| 基于作物需用水特征和比较优势的作物发展方向研究 |
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| 引用本文： | 苟思,秦大庸,陈强,毛晓敏.基于作物需用水特征和比较优势的作物发展方向研究[J].灌溉排水学报,2009(5). |
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| 作者姓名： | 苟思 秦大庸 陈强 毛晓敏 |
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| 作者单位： | 中国水利水电科学研究院水资源所;中国农业大学水利与土木工程学院; |
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| 基金项目： | 国家重点基础研究发展计划973项目(2006CB403401); 国家创新群体基金项目(50721006) |
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| 摘 要： | 运用比较优势理论,选取了11种作物作为天津市代表性作物。根据天津市1956~2000年45年长系列气象资料、当地作物系数及Penman-Monteith公式,逐日计算天津市代表性作物需水量。确定出各代表性作物可利用的有效降水量,并得出天津市耕地年综合ET值为524 mm。从作物需用水特征和作物比较优势分析,将天津市代表性作物分为4类:重点发展的作物为葡萄、玉米和棉花;维持现有种植规模,重点提高单产的作物为向日葵;根据水情适当压缩种植面积的品种为冬小麦;而水稻、大豆、高粱和瓜类仅在特别需求和受土地条件限制时种植。
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| 关 键 词： | 作物需水量 有效降水 比较优势 天津市 |
The Suggestions of Crops Production Based on the Water Use Condition and the Comparative Priority Index |
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| GOU Si,QIN Da-yong,CHEN Qiang,MAO Xiao-min.The Suggestions of Crops Production Based on the Water Use Condition and the Comparative Priority Index[J].Journal of Irrigation and Drainage,2009(5). |
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| Authors: | GOU Si QIN Da-yong CHEN Qiang MAO Xiao-min |
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| Institution: | GOU Si1,QIN Da-yong1,CHEN Qiang1,MAO Xiao-min2(1.China Institute of Water Resources and Hydropower Research,Beijing 100044,China,2.College of Water Conservancy and Civil Engineering,China Agriculture University,Beijing 100083,China) |
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| Abstract: | This paper applies the comparative superiority theory to select 11 kinds of crops as the representative crops in Tianjin.This study calculates the water requirements of crops and the effective precipitation and elicits that the comprehensive field ET of Tianjin is 524 mm.Finally,this article analyses the water use condition and the comparative priority index of each representative crop and classifies the crops as four kinds.Grape,maize and cotton are the significant corps of Tianjin.Heliotrope's growth dime... |
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| Keywords: | evapotranspiration the effective precipitation comparative superiority Tianjin |
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