| 灌溉水矿化度及盐分带入量对小麦相对产量影响的统计分析 |
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| 引用本文： | 尚伟,石建初,牛灵安,左强.灌溉水矿化度及盐分带入量对小麦相对产量影响的统计分析[J].灌溉排水学报,2009(5). |
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| 作者姓名： | 尚伟 石建初 牛灵安 左强 |
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| 作者单位： | 中国农业大学资源与环境学院;中国农业大学曲周实验站; |
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| 基金项目： | 国家863计划重点项目(2006AA100207); 国家自然科学基金项目(50779065) |
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| 摘 要： | 在搜集、统计大量咸水灌溉试验资料的基础上,选取咸水充分灌溉条件下矿化度和小麦产量的完整对应数据103组,统计分析了灌溉水矿化度及单位面积盐分带入量对小麦相对产量的影响,结果表明,随着灌溉水矿化度的增加,小麦相对产量呈线性递减趋势,当矿化度大于1.0 g/L时,灌溉水矿化度每增加1 g/L,小麦减产约5.6%;与矿化度类似,随着单位面积盐分带入量的增加,小麦的相对产量也线性降低,盐分带入量每增加1000 kg/hm2,小麦的产量将减少约2%。进一步的检验结果显示,应用灌溉水矿化度及单位面积盐分带入量均可较为可靠地估算小麦的相对产量,估算相对误差基本可控制在16%以内。
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| 关 键 词： | 咸水灌溉 矿化度 盐分带入量 小麦 相对产量 |
Statistical Analysis of the Relationship between Irrigated Saline Water's Mineralization Degree/Salt Mass and the Relative Yield of Wheat |
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| SHANG Wei,SHI Jian-chu,NIU Ling-an,ZUO Qiang.Statistical Analysis of the Relationship between Irrigated Saline Water''s Mineralization Degree/Salt Mass and the Relative Yield of Wheat[J].Journal of Irrigation and Drainage,2009(5). |
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| Authors: | SHANG Wei SHI Jian-chu NIU Ling-an ZUO Qiang |
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| Institution: | SHANG Wei1,SHI Jian-chu1,NIU Ling-an2,ZUO Qiang1(1.College of Resources and Environmental Sciences,China Agricultural University,Beijing 100193,China,2.Quzhou Experimental Station,Handan 057250,China) |
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| Abstract: | Totally 103 sets of mineralization degree vs.relative yield and salt mass per unit area vs.relative yield were pooled together,and both data sets showed general trends,independent on different conditions of soil environments,wheat species,climates,etc.The relative yield of wheat under saline water irrigation decreased with increasing degree of mineralization and brought in salt mass of the supplied saline water.Two linear functions were fitted to characterize relationships of the mineralization degree vs.re... |
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| Keywords: | saline water irrigation degree of mineralization brought in salt mass by saline water irrigation wheat relative yield |
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