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Introduction of the Hungarian Detailed Soil Hydrophysical Database (MARTHA) and its use to test external pedotransfer functions

机译:匈牙利详细土壤水文物理数据库(MARTHA)的介绍及其在测试外部pedotransfer功能中的用途

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摘要

The Hungarian Detailed Soil Hydrophysical Database, called MARTHA ver2.0 has been developed to collect information on measured soil hydraulic and physical characteristics in Hungary. Recently this is the largest detailed national hydrophysical database, containing controlled information from a total of 15,005 soil horizons. Two commonly used pedotransfer functions were tested to evaluate the accuracy of the predictions on the MARTHA data set, representative for Hungarian soils. In general, the application of both examined pedotransfer functions (rajkai, 1988; wosten et al., 1999) was not very successful, because these PTFs are representative for other soil groups. The classification tree method was used to evaluate the effect of soil structure on the goodness of estimations. It was found that using the soil structure data the inaccuracies of soil water retention predictions are more explainable and the structure may serve as a grouping variable for the development of class PTFs.
机译:建立了匈牙利详细土壤水物理数据库,称为MARTHA ver2.0,以收集有关匈牙利测得的土壤水力和物理特性的信息。最近,这是最大的详细的国家水文物理数据库,其中包含来自总共15005个土壤层的受控信息。测试了两个常用的pedotransfer函数,以评估代表匈牙利土壤的MARTHA数据集预测的准确性。总的来说,这两个已检验的pedotransfer函数的应用(rajkai,1988; wosten等,1999)不是很成功,因为这些PTF代表了其他土壤类型。使用分类树方法评估土壤结构对估算的良好性的影响。已经发现,使用土壤结构数据,土壤保水预测的不精确性更容易解释,并且该结构可以作为类别PTFs发展的分组变量。

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