Impact of the degree of secondary transformation on acid–base properties of organic compounds in mucks

Sokołowska, Z.; Szajdak, Lech Wojciech; Matyka-Sarzynska, D

doi:10.1016/j.geoderma.2004.11.013

Cited by 19 publications

(13 citation statements)

References 19 publications

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“…Observed low TOC/TN ratio (< 20) indicate temporary drying of these soils, what accelerates the mineralisation of organic matter. Relationship between organic matter mineralsation and soil moisture is commonly reported in the available literature [e.g., 4,24]. Moreover, obtained TOC/TN ratio were similary to those reported by Kołodziejczyk also for peatland in Borek village.…”

Section: Physicochemical and Chemical Propertiessupporting

confidence: 85%

Selected Trace Element Concentrations in Peat Used for Cosmetic Production – A Case Study from Southern Poland

Glina¹

2016

Civil and Environmental Engineering Reports

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The aim of the study was to assess the concentration of selected trace elements in organic soils used as a source to obtain a unique peat extract for cosmetics production. Peat material for laboratory analysis were collected from fen peatland located in the Prosna River Valley (Borek village). Studied peatland is managed by “Torf Corporation” company as a source of material to obtain peat extract for cosmetics production. In the collected soil samples (four soil profiles) Zn, Cu and Pb concentrations were determined by using atomic absorption spectrometer SpectraAA 220 (Varian), after acid digestion. Obtained results showed that the highest concentrations of selected trace elements were recorded in the surface horizons of organic soils. This fact might be the results of Prosna river flooding or air deposition. Howevere, according to the new Polish regulations (Ordinance of the Minister for Environment 01.09.2016 - the way of conducting contamination assessment of the earth surface), the content of trace elements in the examined soils was greatly belowe the permissible limit for areas from group IV (mine lands). Thus, described soils are proper to obtain peat extract used as a component in cosmetic production.

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Section: Physicochemical and Chemical Propertiessupporting

confidence: 85%

Selected Trace Element Concentrations in Peat Used for Cosmetic Production – A Case Study from Southern Poland

Glina¹

2016

Civil and Environmental Engineering Reports

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“…The lowest SOC was observed in horizons under the moorshing process. This phenomenon is broadly reported in the literature (SOKO£OWSKA et al 2005, KOGEL-KNABNER 2002. It is caused by mineralization of organic matter and its release into the atmosphere.…”

Section: Resultsmentioning

confidence: 85%

Concentration and pools of trace elements in organic soils in the Izera Mountains

Glina¹,

Bogacz²

2012

J. Elem.

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Concentrations of trace elements in organic soils are a result of natural accumulation or due to anthropogenic factors. A field study was carried out in May 2008 on selected sites in the Izera Mountains. Soil samples were collected from 8 profiles of organic soils. Four soil profiles were located on the plateau meadow called Hala Izerska, at the altitude of 835-850 m a.s.l. The other 4 profiles were located in the mountain range known as the Grzbiet Wysoki, at 909-990 m a.s.l. The concentration and pools of heavy metals were determined according to the elevation, depth in soil profile, content of organic matter and soil pH. The content of trace elements (Pb, Cu, Zn) was determined after wet mineralization of samples in nitric acid, using a Flame Atomic Absorption Spectrometer. Pools of trace elements were recalculated into g m-2 in the 0-30 cm layer of soil. The aim was to determine the influence of altitude on concentrations of trace elements in organic soils profiles. Organic soils from the Grzbiet Wysoki and Hala Izerska showed significant contamination, mainly with lead and zinc. The elements were most abundant in surface horizons. With an increasing depth into the soil profile, the content of trace elements decreased. The arithmetic means showed strong dominance of lead on zinc and copper in the examined profiles. The Grzbiet Wysoki, due to its higher location above the sea level, is more exposed to atmospheric deposition of contaminants than Hala Izerska. However, the concentration of Cu is higher in organic soils from Hala Izerska. Statistical analysis showed significant positive correlation between the Pb concentration and altitude. With an increasing altitude, the content of Pb in soil also increased. Zinc and lead correlate highly negatively with the depth into the soil profile. With an increasing depth, the content of these elements decreases.

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“…In such conditions, peat soils undergo serious transformations known as the moorsh-forming process (Ilnicki and Zeitz, 2003;Okruszko and Ilnicki, 2003), leading to changes in peat soil morphology, structure (formation of grains), soil physical properties (increasing bulk density, changing relation in water/air properties), and chemical properties. Transformation of peat into moorsh in aerobic conditions after drainage is called the secondary transformation (primary transformation took place during the peatforming process) of organic matter and causes changes in peat quality (Sokołowska et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Effects of peat drainage on labile organic carbon and water repellency in NE Poland

Kalisz¹,

Łachacz²,

Głażewski³

2015

Turk J Agric For

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Hot and cold water-extractable organic carbon (HWC and CWC, respectively) fractions, as good indicators of organic matter quality, as well as water repellency (WDPT test) and state of secondary humification were analyzed in topsoil samples of peatland drained for agricultural purposes 160 years ago. The examined sites (drained and used as grassland) at the peatland had been affected by the moorsh-forming process. During this process, intense mineralization and secondary humification of organic matter took place. The state of transformation of organic soils varied from weak to complete degradation. The HWC contents ranged between 2.623 and 3.572 g kg -1 in field-moist samples and 3.999 and 6.074 g kg -1 in air-dried soil samples. The CWC contents were generally lower than HWC and ranged between 0.411 and 0.535 g kg -1 in field-moist samples and 0.696 and 0.939 g kg -1 in air-dried soil samples. The examined soils were extremely water repellent when dried. The measures of transformation of peat after drainage and WDPT were not significantly correlated, but a tendency for higher values of water repellency at the site regarded as degraded was noted. Deep drainage caused an increase of HWC fraction, which in light of the moorsh-forming process should be regarded as negative. The topsoil of the peatland became dry and resistant to rewetting. However, when the ground water level is maintained at not deeper than 0.50 m, the changes in peat matter do not lead to degradation. HWC is a good measure to show differences occurring within the ecosystem. Given its correlation with state of transformation (W1 index) and water repellency (WDPT test), HWC is a good measurement of peat quality. HWC and WDPT measurements may be helpful in determining degradation of peat soil after drainage.

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Impact of the degree of secondary transformation on acid–base properties of organic compounds in mucks

Cited by 19 publications

References 19 publications

Selected Trace Element Concentrations in Peat Used for Cosmetic Production – A Case Study from Southern Poland

Selected Trace Element Concentrations in Peat Used for Cosmetic Production – A Case Study from Southern Poland

Concentration and pools of trace elements in organic soils in the Izera Mountains

Effects of peat drainage on labile organic carbon and water repellency in NE Poland

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