| 陕西杨凌土壤粒径分布体积分形维数特征分析及预测 |
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| 引用本文： | 刘继龙,马孝义,付强,张振华.陕西杨凌土壤粒径分布体积分形维数特征分析及预测[J].灌溉排水学报,2012(3):59-62,67. |
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| 作者姓名： | 刘继龙 马孝义 付强 张振华 |
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| 作者单位： | 东北农业大学水利与建筑学院;黑龙江省高校节水农业重点实验室;西北农林科技大学水利与建筑工程学院;鲁东大学地理与规划学院 |
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| 基金项目： | 黑龙江省教育厅科学技术研究项目(12511046);国家自然科学基金项目(50879072;50609022);西北农林科技大学人才专项资金项目(BJRC-2009-001) |
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| 摘 要： | 基于Mastersizer2000激光粒度仪测定的土壤颗粒体积分布信息,研究了杨凌地区土壤粒径分布体积分形维数与土壤基本物理特性之间的关系,建立了该地区土壤粒径分布体积分形维数的估算函数。结果表明,杨凌地区0～20cm和20～40cm土层土壤粒径分布体积分形维数的平均值分别为2.649 1和2.626 2;0～20cm和20～40cm土层土壤粒径分布体积分形维数都与粘粒质量分数的相关性最为显著,与砂粒质量分数的相关性次之;建立的估算函数预测精度较高,其中0～20cm和20～40cm土层土壤粒径分布体积分形维数预测值的相对误差分别介于-0.298%～0.726%和-0.179%～0.772%之间。
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| 关 键 词： | 土壤粒径分布体积分形维数 相互关系 预测 |
Analysis and Forecast of Volume Fractal Dimension of Soil Particle-size Distribution in Yangling of Shaanxi |
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| LIU Ji-long,MA Xiao-yi,FU Qiang,ZHANG Zhen-hua.Analysis and Forecast of Volume Fractal Dimension of Soil Particle-size Distribution in Yangling of Shaanxi[J].Journal of Irrigation and Drainage,2012(3):59-62,67. |
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| Authors: | LIU Ji-long MA Xiao-yi FU Qiang ZHANG Zhen-hua |
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| Institution: | 1.College of Water Conservancy and Architecture,Northeast Agricultural University,Harbin 150030,China; 2.Key Laboratory of Water-saving Agriculture of Universities in Heilong jiang Province,Harbin 150030,China; 3.College of Hydraulic and Architectural Engineering,Northwest A & F University,Yangling 712100,China; 4.Geography and Planning Department,Ludong University,Yantai 264025,China) |
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| Abstract: | Based on soil particle volume distribution,the paper studied relationship between volume fractal dimension of soil particle-size distribution and soil physical properties,and established its estimation function.The results showed that average values of volume fractal dimension of soil particle-size distribution in 0~20 cm and 20~40 cm soil layers were respectively 2.649 1 and 2.626 2 in Yangling;correlation between volume fractal dimension of soil particle-size distribution in 0~20 cm and 20~40 cm soil layers and clay content was most significant,and correlation between them and sand content took second place;relative error of forecasted volume fractal dimension of soil particle-size distribution in 0~20 cm soil layers was between-0.298% and 0.726%,the one in 0~20 cm soil layers was from-0.179% to 0.772%,which illustrated that forecasting precision of established model was very high. |
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| Keywords: | volume fractal dimension of soil particle-size distribution relationship forecast |
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