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首页> 外文会议>2012 International Symposium on Geomatics for Integrated Water Resources Management >Study on Soil Stable Infiltration Characteristics at Different Depths in Dongliao River Basin, Northeast China
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Study on Soil Stable Infiltration Characteristics at Different Depths in Dongliao River Basin, Northeast China

机译：东北辽河流域不同深度土壤稳定入渗特征研究

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摘要

Based on infiltration experiments in the central Dongliao River Basin,the multifractal analysis method was used to investigate the spatial variability of soil stable infiltration characteristics (SSIC) at different depths and the correlation to soil physical properties.Then the conversion models of soil stable infiltration characteristics at different depths were established.The results showed that soil stable infiltration characteristics at different depths were multifractal.The spatial variabilities of soil stable infiltration rates at the depths of 30cm and 50cm were mainly caused by those of clay content,organic matter content and soil moisture content at the depth of 10cm at point scale.The multi-scale analysis results showed that the soil stable infiltration rates at the depths of 30cm and 50cm had the most significant correlation to soil moisture content at the depth of 10cm,soil bulk density,organic matter content and total N content.Two conversion models of soil stable infiltration characteristics at the depths of 30cm and 50cm were established with smaller computational errors,based on multifractal theory.The correlation coefficients of two models were 0.996 and 0.958 respectively,corresponding to RMSE of 0.048 and 0.050.
机译：基于东辽河流域中部的入渗实验，采用多分形分析方法研究了不同深度土壤稳定入渗特征（SSIC）的空间变异性及其与土壤物理性质的关系，然后建立了土壤稳定入渗特征的转换模型。结果表明，不同深度的土壤稳定入渗特征是多重分形的。30cm和50cm深度的土壤稳定入渗率的空间变异主要是由粘土含量，有机质含量和土壤水分引起的。多尺度分析结果表明，在30cm和50cm深度土壤稳定入渗速率与10cm深度土壤水分含量，土壤容重，有机质的相关性最大。物质含量和总氮含量。土壤稳定入渗的两种转化模型基于多重分形理论，建立了深度在30cm和50cm处的特征，计算误差较小。两个模型的相关系数分别为0.996和0.958，对应的RMSE为0.048和0.050。

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