Spatio-temporal variation of hydrological drought under climate change during the period 1960-2013 in the Hexi Corridor, China
文献类型：期刊论文
| 作者 | Gao Liming1,2,3; Zhang Yaonan1,2 |
| 刊名 | JOURNAL OF ARID LAND
 |
| 出版日期 | 2016-04-01 |
| 卷号 | 8期号:2页码:157-171 |
| 关键词 | Hexi Corridor streamflow drought index standardized precipitation index westerly index glacier runoff temperature |
| ISSN号 | 1674-6767 |
| DOI | 10.1007/s40333-015-0022-3 |
| 通讯作者 | Zhang Yaonan(yaonan@lzb.ac.cn) |
| 英文摘要 | In recent years, climate change has been aggravated in many regions of the world. The Hexi Corridor is located in the semiarid climate zone of Northwest China, which is particularly affected by climate change. Climate change has led to the spatial and temporal variations of temperature and precipitation, which may result in hydrological drought and water shortage. Thus, it is necessary to explore and assess the drought characteristics of river systems in this area. The patterns of hydrological drought in the Hexi Corridor were identified using the streamflow drought index (SDI) and standardized precipitation index at 12-month timescale (SPI12) from 1960 to 2013. The evolution of drought was obtained by the Mann-Kendall test and wavelet transform method. The results showed that both the mean annual SDI and SPI12 series in the Hexi Corridor exhibited an increasing trend during the study period. According to the results of wavelet analysis, we divided the study period into two segments, i.e. before and after 1990. Before 1990, the occurrence of droughts showing decreased SDI and SPI12 was concentrated in the northern part of the corridor and shifted to the eastern part of the corridor after 1990. The probability of drought after 1990 in Shule River basin decreased while increased in Shiyang River basin. The wavelet analysis results showed that Shiyang River basin will be the first area to go through the next drought period. Additionally, the relationships between drought pattern and climate indices were analyzed. The enhanced westerly winds and increased precipitation and glacier runoff were the main reasons of wet trend in the Hexi Corridor. However, the uneven spatial variations of precipitation, temperature and glacier runoff led to the difference of hydrological drought variations between the Shule, Heihe and Shiyang River basins. |
| 收录类别 | SCI |
| WOS关键词 | STANDARDIZED PRECIPITATION INDEX ; TARIM RIVER-BASIN ; WATER-RESOURCES ; NORTHWEST CHINA ; STREAMFLOW DROUGHT ; WAVELET ANALYSIS ; VARIABILITY ; RUNOFF ; REGION ; ENVIRONMENT |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000373138000001 |
| 出版者 | SPRINGER HEIDELBERG |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557267 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Zhang Yaonan |
| 作者单位 | 1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.Gansu Data Engn & Technol Res Ctr Resources & Env, Lanzhou 730000, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao Liming,Zhang Yaonan. Spatio-temporal variation of hydrological drought under climate change during the period 1960-2013 in the Hexi Corridor, China[J]. JOURNAL OF ARID LAND,2016,8(2):157-171. |
| APA | Gao Liming,&Zhang Yaonan.(2016).Spatio-temporal variation of hydrological drought under climate change during the period 1960-2013 in the Hexi Corridor, China.JOURNAL OF ARID LAND,8(2),157-171. |
| MLA | Gao Liming,et al."Spatio-temporal variation of hydrological drought under climate change during the period 1960-2013 in the Hexi Corridor, China".JOURNAL OF ARID LAND 8.2(2016):157-171. |
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来源：寒区旱区环境与工程研究所
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