Analysis of Hydrological Drought Evolution Characteristics and Influencing Factors in Xilin River Basin

ZHANG Lu; ZHU Zhongyuan; WANG Huimin; WANG Fei

doi:10.13870/j.cnki.stbcxb.2020.04.027

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Analysis of Hydrological Drought Evolution Characteristics and Influencing Factors in Xilin River Basin

更新时间：2025-03-12

- Analysis of Hydrological Drought Evolution Characteristics and Influencing Factors in Xilin River Basin
- Vol. 34, Issue 4, Pages: 178-184(2020)
- 作者机构：
  
  内蒙古农业大学水利与土木建筑工程学院,呼和浩特,010018
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2020.04.027
  CLC：
- Published：2020
- 稿件说明：
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ZHANG Lu, ZHU Zhongyuan, WANG Huimin, et al. Analysis of Hydrological Drought Evolution Characteristics and Influencing Factors in Xilin River Basin[J]. 2020, 34(4): 178-184.
DOI：

ZHANG Lu, ZHU Zhongyuan, WANG Huimin, et al. Analysis of Hydrological Drought Evolution Characteristics and Influencing Factors in Xilin River Basin[J]. 2020, 34(4): 178-184. DOI： 10.13870/j.cnki.stbcxb.2020.04.027.

摘要

利用1982—2018年锡林浩特气象站和水文站的降水、气温、径流等数据，通过计算气象水文干旱指数，并采用交叉小波分析、累积距平、游程理论等方法探究锡林河流域水文干旱演变特征及主导因素。结果表明：1982—2016年，锡林河流域降水量与潜在蒸散发量呈逐年增加的趋势，而径流深则呈现逐年减小的趋势；锡林河流域上游区域夏季和冬季的旱情等级较高，自2000年以来，甚至出现夏季与冬季连旱的情况，故高温和低温均是可能引发锡林河流域干旱的重要原因；交叉小波分析发现，气象干旱与水文干旱的滞后关系会有所改变，不是所有区域都表现出水文干旱滞后于气象干旱；人类活动和气候变化在1990—1998年、1999—2016年对出现水文干旱的影响程度分别为67.7%，55.6%和32.3%，44.4%，呈逐年减小的趋势。

Abstract

Using precipitation

air temperature

and runoff data from Xilinhot Meteorological Station and Hydrological Station from 1982 to 2018

the meteorological and hydrological drought index was calculated

and cross-wavelet analysis

cumulative anomaly

and run length theory were used to explore the hydrological drought evolution characteristics and leading factors in the Xilin River Basin. The results showed that from 1982 to 2016

the rainfall and potential evapotranspiration in the Xilin River Basin increased year by year

while the runoff depth showed a decreasing trend in each year. Due to the high drought level in upper reaches of Xilin River Basin in summer and winter

and the continuous drought in summer and winter since 2000

the high temperature and low temperature were the important reasons that may cause drought in the Xilin River Basin. Cross wavelet analysis found that the lagging relationship between meteorological drought and hydrological drought will be somewhat change

not all regions show that hydrological drought lags behind meteorological drought. The impact of human activities and climate change on the occurrence of hydrological drought in 1990—1998 and 1999—2016 was 67.7%

55.6% and 32.3%

44.4%

with a decreasing trend year by year.

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