太阳成8722(中国)有限公司-GREEN NO.1

标题：Impact of meteorological drought on streamflow drought in Jinghe River Basin of China作者：Zhao Lin; Lyu Aifeng; Wu Jianjun; Hayes, Michael; Tang Zhenghong; HeBin; Liu Jinghui; Liu Ming

来源出版物：CHINESE GEOGRAPHICAL SCIENCE 卷：24 期：6 页：694-705 DOI：10.1007/s11769-014-0726-x 出版年：DEC 2014

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.

入藏号：WOS:000345365400006

文献类型：Article

语种：English

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

扩展关键词：STANDARDIZED PRECIPITATION INDEX; MIDWESTERN UNITED-STATES; MEDITERRANEAN BASIN; CLIMATE; YIELD

通讯作者地址：Wu Jianjun; Beijing Normal Univ, Acad Disaster Reduct & Emergency Management, Beijing 100875, Peoples R China.

电子邮件地址：jjwu@bnu.edu.cn

地址：

[Zhao Lin] Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430079, Peoples R China.

[Lyu Aifeng] Chinese Acad Sci, Inst Geog Sci & Nat *Resources* Res, Beijing 100101, Peoples R China.

[Wu Jianjun; Liu Jinghui; Liu Ming] Beijing Normal Univ, Acad Disaster Reduct & Emergency Management, Beijing 100875, Peoples R China.

[Hayes, Michael] Univ Nebraska Lincoln, Sch Nat Resources, Natl Drought Mitigat Ctr, Lincoln, NE 68588 USA.

[Tang Zhenghong] Univ Nebraska Lincoln, Coll Architecture, Lincoln, NE 68588 USA.

[He Bin] Beijing Normal Univ, Coll Global Change & Earth Syst, Beijing 100875, Peoples R China.

研究方向：Environmental Sciences & Ecology

ISSN：1002-0063

eISSN:1993-064X