Dynamic changes of composite drought indiex in Liaoning Province in recent 50 years.

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Dynamic changes of composite drought indiex in Liaoning Province in recent 50 years.

LIU Xiao-mei¹;LI Jing¹;Lü Zhi-hong²;LIU Ming³;XING Wan-ru³

¹Shenyang Regional Climate Center, Shenyang 110016, China;²Fushun Meteorological Bureau, Fushun 113000, Liaoning, China;³Liaoning Meteorological Information and Technological Support Center, Shenyang 110016, China

Received:2008-08-25 Revised:1900-01-01 Online:2009-05-10 Published:2009-05-10

Abstract

Abstract: By using the daily precipitation and daily mean air temperature data from 37 observation stations in Liaoning Province, the daily composite drought index (CI) in 1958〖KG-*2〗-〖KG-*7〗2007 was calculated. Based on this calculation, the drought process in the Province was diagnosed, and its spatiotemporal variations were analyzed. The results showed that in the Province, drought event occurred everywhere, and its frequency was most great in west part. The drought frequency was greater in May and June in whole Liaoning, and also, greater in autumn in west Liaoning. The drought days both in a year and in the growth season were increasing.

Key words: Soil organic carbon, Plant process, Ecosystem

LIU Xiao-mei¹;LI Jing¹;Lü Zhi-hong²;LIU Ming³;XING Wan-ru³. Dynamic changes of composite drought indiex in Liaoning Province in recent 50 years.[J]. cje.

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Dynamic changes of composite drought indiex in Liaoning Province in recent 50 years.

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