匈牙利土壤退化观测系统的可见光-近红外土壤光谱库

由于土壤光谱被认为是一种快速、简单、准确和非破坏性的分析方法，其应用可与湿法分析相结合，作为一种替代方法。因此，包含一个国家所有土壤类型信息的国家级土壤光谱库的开发正在不断增加，以作为校准预测模型的基础，能够在多个空间尺度上评估土壤的物理和化学参数。本文介绍了一个数据库，其中包含匈牙利土壤退化观测系统（HSDOS）遗留土壤样本的实验室和可见近红外光谱数据。已发布的数据集包括在 5,490 个土壤样本中测量的以下参数：pHKCl、土壤有机质 (SOM)、碳酸钙 (CaCO3)、全盐含量 (TSC)、全氮 (Ntotal)、可溶性磷 (P2O5-AL)、可溶性钾 (K2O-AL)、符合匈牙利标准的塑性指数 (PLI)、土壤剖面深度以及 350 至 2,500 纳米波长的反射率数据。所提供的数据库可作为大陆、国家或地区范围内进一步开展土壤相关研究的补充，以支持可持续的土壤管理。

Soil spectroscopy is regarded as a rapid, simple, accurate and non-destructive analytical method, whose application can be combined with wet chemistry analysis as an alternative approach. Accordingly, the development of national soil spectral libraries containing information on all soil types within a country is growing continuously, serving as a basis for calibrating predictive models that can assess soil physical and chemical parameters across multiple spatial scales. This paper presents a database containing laboratory-measured and visible-near infrared spectral data from legacy soil samples of the Hungarian Soil Degradation Observation System (HSDOS). The released dataset includes the following parameters measured in 5,490 soil samples: pHKCl, soil organic matter (SOM), calcium carbonate (CaCO3), total salt content (TSC), total nitrogen (Ntotal), soluble phosphorus (P2O5-AL), soluble potassium (K2O-AL), plasticity index (PLI) compliant with Hungarian standards, soil profile depth, and reflectance data with wavelengths ranging from 350 to 2,500 nm. The provided database can serve as a supplementary resource for further soil-related research at continental, national or regional scales to support sustainable soil management.