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Petromagnetic Properties of Fallow Soils as an Indicator of the Organic-Matter Content
Izvestiya, Atmospheric and Oceanic Physics ( IF 0.7 ) Pub Date : 2020-12-01 , DOI: 10.1134/s0001433820070026
L. A. Fattakhova , V. P. Shcherbakov , D. M. Kuzina

The magnetic properties of chernozem soils, dark and light gray forest soils, and sod-podzolic soils present in the Republic of Tatarstan have been researched and described using the petromagnetism method, coercive spectrometry, and X-ray phase analysis with the purpose of improving the soil monitoring system in relation to fallow and virgin soils. In the course of soil genesis, iron compounds undergo transformations and the magnetic parameters of the soil profile change in comparison with the parent rocks. It can be said that the magnetic profile reflects the pedogenesis processes. A statistically significant relationship between the humus content on the one hand and the susceptibility and intensity of remanent saturation magnetization (Jrs) on the other hand has been identified. A technique making it possible to separate the contributions of lithogenic and pedogenic magnetic minerals to the saturation remanence (Jrs) intensity has been developed on the basis of coercive spectrometry. In the studied soils, the pedogenic component primarily consists of the organogenic extracellular constituent of the magnetite–maghemite association, which is the best candidate to proxy in assessments of the humus concentration in soils at various depths with magnetic methods.

中文翻译:

作为有机质含量指标的休耕土壤的石油磁特性

为了提高鞑靼斯坦共和国黑钙土、深灰色和浅灰色森林土壤以及草皮灰化土的磁性,采用岩磁法、矫顽力光谱法和 X 射线相分析法进行了研究和描述。与休耕和原始土壤相关的土壤监测系统。在土壤发生过程中,铁化合物发生转变,与母岩相比,土壤剖面的磁参数发生变化。可以说,磁剖面反映了成土过程。一方面腐殖质含量与另一方面剩余饱和磁化强度 (Jrs) 的敏感性和强度之间存在统计学上的显着关系。在矫顽力光谱法的基础上,开发了一种技术,可以区分成岩和成土磁性矿物对饱和剩磁 (Jrs) 强度的贡献。在研究的土壤中,成土成分主要由磁铁矿-磁赤铁矿组合的有机细胞外成分组成,这是用磁性方法评估不同深度土壤中腐殖质浓度的最佳候选者。
更新日期:2020-12-01
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