Influence of Spring Burns on the Properties of Humus Horizon of Chernozem in the Southeast of Western Siberia

IF 1.4 4区农林科学 Q4 SOIL SCIENCE Eurasian Soil Science Pub Date : 2024-03-14 DOI:10.1134/s1064229323603062

I. N. Semenkov, S. A. Lednev, G. V. Klink, D. P. Kasymov, M. V. Agafontsev, S. N. Kostrova, T. V. Koroleva

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Abstract

Influence of spring grass fires on the properties of the upper humus horizon of migrational–mycellary chernozem (Haplic Chernozem) has been studied by the example of soils at the Basic Experimental Complex, Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences (Tomsk). A total of 56 samples (5–14 replicates) were collected at the plots burned two months ago, 1, 2, 3, and 11 years ago. A considerably high stability of the controlled soil properties (cation–anion composition of water extract, content of grain-size fractions and mobile compounds of a wide range of elements, total C and N, organic carbon, pH value, basicity of \({\text{HCO}}_{3}^{ - }\)) under pyrogenic impact of spring grass fires has been found. The content of mobile Ca, Mg and Sr, as well as water-soluble Mg²⁺ and basicity of \({\text{HCO}}_{3}^{ - }\) appear to be informative parameters reflecting a significant pyrogenic impact over the past 11 years. Their content is higher in the soils at recently (0–3 years ago) burnt plots as compared to old-burnt (11 years ago) and unburnt plots. Among the studied parameters, the pH value, the content of mobile Ba and Sr, and the content of grain-size fractions 1–5, 5–10, and 10–50 µm show a low variation coefficient (mainly <20% in all studied subsets of samples); whereas the content of water-soluble ammonium and mobile Li and Zn manifest a high variation coefficient (>70%).

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春烧对西西伯利亚东南部切尔诺泽姆腐殖质地层特性的影响

摘要通过俄罗斯科学院西伯利亚分院（托木斯克）大气光学研究所基础实验综合体的土壤实例，研究了春季草火对迁徙-糜烂-切尔诺泽姆（Haplic Chernozem）上部腐殖质层性质的影响。在两个月前、1 年前、2 年前、3 年前和 11 年前被烧毁的地块上共采集了 56 个样本（5-14 个重复样本）。研究发现，在春季草地火灾的火源影响下，受控土壤特性（水提取物的阳离子-阴离子成分、颗粒大小组分和多种元素的流动化合物含量、总碳和总氮、有机碳、pH 值、碱度）具有相当高的稳定性。移动性 Ca、Mg 和 Sr 以及水溶性 Mg2+ 的含量和 \({\text{HCO}}_{3}^{ - }\) 的碱性似乎是反映过去 11 年中重大火原影响的信息参数。与老烧地块（11 年前）和未烧地块相比，最近（0-3 年前）烧过地块的土壤中它们的含量更高。在所研究的参数中，pH 值、可移动的钡和锶的含量以及 1-5、5-10 和 10-50 µm 粒径组分的含量显示出较低的变异系数（在所有研究的样本子集中主要为 20%）；而水溶性铵、可移动的锂和锌的含量则显示出较高的变异系数（70%）。

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来源期刊

Eurasian Soil Science 农林科学-土壤科学

CiteScore

2.70

自引率

35.70%

发文量

137

审稿时长

12-24 weeks

期刊介绍： Eurasian Soil Science publishes original research papers on global and regional studies discussing both theoretical and experimental problems of genesis, geography, physics, chemistry, biology, fertility, management, conservation, and remediation of soils. Special sections are devoted to current news in the life of the International and Russian soil science societies and to the history of soil sciences. Since 2000, the journal Agricultural Chemistry, the English version of the journal of the Russian Academy of Sciences Agrokhimiya, has been merged into the journal Eurasian Soil Science and is no longer published as a separate title.