Effect of climate change on reference evapotranspiration and aridity index in arid region of China
文献类型：SCI/SSCI论文
| 作者 | Huo Z. L. ; Dai X. Q. ; Feng S. Y. ; Kang S. Z. ; Huang G. H. |
| 发表日期 | 2013 |
| 关键词 | Aridity index Climate change Meteorological variables Reference evapotranspiration pan evaporation trends yangtze-river basin potential evapotranspiration penman-monteith sensitivity coefficients meteorological variables temporal characteristics india iran |
| 英文摘要 | Temporal variations in reference evapotranspiration (ET0) and aridity index (AI) were comprehensively investigated for 23 meteorological stations during 1955-2008 in the northwest China. The quantitative contributions of the major meteorological variables to the ET0 and AI trends were evaluated and the possible causes were also investigated. The results showed that in the past 50 years annual temperature, humidity and precipitation had significant increasing trends with time, and wind speed and radiation had decreasing trends. ET0 had a significant decreasing trend with an averagely value of about 3 mm per year, and AI had also witnessed a decreasing trend; For ET0, wind speed was the most sensitive meteorological variable, followed by relative humidity, temperature and radiation and for AI, precipitation was the most sensitive meteorological variable. The contribution of wind speed to the decrease of ET0 is more than that of other meteorological variables. The increase of precipitation contributes more than the decrease of ET0 to decrease of AI in past 50 years. This study provides an understanding of the effect of recent climate change on drought in arid northwest China. (c) 2013 Elsevier B.V. All rights reserved. |
| 出处 | Journal of Hydrology |
| 卷 | 492 |
| 页 | 24-34 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0022-1694 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/30498]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Huo Z. L.,Dai X. Q.,Feng S. Y.,et al. Effect of climate change on reference evapotranspiration and aridity index in arid region of China. 2013. |
入库方式： OAI收割
来源：地理科学与资源研究所
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