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[1]LI Jin-hu,WU Rang,ZHAO Jin-zhong.Changes of Drought and Waterlog Disasters over the Last 50 Years in Guide County, Qinghai Province[J].Research of Soil and Water Conservation,2012,19(04):256-259,264.

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Changes of Drought and Waterlog Disasters over the Last 50 Years in Guide County, Qinghai Province

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 19 Number of periods: 2012 04 Page number: 256-259,264 Column: Public date: 2012-08-20

Title:: Changes of Drought and Waterlog Disasters over the Last 50 Years in Guide County, Qinghai Province

Author(s):: LI Jin-hu¹, WU Rang², ZHAO Jin-zhong³; 1. Meteorological Bureau of Qinghai Province, Xi’ning 810001, China;
2. Tongde Meteorological Bureau in Qinghai Province, Tongde, Qinghai 813201, China;
3. Guide Meteorological Bureau of Qinghai Province, Guide, Qinghai 811750, China

Keywords:: abrupt change of climate; drought and waterlog disaster; Guide County

CLC:: P426.616

DOI:: -

Abstract:: The data for this study were collected at the weather station of Guide, Qinghai Province, including average daily temperatures of every day, monthly precipitation, and the daily highest and lowest temperatures from 1961 to 2010. According to these data, trends of atmospheric temperatures, precipitation and the daily highest and lowest temperatures over the last 50 years were analyzed, and the years of abrupt changes were checked. We judged drought or waterlog degrees from concurrent precipitation, so as to compare the years of drought or waterlog disasters and their ratios before and after the abrupt changes. The results showed that drought and waterlog disasters became more frequent over the last 50 years. The results of Markovian analysis indicated that waterlog disasters would be in greater probabilities in 5 years from 2011 to 2015.

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