Limits of resistance of chernozems to petrol pollution: Comparative assessment of different subtypes

IF 4.8 2区 农林科学 Q1 SOIL SCIENCE
Sergey Kolesnikov, Elena Nevedomaya, Anna Kuzina, Vladimir Gaivoronskiy, Tatiana Minnikova, Kamil Kazeev, Tatiana Minkina, Anuj Ranjan, Svetlana Sushkova, Evegenyi Shuvaev, Elena Antonenko, Anastasiya Nemtseva, Vladislav Popov, Vishnu D. Rajput
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Abstract

Petroleum hydrocarbon (PHs) pollution is a serious environmental hazard owing to the growing concern about oil spills. To predict the possible negative consequences of oil spills and their presence in the environment, it is necessary to identify and develop regional and/or local environmentally safe limits that would take into account the local ecological and geochemical characteristics of soils. Model experiments on PHs pollution were carried out for different subtypes of chernozems: Voronic Chernozems (Pachic, Loamic), Calcic Chernozems (Pachic, Loamic), Haplic Chernozems (Pachic, Clayic), Luvic Chernozems (Pachic, Loamic), Haplic Chernozems (Pachic, Loamic), and Haplic Arenosols (Eutric, Arenic). Petrol was applied as a source of PHs to the pre-moistened soil at weight concentrations of 1 % (low pollution), 5 % (medium pollution), and 10 % (high pollution) of the soil weight. After 30 days, the important soil indicators viz., catalase and dehydrogenase activity, the total number of soil bacteria, and the abundance of Azotobacter along with root length of Raphanus sativus (radish) grown on the sample soils were determined. Based on these findings, the ranking of soil resistance to petrol contamination was compiled as Haplic Chernozems (Pachic, Clayic) ≥ Calcic Chernozems (Pachic, Loamic) = Luvic Chernozems (Pachic, Loamic) ≥ Haplic Chernozems (Pachic, Loamic) = Voronic Chernozems (Pachic, Loamic) ≥ Haplic Arenosols (Eutric, Arenic). The identified environmentally safe petrol limits for different subtypes of chernozems range from 1.5 % to 0,6 %. This finding suggests that Haplic Chernozems (Pachic and Clayic) are more resistant to petrol pollution and also provide a safer limit of up to 1.5 % of petrol pollution. The obtained results can be used to develop regional values of the maximum permissible residual petrol content in different subtypes of chernozems.
栗树对汽油污染的抗性极限:不同亚型的比较评估
由于人们对石油泄漏的担忧与日俱增,石油碳氢化合物(PHs)污染已成为一种严重的环境危害。为了预测石油泄漏及其在环境中的存在可能造成的负面影响,有必要根据当地土壤的生态和地球化学特征,确定并制定区域和/或地方环境安全限值。针对不同子类型的切尔诺泽姆进行了 PHs 污染模型试验:Voronic Chernozems(Pachic、Loamic)、Calcic Chernozems(Pachic、Loamic)、Haplic Chernozems(Pachic、Clayic)、Luvic Chernozems(Pachic、Loamic)、Haplic Chernozems(Pachic、Loamic)和 Haplic Arenosols(Eutric、Arenic)。在预湿润土壤中施用汽油作为 PHs 源,浓度分别为土壤重量的 1%(低污染)、5%(中污染)和 10%(高污染)。30 天后,测定了重要的土壤指标,即过氧化氢酶和脱氢酶活性、土壤细菌总数、氮细菌丰度以及在样本土壤上种植的萝卜的根长。根据这些结果,得出了土壤抗汽油污染能力的排序:Haplic Chernozems(Pachic,Clayic)≥ Calcic Chernozems(Pachic,Loamic)= Luvic Chernozems(Pachic,Loamic)≥ Haplic Chernozems(Pachic,Loamic)= Voronic Chernozems(Pachic,Loamic)≥ Haplic Arenosols(Eutric,Arenic)。已确定的不同亚类型的切尔诺泽姆的环境安全汽油限值从 1.5 % 到 0.6 % 不等。这一发现表明,Haplic Chernozems(Pachic 和 Clayic)对汽油污染的抵抗力更强,也提供了更安全的汽油污染限值,最高可达 1.5%。所获得的结果可用于制定不同子类型切尔诺泽姆中最大允许残留汽油含量的区域值。
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来源期刊
Applied Soil Ecology
Applied Soil Ecology 农林科学-土壤科学
CiteScore
9.70
自引率
4.20%
发文量
363
审稿时长
5.3 months
期刊介绍: Applied Soil Ecology addresses the role of soil organisms and their interactions in relation to: sustainability and productivity, nutrient cycling and other soil processes, the maintenance of soil functions, the impact of human activities on soil ecosystems and bio(techno)logical control of soil-inhabiting pests, diseases and weeds.
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