Variation of drought over northern China during 1950–2000

被引：12

作者：

Wang Zhiwei

Zhai Panmao

Zhang Hongtao

机构：

[1] Shanxi Agricultural Meteorology Center,

[2] National Climate Center,undefined

来源：

Journal of Geographical Sciences | 2003年 / 13卷 / 4期

关键词：

northern China; drought coverage; trend;

D O I：

10.1007/BF02837887

中图分类号：

学科分类号：

摘要：

Based on China’s monthly precipitation data of 629 stations during 1950–2000, we calculated Z indices and separated them into seven Dryness and Wetness grades. Further, a drought area index was proposed to study changes in drought severity in northern China. The results revealed that the different severity of droughts all showed expanding trends in northern China’s main agricultural area. Moreover, the area coverage of droughts in different seasons and different regions displayed different trends.

引用

页码：480 / 487

页数：7

共 13 条

[1]

Qingxiang Li(2002)Drought trend in North China in recent half century Journal of Natural Disasters 11 50-56

[2]

Xiaoning Liu(2001)Trend of surface humid index in the arid area of northern China Acta Meteorologica Sinica 59 737-746

[3]

Xiaoquan Li(2000)A diagnostic analysis of serious flood/drought during summer season in the North China Plain Chinese Journal of Atmospheric Sciences 24 393-402

[4]

Zhuguo Ma(2001)An evaluation of the standardized precipitation index, the China-Z index and the statistical Z-Score International Journal of Climatology 21 745-758

[5]

Congbin Fu(1999)Detection of trends in China’s precipitation extremes Acta Meteorologica Sinica 57 208-216

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