| 喷灌大田土壤水分不同空间插值方法对比分析 |
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| 引用本文： | 刘小飞,张寄阳,刘祖贵,孙景生,王景雷,孙磊. 喷灌大田土壤水分不同空间插值方法对比分析[J]. 灌溉排水学报, 2008, 27(4) |
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| 作者姓名： | 刘小飞 张寄阳 刘祖贵 孙景生 王景雷 孙磊 |
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| 作者单位： | 中国农业科学院,农田灌溉研究所,河南,新乡,453003;华北水利水电学院,郑州,450011;中国农业科学院,农田灌溉研究所,河南,新乡,453003;华北水利水电学院,郑州,450011 |
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| 基金项目： | 科研院所社会公益研究专项 , "十一五"国家支撑计划项目 , 国家自然基金资助项目 |
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| 摘 要： | 利用冬小麦大田喷灌土壤水分测定数据,对大田喷灌的土壤水分进行了统计分析,揭示了土壤水分属于中等变异,且土壤水分不属于正态分布。然后分别使用克里格法、反距离加权法、径向基函数法和多项式回归法对大田喷灌低水分处理的土壤水分进行插值分析,结果表明克里格插值方法优于径向基函数法,径向基函数法优于反距离加权法,反距离加权法优于多项式回归法。最后利用高水分处理的土壤水分数据进行验证,得出此结论成立,并绘制了高、低水分处理的等值线图。
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| 关 键 词： | 喷灌 土壤水分 插值 水分分布 |
Comparative Analysis on Different Spatial Interpolation Methods of Soil Moisture in Winter Wheat Field under Sprinkler Irrigation |
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| LIU Xiao-fei,ZHANG Ji-yang,LIU Zu-gui,SUN Jing-sheng,WANG Jing-lei,SUN Lei. Comparative Analysis on Different Spatial Interpolation Methods of Soil Moisture in Winter Wheat Field under Sprinkler Irrigation[J]. Journal of Irrigation and Drainage, 2008, 27(4) |
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| Authors: | LIU Xiao-fei ZHANG Ji-yang LIU Zu-gui SUN Jing-sheng WANG Jing-lei SUN Lei |
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| Affiliation: | LIU Xiao-fei1,2,ZHANG Ji-yang1,LIU Zu-gui1,SUN Jing-sheng1,WANG Jing-lei1,SUN Lei2(1.Farml, Irrigation Research Institute,Chinese Academy of Agricultural Sciences,Xinxiang 453003,China,2.North China University of Water Conservancy , Electric Power,Zhengzhou 450011,China) |
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| Abstract: | Based on the soil moisture data in winter wheat field under sprinkler irrigation,the statistical analysis on the soil moisture data was carried on.The result showed that soil moisture in sprayed field belonged to medium variation,and did not belong to normal distribution.Then the interpolation analysis on soil moisture in sprayed field was conducted by adopting the Kriging,Inverse Distance Weighting(IDW),Radial Basis Function(RBF) and Polynomial Regression.The results showed Kriging interpolation method was... |
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| Keywords: | sprinkler irrigation soil moisture spatial interpolation soil moisture distribution |
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