Dehydrogenase activity in topsoil at windthrow plots in Tatra National Park

Hanajík, Peter; Gáfriková, Jana; Zvarík, Milan

doi:10.1515/forj-2017-0017

Cited by 9 publications

(15 citation statements)

References 29 publications

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“…SOM serves not only as a source of energy and nutrients for microorganisms but also provides organic compounds for stabilization of organic matter. The mean DW% determined in our study was 63.4%, and the mean content of SOM was 26.6%, which is compara-63.4%, and the mean content of SOM was 26.6%, which is compara-content of SOM was 26.6%, which is compara-26.6%, which is compara-which is comparable to previous research (Ďugová et al, 2013;Gáfriková, Hanajík, 2016;Hanajík et al, 2017).…”

Section: Soil Organic Matter Fractionssupporting

confidence: 89%

“…The optimal mineralization of lignin and cellulose by Streptomices viridiosporus was observed at pH 8.5 (Pometto, Crawford, 1986). However, soil pH of the studied site was found to be strongly acidic (pH H2O 4.0; pH KCl 3.2) (Hanajík et al, 2017), which means suppressed biodeg- (Hanajík et al, 2017), which means suppressed biodeg-, which means suppressed biodegradation and SOM turnover.…”

Section: Soil Organic Matter Fractionsmentioning

confidence: 86%

“…In Tatra Mts., the forest covers approximately 60,000 ha at both Slovak and Polish sides (Jonášová et al, 2010). Thus it serves as the suitable location for monitoring the soil chemical and biological properties (Hanajík, Fritze, 2009;Gáfriková, Hanajík, 2016;Hanajík et al, 2016a;2017).…”

Section: Introductionmentioning

confidence: 99%

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Determination of Organic Fractions and Enzymatic Activity in Forest Spruce Soil of Tatra National Park

Gáfriková

Hanajík

Zvarík

2018

Ekológia (Bratislava)

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The formation and quality of soil organic matter (SOM) highly depends on the input of organic material and microbial enzymatic activities. Soil extractions with specific nonpolar and polar extractives can be used to identify qualitative changes in SOM. The aim of this paper was to understand the correlations among microbial enzymatic activity and specific organic fractions in acidic spruce forest soil. Klason lignin (KL), acid soluble lignin (ASL), holocellulose (HC), SOM content, and potential enzymatic activity (FDA and phosphatase) was measured and analyzed. We sampled Dystric Cambisol of forest spruce stands (Picea abies) in Tatra National Park (Slovakia). The SOM fractions were determined gravimetrically based on their extractivity in nonpolar (dichloromethane (DME)) and polar (acetone (AE), ethanol (EE), water (WE)) solvents Total extractives content was 0.079% and nonpolar extractives 0.036%. The mean amount of polar extractives tented to increase in the order EE<AE<WE. The total lignin content was determined to be 1.079% and HC 0.774%. FDA negatively correlated with KL (r=-0.873 p<0.05) and DME (r=-0.913 p<0.05). Phosphatase positively correlated with WE (r=0.972 p<0.01) and KL (r=0.957 p<0.01).

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Section: Soil Organic Matter Fractionssupporting

confidence: 89%

Section: Soil Organic Matter Fractionsmentioning

confidence: 86%

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Determination of Organic Fractions and Enzymatic Activity in Forest Spruce Soil of Tatra National Park

Gáfriková

Hanajík

Zvarík

2018

Ekológia (Bratislava)

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“…Among all enzymes, dehydrogenase enzyme is one of the most important and is used as an indicator of overall soil microbial activity [9]. In addition, dehydrogenase is often used as a parameter for assessing the side effects of pesticides and other pollutions [10,11]. More than 100 different enzymes have been found in the soil that are responsible for various stages of the transformation of organic matter in soil-forming processes.…”

Section: Introductionmentioning

confidence: 99%

Effect of Herbicide Clopyralid and Imazamox on Dehydrogenase Enzyme in Soil of Regenerated Pedunculate Oak Forests

