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[1]WANG Fangfang,WEI Yong.Variability of Drought During Winter Wheat Growth in Shihezi Reclamation Area[J].Research of Soil and Water Conservation,2016,23(06):238-241,247.

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Variability of Drought During Winter Wheat Growth in Shihezi Reclamation Area

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 23 Number of periods: 2016 06 Page number: 238-241,247 Column: Public date: 2016-12-28

Title:: Variability of Drought During Winter Wheat Growth in Shihezi Reclamation Area

Author(s):: WANG Fangfang¹, WEI Yong²; 1. Urumqi Meteorological Bureau, Urumqi 830002, China;
2. Shihezi Meteorological Bureau, Shihezi, Xinjiang 832000, China

Keywords:: Shihezi reclamation area; growth duration; winter wheat; drought variation

CLC:: S423

DOI:: -

Abstract:: Based on daily meteorological data from four stations and relative humid index, the temporal variation of drought frequency was analyzed in winter wheat growth during the period from 1961 to 2012. The results showed that drought happened frequently and presented decreasing trend in winter wheat growth in the past 52 years, which suggested that severity of drought had been alleviated in some extent, among which drought decreased significantly in Shihezi and Wulanwusu with the rate of -5.91 days/decade and -2.72 days/decade. Drought frequency presented different days at different growth stage of winter wheat, and more serious drought occurred during the early and later stage of winter wheat growth, but less drought frequency was observed at medium stage. The increasing trend of precipitation and the decreasing trend of wind speed and sunshine duration contributed most to the alleviating trend of drought.

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