[1]王芳芳,魏勇.石河子垦区冬小麦生育期干旱变化特征[J].水土保持研究,2016,23(06):238-241,247.
　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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石河子垦区冬小麦生育期干旱变化特征

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 23 期数: 2016年06期 页码: 238-241,247 栏目: 出版日期: 2016-12-28
Title:
Variability of Drought During Winter Wheat Growth in Shihezi Reclamation Area
作者:
王芳芳1, 魏勇2
1. 新疆维吾尔自治区气象学会, 乌鲁木齐 830002;
2. 石河子气象局, 新疆 石河子 832000
Author(s):
WANG Fangfang1, WEI Yong2
1. Urumqi Meteorological Bureau, Urumqi 830002, China;
2. Shihezi Meteorological Bureau, Shihezi, Xinjiang 832000, China
关键词:
石河子垦区; 生育期; 冬小麦; 干旱变化
Keywords:
Shihezi reclamation area; growth duration; winter wheat; drought variation
分类号:
S423
摘要:
基于石河子垦区4个气象站的逐日数据，运用相对湿润指数探究了过去52 a冬小麦作物生育期干旱变化特征，主要结论如下：（1）过去52 a，石河子垦区冬小麦生育期干旱频发，干旱频次达200 d以上。干旱频次总体呈减少趋势，旱情总体有所减轻，其中石河子和乌兰乌苏干旱频次减少趋势最明显，减势分别为-5.91 d/10 a和-2.72 d/10 a。（2）冬小麦不同生育期内干旱频次有所差异，在生育期初期和后期干旱发生较少，在越冬—返青期干旱发生较多；在冬小麦的整个生育期和各生育期，特旱发生频次最高。（3）降水的增加、风速和日照时数的减少对石河子垦区干旱有一定的缓解作用。
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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备注/Memo

收稿日期:2015-12-02;改回日期:2015-12-16。
基金项目:新疆气象局气象科技研究项目（MS201524）
作者简介:王芳芳(1980-),女,新疆奎屯人,硕士,工程师,研究方向为气象与遥感。E-mail:wywff5167@qq.com

更新日期/Last Update: 1900-01-01