[1]金华星,胡姗姗,龚年祖,等.滁州市冬小麦生育期作物需水量和降水变化特征[J].水土保持研究,2017,24(02):178-183.
　JIN Huaxing,HU Shanshan,GONG Nianzu,et al.Variation of Water Requirement and Precipitation in Wheat Growth Stages from 1961 to 2013[J].Research of Soil and Water Conservation,2017,24(02):178-183.
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滁州市冬小麦生育期作物需水量和降水变化特征

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 24 期数: 2017年02期 页码: 178-183 栏目: 出版日期: 2017-04-28
Title:
Variation of Water Requirement and Precipitation in Wheat Growth Stages from 1961 to 2013
作者:
金华星, 胡姗姗, 龚年祖, 张鑫童
滁州市气象局, 安徽 滁州 239000
Author(s):
JIN Huaxing, HU Shanshan, GONG Nianzu, ZHANG Xintong
Meteorological Bureau of Chuzhou City, Chuzhou, Anhui 239000, China
关键词:
滁州市; 作物需水量; 灌溉蓄水量; 冬小麦生育期; 多尺度变化
Keywords:
Chouzhou City; crop water requirement; irrigation water requirement; wheat growth stages; multiscale variation
分类号:
S512.1+1
摘要:
基于1961—2013年滁州市气象数据，运用集合经验模态分解和交叉小波分析，探究了冬小麦生育期需水量和灌溉需水量的变化特征。结果表明：1961—2013年滁州市冬小麦生育期需水量和灌溉需水量均呈增加趋势（增势分别为：2.80，1.48 mm/a）；年代变化上，冬小麦生育期需水量逐渐增大，灌溉需水量大致呈现先减少后增加的变化特征。冬小麦生育期作物需水量和灌溉需水量均呈现明显的多尺度变化特征，表现为多尺度的周期变化特征和趋势变化特征。作物需水量存在2.65，6.63，13.25，26.50 a的周期，灌溉需水量存在3.11，5.89，10.60，26.5 a的周期。研究时段，作物需水量和灌溉需水量与潜在蒸散量呈同相位分布，与降水量呈显著的反相位。
Abstract:
Based on the data from Meteorological Bureau of Chuzhou City and using ensemble empirical mode decomposition and cross wavelet analysis, the crop and irrigation water requirements during the wheat growth stages were analyzed. The results showed that the crop and irrigation water requirements experienced increasing trend with the rate of 2.80 mm/year and 1.48 mm/year from 1961 to 2013, respectively. For decadal change, the crop water requirement presented gradually increasing trend, while the irrigation water requirement exhibited decrease first and then increase. The crop water requirement has the periodicities of 2.65 years, 6.63 years, 13.25 years and 26.50 years, the irrigation water requirement has the periodicities of 3.11 years, 5.89 years, 10.60 years and 26.5 years. The crop and irrigation water requirements have the in-phase relationship with evapotranspiration and significant anti-phase relationship with precipitation.

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备注/Memo

收稿日期:2016-05-04;改回日期:2016-05-11。
基金项目:安徽省气象科技发展基金“滁州市短期温度降水多模式集成预报”（KM201404）
作者简介:金华星(1973-),男,安徽凤阳人,工程师,本科,主要研究方向:综合气象观测业务、气象装备保障和人工影响天气等工作。E-mail:jhx210@aliyun.com

更新日期/Last Update: 1900-01-01