Vasić

Hajnal-Jafari

Djurić

et al. 2022

Forests

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Clopyralid and imazamox are successfully used for weed control during the first years of regeneration of pedunculate oak forests. Hence, the question that arises is how these herbicides affect microorganisms, especially the activity of dehydrogenase enzyme, when they reach the soil. Two study sites were selected in regenerated pedunculate oak forests, and the two herbicides were applied in two doses that are used for weed control (clopyralid, 100 g a.i. ha−1 and 120 g a.i. ha−1; imazamox, 40 g a.i. ha−1 and 48 g a.i. ha−1). The effect of the herbicides was evaluated 7, 14, 21, 30, and 60 days after application. A significant reduction in dehydrogenase activity was found on days 7 and 14 at both sites. However, after 14 days there was a recovery of dehydrogenase activity for all treatments such that the values obtained on day 21 did not differ from the control values. The effect of clopyralid and imazamox on dehydrogenase activity was not dose-dependent. Dehydrogenase activity also depended on soil properties, soil sampling time and climatic conditions during the investigation years. The results show that clopyralid and imazamox can reduce soil dehydrogenase activity, but this effect is transient. This can be attributed to the ability of microorganisms to overcome the stress caused by the herbicide by developing the capability to utilize herbicides as a nutrient source and proliferating in such an environment.

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“…The disaster is counted among the 10 most terrible European wind calamities over the last 30 years [18]. At four internationally monitored localities (Figure 1), systematic ecological observations from many research fields were initiated to monitor climate and land-use changes [19], water repellence of forest soils [20], soil properties in relation to the determination of organic fractions and enzymatic activity [21], soil microbiology and microbial diversity [22,23], plant community structure and changes in vegetation cover [24], tree-ring reconstruction [25] and soil fauna changes [26]. microbiology and microbial diversity [22,23}, plant community structure and changes in vegetation cover [24], tree-ring reconstruction [25] and soil fauna changes [26].…”

Section: Introductionmentioning

confidence: 99%

Soil Microbiota of Dystric Cambisol in the High Tatra Mountains (Slovakia) after Windthrow

et al. 2019

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There has been much more damage to forests in the Slovak Republic in the second half of the 20th century than to other European countries. Forested mountain massifs have become a filter of industrial and transportation emissions from abroad, as well as from domestic origins. There are not only acidic deposits of sulphur and heavy metals present in forest soils, but other additional environmental problems, such as climate change, storms, fires, floods, droughts, are worsening the situation. Therefore, forest terrestrial ecosystems are becoming more vulnerable due to changes in natural and environmental conditions. In the High Tatra Mountains in Slovakia, which are protected as a national park, four internationally monitored localities were established after the windthrow disaster in 2004 and fire in 2005: REF, with intact forest; EXT, with extracted wood mass; NEX, with non-extracted wood mass; and FIR, the burnt locality. Soils from these localities were microbiologically analysed with special attention to fungi. Bacterial microbiota detected by high-throughput sequencing showed the prevalence of the genera Acidothermus, Mycobacterium, and Nocardia, and a very low presence of the genera Acidibacter, Burkholderia-Paraburkholderia, Optitus and the uncultured genus Desulfurellaceae H16 in the soil sample from the burnt locality when compared with the unburned sites. Additionally, soil mycocoenoses showed a low similarity between the locality with an intact forest ecosystem and the localities with extracted (REF–EXT) and non-extracted (REF–NEX) wood mass. There was no similarity with the burnt locality (FIR), where heat-resistant fungi dominated. It was shown that the windthrow disaster and subsequent extraction or non-extraction of wood mass did not affect the soil microbial communities or their development. On the other hand, the influence of fire was significant.

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Dehydrogenase activity in topsoil at windthrow plots in Tatra National Park

Cited by 9 publications

References 29 publications

Determination of Organic Fractions and Enzymatic Activity in Forest Spruce Soil of Tatra National Park

Determination of Organic Fractions and Enzymatic Activity in Forest Spruce Soil of Tatra National Park

Effect of Herbicide Clopyralid and Imazamox on Dehydrogenase Enzyme in Soil of Regenerated Pedunculate Oak Forests

Soil Microbiota of Dystric Cambisol in the High Tatra Mountains (Slovakia) after Windthrow

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