Влияние Пожаров На Свойства Степных Почв Зауралья

Габбасова, И. М.; Гарипов, Т. Т.; Комиссаров, М. А.; Сулейманов, Р. Р.; Суюндуков, Я. Т.; Хасанова, Р. Ф.; Сидорова, Л. В.; Komissarov, Alexander V.; Сулейманов, А. Р.; Назырова, Ф. И.

doi:10.1134/s0032180x19120049

Cited by 4 publications

(1 citation statement)

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“…Использование активности ферментов для диагностики последствий фумигации дымом почв Электронный научно-производственный журнал «АгроЭкоИнфо» ================================================= ежегодно нанося громадный ущерб окружающей среде [1]. Установлено существенное воздействие огня на почву, в результате чего происходит изменение физических, химических свойств почв [2][3][4][5]. Еще большее влияние пожары оказывают на биоту и биологическую активность почв [6][7][8][9].…”

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Enzyme activity in assessing the effects of fumigation with soil smoke

Saakian¹,

Ооо²,

Профи³

2021

АЭИ

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As a result of fires, in addition to the fire itself and high temperatures, smoke from combustion products has a significant effect on the biota. The aim of the work was to assess the effect of fumigation with combustion products of plant origin on the biology activity of ordinary chernozem. In a series of model experiments, the reaction of soil enzymes (catalase, peroxidase, polyphenol oxidase, invertase, urease, phosphatase) to the smoke of the studied soil with products of thermal decomposition of plant materials (foliage, needles, straw, wood chips) is shown. A significant decrease in the enzyme activity of the studied enzymes was revealed in the range from 7% to 33%, depending on the time spent under the smoke of chernozem (15–120 minutes). The highest sensitivity to fumigation was noted for enzymes of the class of oxidoreductases: catalase, polyphenoloxidase, and peroxidase. Thus, a significant sensitivity and information content of the indicators of the enzyme activity of soils on the effect of smoke has been established, which can be used in monitoring the consequences of fires. Keywords: PYROGENIC EFFECTS, WILDFIRE, COMBUSTION PRODUCTS, CHERNOZEM, BIOLOGY ACTIVITY

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Enzyme activity in assessing the effects of fumigation with soil smoke

Saakian¹,

Ооо²,

Профи³

2021

АЭИ

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

Semenkov,

Lednev,

Klink

et al. 2024

Eurasian Soil Sc.

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Changes in Enzyme Activity in Post-Pyrogenic Soils (Physical Model Experiment)

Prikhodko,

Kazeev,

Vilkova

et al. 2023

Počvovedenie

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Presented data on changes in the enzymatic activity of soils under pyrogenic effects in model experiments simulating natural fires. A series of experiments aimed at studying pyrogenic inhibition of enzyme activity and dynamics of their recovery in post-pyrogenic soils were performed under laboratory and natural conditions. The objects of the study were sandy soil (Seropeski, Arenosol) and migratory-segregation black soil (Haplic Chernozem (Loamic, Pachic) Rostov region. Model experiments were carried out by treating soil samples with gas burner flame (amount of heat 87–435 × 103 J) and pyrogenic action of wood fuel combustion (10–279 × 106 J). In the first case, the exposure duration was 1 to 5 min, and in the second case from 1 to 120 min. The response of enzymes (catalase, invertase, urease, peroxidase and phosphatase) to low-temperature plasma exposure (1–120 min) was found to differ depending on the enzyme group and degree of exposure. It was found that the depth of penetration of thermal effects in simulated fires was limited to the top soil layer (0–10 cm), and the radius of spread relative to the combustion source did not exceed 20 cm. Temperature values varied according to time, source of exposure and amount of fuel (400–600°C). Sandy soils and chernozem were heated and cooled down at different rates. The activity of catalase, invertase and urease were found to be inversely related to the intensity of pyrogenic exposure. The dynamics of enzyme activity recovery in post-pyrogenic soils was traced. Invertase activity recovered faster than catalase and urease activity, but full recovery after a year does not occur. The results obtained indicate a significantly prolonged effect of inhibition of enzymatic activity during simulation of natural fires.

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Влияние Пожаров На Свойства Степных Почв Зауралья

Cited by 4 publications

References 0 publications

Enzyme activity in assessing the effects of fumigation with soil smoke

Enzyme activity in assessing the effects of fumigation with soil smoke

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

Changes in Enzyme Activity in Post-Pyrogenic Soils (Physical Model Experiment)

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