中国地理科学 ›› 2014, Vol. 0 ›› Issue (6): 694-705.doi: 10.1007/s11769-014-0726-x

• 论文 • 上一篇    下一篇

Impact of Meteorological Drought on Streamflow Drought in Jinghe River Basin of China

ZHAO Lin1, LYU Aifeng2, WU Jianjun3, Michael HAYES4, TANG Zhenghong5, HE Bin6, LIU Jinghui3, LIU Ming3   

  1. 1. School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China;
    2. Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;
    3. Academy of Disaster Reduction and Emergency Management, Beijing Normal University, Beijing 100875, China;
    4. National Drought Mitigation Center, School of Natural resources, University of Nebraska-Lincoln, Lincoln 68588, USA;
    5. College of Architecture, University of Nebraska-Lincoln, Lincoln 68588, USA;
    6. College of Global Change and Earth System, Beijing Normal University, Beijing 100875, China
  • 收稿日期:2014-02-18 修回日期:2014-06-24 出版日期:2014-09-27 发布日期:2014-11-10
  • 通讯作者: WU Jianjun. E-mail: jjwu@bnu.edu.cn E-mail:jjwu@bnu.edu.cn
  • 基金资助:

    Under the auspices of National Natural Science Foundation of China (No. 41171403, 41301586), China Postdoctoral Science Foundation (No. 2013M540599, 2014T70731), Program for New Century Excellent Talents in University (No. NCET-08-0057)

Impact of Meteorological Drought on Streamflow Drought in Jinghe River Basin of China

ZHAO Lin1, LYU Aifeng2, WU Jianjun3, Michael HAYES4, TANG Zhenghong5, HE Bin6, LIU Jinghui3, LIU Ming3   

  1. 1. School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China;
    2. Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;
    3. Academy of Disaster Reduction and Emergency Management, Beijing Normal University, Beijing 100875, China;
    4. National Drought Mitigation Center, School of Natural resources, University of Nebraska-Lincoln, Lincoln 68588, USA;
    5. College of Architecture, University of Nebraska-Lincoln, Lincoln 68588, USA;
    6. College of Global Change and Earth System, Beijing Normal University, Beijing 100875, China
  • Received:2014-02-18 Revised:2014-06-24 Online:2014-09-27 Published:2014-11-10
  • Contact: WU Jianjun. E-mail: jjwu@bnu.edu.cn E-mail:jjwu@bnu.edu.cn
  • Supported by:

    Under the auspices of National Natural Science Foundation of China (No. 41171403, 41301586), China Postdoctoral Science Foundation (No. 2013M540599, 2014T70731), Program for New Century Excellent Talents in University (No. NCET-08-0057)

摘要:

Under global climate change, drought has become one of the most serious natural hazards, affecting the ecological environment and human life. Drought can be categorized as meteorological, agricultural, hydrological or socio-economic drought. Among the different categories of drought, hydrological drought, especially streamflow drought, has been given more attention by local governments, researchers and the public in recent years. Identifying the occurrence of streamflow drought and issuing early warning can provide timely information for effective water resources management. In this study, streamflow drought is detected by using the Standardized Runoff Index, whereas meteorological drought is detected by the Standardized Precipitation Index. Comparative analyses of frequency, magnitude, onset and duration are conducted to identify the impact of meteorological drought on streamflow drought. This study focuses on the Jinghe River Basin in Northwest China, mainly providing the following findings. 1) Eleven meteorological droughts and six streamflow droughts were indicated during 1970 and 1990 after pooling using Inter-event time and volume Criterion method. 2) Streamflow drought in the Jinghe River Basin lagged meteorological drought for about 127 days. 3) The frequency of streamflow drought in Jinghe River Basin was less than meteorological drought. However, the average duration of streamflow drought is longer. 4) The magnitude of streamflow drought is greater than meteorological drought. These results not only play an important theoretical role in understanding relationships between different drought categories, but also have practical implications for streamflow drought mitigation and regional water resources management.

关键词: streamflow drought, meteorological drought, Standardized Precipitation Index (SPI), Standardized Runoff Index (SRI), time lag, Jinghe River Basin

Abstract:

Under global climate change, drought has become one of the most serious natural hazards, affecting the ecological environment and human life. Drought can be categorized as meteorological, agricultural, hydrological or socio-economic drought. Among the different categories of drought, hydrological drought, especially streamflow drought, has been given more attention by local governments, researchers and the public in recent years. Identifying the occurrence of streamflow drought and issuing early warning can provide timely information for effective water resources management. In this study, streamflow drought is detected by using the Standardized Runoff Index, whereas meteorological drought is detected by the Standardized Precipitation Index. Comparative analyses of frequency, magnitude, onset and duration are conducted to identify the impact of meteorological drought on streamflow drought. This study focuses on the Jinghe River Basin in Northwest China, mainly providing the following findings. 1) Eleven meteorological droughts and six streamflow droughts were indicated during 1970 and 1990 after pooling using Inter-event time and volume Criterion method. 2) Streamflow drought in the Jinghe River Basin lagged meteorological drought for about 127 days. 3) The frequency of streamflow drought in Jinghe River Basin was less than meteorological drought. However, the average duration of streamflow drought is longer. 4) The magnitude of streamflow drought is greater than meteorological drought. These results not only play an important theoretical role in understanding relationships between different drought categories, but also have practical implications for streamflow drought mitigation and regional water resources management.

Key words: streamflow drought, meteorological drought, Standardized Precipitation Index (SPI), Standardized Runoff Index (SRI), time lag, Jinghe River Basin