黄河流域气象干旱及其恢复动态分析
作者:
作者单位:

(河海大学水文水资源学院,江苏 南京 210098 )

作者简介:

杨肖丽(1976—),女,教授,博士,主要从事水文水资源研究。E-mail:yangxl@hhu.edu.cn

通讯作者:

中图分类号:

基金项目:

国家自然科学基金项目(U2243203)


Dynamic analysis of meteorological drought and its recovery in the Yellow River Basin
Author:
Affiliation:

(College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China)

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 文章评论
    摘要:

    基于1961—2022年的黄河流域气象数据,分析其气温和降水量变化趋势和突变点,以标准化降水蒸散指数为干旱指标,研究黄河流域年尺度的气象干旱特征和干旱恢复特征变化。采用游程理论提取干旱事件及干旱恢复特征指标,运用Mann-Kendall趋势检验方法对黄河流域1961—2022年的干旱指标和干旱恢复特征进行分析。结果表明:黄河流域气候复杂,干旱指标时空分布不均;1961—2022年气象干旱在黄河流域下游呈显著增加趋势,在上游和中游的大部分地区呈减少趋势,少部分呈增加趋势;干旱恢复速率在黄河流域下游呈显著增大趋势,在上游和中游的大部分地区呈减小趋势,少部分呈增大趋势;降水量和气温是影响黄河流域气象干旱的重要因素,其中降水量的影响较大。

    Abstract:

    Based on the meteorological data of the Yellow River Basin from 1961 to 2022, the trends and abrupt changes in temperature and precipitation were analyzed. Using the standardized precipitation evapotranspiration index(SPEI) as the drought indicator, the annualscale variations in meteorological drought characteristics and drought recovery features in the Yellow River Basin were studied. The run theory was employed to extract drought characteristic indexes and drought recovery characteristic indexes, while the MannKendall trend test method was applied to analyze the drought index and drought recovery characteristics in the Yellow River Basin from 1961 to 2022. The results indicate that the climate of the Yellow River Basin is complex, with uneven spatiotemporal distribution of drought indexes. From 1961 to 2022, meteorological drought showed a significant increasing trend in the lower reaches of the Yellow River Basin, while in most areas of the upper and middle reaches, meteorological drought exhibited a decreasing trend, with a minority of areas showing an increasing trend. The drought recovery rate demonstrated a significant increasing trend in the lower reaches of the Yellow River Basin, whereas in most areas of the upper and middle reaches, the drought recovery rate displayed a decreasing trend, with a minority of areas showing an increasing trend. Precipitation and temperature are identified as important factors influencing drought conditions in the Yellow River Basin, with precipitation playing a relatively more significant role.

    参考文献
    相似文献
    引证文献
引用本文

杨肖丽,朱敏讷,罗定,等.黄河流域气象干旱及其恢复动态分析[J].水资源保护,2025,41(3):127-133.(YANG Xiaoli, ZHU Minne, LUO Ding, et al. Dynamic analysis of meteorological drought and its recovery in the Yellow River Basin[J]. Water Resources Protection,2025,41(3):127-133.(in Chinese))

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2024-10-16
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2025-06-12
  • 出版日期: