research Station, Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
    3.University of Chinese Academy of Sciences,Beijing 100049,China
    4.Naiman Meteorological Bureau of Inner Mongolia,Naiman Banner 028300,Inner Mongolia,China
  • Received:2022-08-09 Revised:2023-04-19 Online:2023-07-20 Published:2023-08-14
  • Contact: Yuqing Li

摘要:

为了分析全球气候变化背景下科尔沁沙地主要气象要素的变化特征,基于逐月站点气象数据,采用趋势分析、Mann-Kendall突变分析和小波分析等研究方法,分析了1961—2021年奈曼旗主要气象要素(气温、降水量和蒸发量)的多尺度时间变化特征。结果表明:在全球气候变化下奈曼旗各主要气象要素变化显著,其中气温以0.21 ℃/10a速率极显著升高,降水以-9.2 mm/10a速率极显著减小,蒸发量以32.50 mm/10a速率不显著增加;从季节变化来看,春季和秋季气温、降水和蒸发量均表现为增加趋势,夏季和冬季温度和蒸发量增加,降水量减少。各气象要素出现突变点的时间不同,其中气温为1971年左右,降水为1978年和1987年,蒸发量为2002、2009、2013年。各气象要素在研究时段内均表现出明显的周期变化,其中气温为3~7、14~23、34~43 a,降水量为3~6、8~11、13~23、43 a,蒸发量为5~7、11~16、27、35 a。

关键词: 气温, 降水量, 蒸发量, 突变点, 周期性

Abstract:

To analyze the variation characteristics of major meteorological factors in Horqin Sandy Land under the background of global climate change. Based on monthly meteorological data, the trend analysis, Mann-Kendall mutation point analysis and wavelet analysis were used to analyze the multi-scale temporal variation characteristics of main meteorological factors (temperature, precipitation and evaporation) in Naiman Banner from 1961 to 2021. The results showed that: under the global climate change, the major meteorological factors in the study area changed significantly, and the temperature increased significantly at a rate of 0.21 ℃/10a, the precipitation decreased significantly at a rate of -9.2 mm/10a, and the evaporation did not increase significantly at a rate of 32.50 mm/10a. From the seasonal variation, in spring and autumn, the temperature, precipitation and evaporation showed an increasing trend, while in summer and winter, temperature and evaporation increased and precipitation decreased. The time of mutation point of each meteorological factor was different, among which the temperature was about 1971, the precipitation was 1978 and 1987, and the evaporation were 2002, 2009 and 2013. All meteorological factors showed obvious periodic changes during the study period, including temperature of 3-7 a, 14-23 a and 34-43 a, precipitation of 3-6 a, 8-11 a, 13-23 a and 43 a, and evaporation of 5-7 a, 11-16 a, 27 a and 35 a.

Key words: temperature, precipitation, evaporation, mutation point, periodicity

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