| 汾渭平原干旱事件分析与丰枯异步性研究 |
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| 作者姓名： | 栾清华 付潇然 刘家宏 邵薇薇 白亮亮 徐小钰 |
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| 作者单位： | 1. 河北工程大学，河北 邯郸 056021; 中国水利水电科学研究院，北京 100038;2. 中国水利水电科学研究院,北京,100038;3. 西安理工大学,西安,710048 |
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| 基金项目： | 中国工程院重大咨询项目( 20122ZD213) ; 国家自然基金面上项目( 51279207) |
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| 摘 要： | 近年来我国旱涝事件呈现出广发和频发趋势,严重破坏了水资源供需平衡,极大地制约着国民经济的快速发展。依据汾渭平原水文、气象和历史旱灾资料,划分了干旱事件等级,绘制了干旱事件图谱,分析发现汾渭平原近年来发生干旱事件的频次越来越密集。利用汾河平原和渭河平原长序列年降水资料(1951年-2012年),基于SPI法计算结果,分析了两平原降水的丰枯异步性和旱涝事件的重现期,印证了汾渭平原可以进行旱涝"空间集合应对"的条件,为进一步优化晋陕两省水资源配置提供了有力的技术支撑。
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| 关 键 词： | 干旱事件 干旱灾害等级图谱 丰枯异步性 SPI 共轭年 汾渭平原 南水北调西线工程 |
The study of drought events and drought2waterlogging asynchronismin Fen2wei plain |
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| Authors: | LUAN Qinghu FU Xiaor an LIU Jiahong SH AO Weiw ei BAI Liangliang XU Xiaoy u |
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| Institution: | ( 1. H ebei Univ er sity of Eng ineer ing , H andan 056021, China; 2. China I ns titute of Water Resour ces and H y dr op ow er
Res ear ch, Beij ing 100038, China; 3. X ican Univ er sity of Technolo gy , X ican 710048, China, ) |
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| Abstract: | The droug ht and water lo gg ing in China have been show ing a wide and fr equent trend, dest roy ing the supply and de2
mand balance o f w ater resources ser iously , and r estr icting the develo pment of the nat ional economy gr eatly in recent years.
Firstly, based o n the hydro log ical, meteor olog ical and dr ought disast er data in Fen2wei plain, dr ought events g rades ar e desig ned
and the relat ed mapping s are drew ; the results show that t he dro ug ht events happened f requent ly in recent year s. Secondly, the
dr ought2w aterlog ging asynchr onism and the hydro log ic r etur n per io d in Fen2wei plain using t he pr ecipitatio n data( 195122012)
based on SPI, which reflects the conditio n space set compr ehensive responses at the same time in Fen2wei pla in. The results
could supply t he r eference to water resources optimization in Shanx i and Shaanx i pro vince. |
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| Keywords: | dr ought events dro ug ht disaster gr ades mapping dro ug ht2water lo gg ing asy nchro nism SPI conjugat e years Fen2wei
plain the w est route of So uth to No rth Water Div ersio n Pro ject |
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