| 河南省冬小麦灌溉需水量及年型特征 |
| 点此下载全文 |
| 引用本文：马志红；许蓬蓬；朱自玺；李树岩；师丽魁；.河南省冬小麦灌溉需水量及年型特征[J].气象与环境科学,2009,32(4):60-64..Irrigation Water Requirement for Winter Wheat and Its Year Pattern Characteristics in Henan Province[J].Meteorological and Environmental Sciences,2009,32(4):60-64. |
| 摘要点击次数: 97 |
| 全文下载次数: 477 |
| 作者姓名：马志红；许蓬蓬；朱自玺；李树岩；师丽魁； |
| 作者单位：河南省气象科学研究所; 中国气象局农业气象保障与应用技术重点开放实验室; |
| DOI： |
| 基金项目: |
|
| 中文摘要:本文以麦田水分平衡为基础,系统分析了冬小麦需水量、生育期降水量和底墒水储藏量3个分量的变化及其对冬小麦灌溉需水量的影响。不同气候年型冬小麦生育期降水量和前一年夏季降水量对冬小麦灌溉需水量有很大的影响。分析结果表明,河南省冬小麦灌溉需水量等值线基本上呈纬向分布,自南向北逐渐增大。正常年零值线大体位于卢氏、嵩县、许昌、鄢陵、柘城至永城一线。在此线以北必须进行灌溉,其灌溉量愈向北愈大,从50-100 mm到100-200 mm;零值线以南,不需要灌溉。丰水年零值线大约向北移动0.5~0.8个纬距,全省灌溉面积和灌溉量明显减小,零值线以北灌溉量约为50-150 mm;歉水年零值线南移,与正常年相比,大约向南移动1.0~1.5个纬距,灌溉面积和灌溉量明显增大,自零值线向北,灌溉量分别为50-100、100-200和200 mm以上。 |
| 中文关键词:冬小麦 灌溉量 需水量 气候年型 |
| |
| Irrigation Water Requirement for Winter Wheat and Its Year Pattern Characteristics in Henan Province |
| Authors:Ma Zhihong Xu Pengpeng; Zhu Zixi; Li Shuyan1; Shi Likui1; |
| Affiliations:1.Henan Institute of Meteorological Sciences; Zhengzhou 450003; China; 2.Key Laboratory of Agrometeorological Safeguard and Applied Technique; CMA; China |
|
| Abstract:Based on water balance of farmland,the variation of crop water requirement,precipitation during the growing season and soil water content at planting of winter wheat and its influence on irrigation water requirement were analyzed.Precipitation during the growing season and previous summer in different climatic year pattern affected the irrigation water requirement of winter wheat greatly.By means of calculation,the isoline of irrigation water requirement for winter wheat was basically a zonal distribution i... |
| Keywords:winter wheat irrigation requirement water requirement climatic year pattern |
| 查看全文 查看/发表评论 下载PDF阅读器 |