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Use of sulfate-reducing bacteria and different organic fertilizer for bioremediation of ex-nickel mining soils

100%

Bakhtiar, Sukoso, Saida

Przegląd Naukowy. Inżynieria i Kształtowanie Środowiska

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2021

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tom 30

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nr 4[94]

2

Hydrophysical properties of Humic Latosols from Brazil

100%

Ajayi A. E., Dias,Jr. M. S., Curi N., Pais P. S.-M., Iori P.

International Agrophysics

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2014

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tom 28

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nr 4

The hydrophysical properties of the prevalent Humic Latosols (organic matter rich and charcoal stained soils) were related to structural sustainability under loading. Intact cores collected at the Ap, AB, Bw horizons were used for hydrophysical characterization. Precompression stresses at 10 suctions were obtained to estimate the load bearing capacities. We observed the dominance of kaolinite with some occurrences of gibbsite and hydroxy-interlayered vermiculite in the clay mineralogy. The high organic matter content in the Ap horizon favours crumb structure with the structural unit presenting high porosity and water retention. The structure of the AB and Bw horizons was, however, granular with structural units having low porosity. Possible influence of earlier incidences of fire enhanced the organic matter and carbon content in the soil reducing down the profile from 42.5 g kg-1 at the Ap to 16.4 g kg-1 at the Bw horizon. The C/N ratio increased from 14 at the Ap to 17 at the Bw, and air capacity increased from 18.1% at Ap to 32.0% at Bw. Precompression stress values were: 100.6±40.7 kPa at Ap, 117.4±44.6 kPa at AB, and 116.1±58.9 kPa at Bw. Load bearing capacities at the AB and Bw horizons were homogenous.

3

Soil colour and spectral analysis employing linear regression models. I. Effect of organic matter

100%

Barouchas P. E., Moustakas N. K.

International Agrophysics

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2004

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tom 18

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nr 1

4

Dynamics of organic matter in peat soil under the conditions of sand-mix culture during 15 years

100%

Bambalov N.

International Agrophysics

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1999

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tom 13

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nr 2

5

Spatiotemporal variation of biochemical composition of organic matter and number of bacteria in core sediments of selected beaches of the southern Baltic Sea

86%

Bigus K., Astel A., Stec M., Piskula P.

Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline

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2017

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tom 21

Sandy sediments coming from three beaches of the southern Baltic Sea were collected and analyzed. Investigated beaches were divided according to strength of anthropogenic impact and degree of sheltering. The first beach was situated in Ustka on the eastern side of the mouth of the Słupia River, second in Czołpino and the last one in Puck. Core sediment samples were collected seasonally, depending on the influence of the sea water on the examined sediments. At each station, surface sediments (0-5 cm) were collected as well as sediments at the depth of 10-15 cm. The general content of organic matter, proteins, lipids, carbohydrates, organic carbon and total bacterial number were determined. The results of the conducted tests reveal, that anthropopressure, degree of sheltering, the depth where the collected sediments were taken and the direct influence of the sea water on the sediments have impact on the chemical composition of organic matter and bacterial number in beach sediments.

6

State-space estimation of soil organic carbon stock

86%

Timm L. C., Ogunwole J. O., Obidike-Ugwu E. O., Gabriels D. M.

International Agrophysics

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2014

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tom 28

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nr 2

Understanding soil spatial variability and identifying soil parameters most determinant to soil organic carbon stock is pivotal to precision in ecological modelling, prediction, estimation and management of soil within a landscape. This study investigates and describes field soil variability and its structural pattern for agricultural management decisions. The main aim was to relate variation in soil organic carbon stock to soil properties and to estimate soil organic carbon stock from the soil properties. A transect sampling of 100 points at 3 m intervals was carried out. Soils were sampled and analyzed for soil organic carbon and other selected soil properties along with determination of dry aggregate and water-stable aggregate fractions. Principal component analysis, geostatistics, and state-space analysis were conducted on the analyzed soil properties. The first three principal components explained 53.2% of the total variation; Principal Component 1 was dominated by soil exchange complex and dry sieved macroaggregates clusters. Exponential semivariogram model described the structure of soil organic carbon stock with a strong dependence indicating that soil organic carbon values were correlated up to 10.8m.Neighbouring values of soil organic carbon stock, all waterstable aggregate fractions, and dithionite and pyrophosphate iron gave reliable estimate of soil organic carbon stock by state-space.

7

Concentration of nutrients in the soil in water-level-fluctuating zone of Three Gorges Reservoir

86%

Zhang B., Guo J.-S., Fang F., Li Z., Fu C.

International Journal of Ecohydrology and Hydrobiology

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2012

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tom 12

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nr 2

8

Speciation of organic matter in vertical flow constructed wetlands

86%

Tuszynska A., Obarska-Pempkowiak H.

Polish Journal of Environmental Studies

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2009

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tom 18

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nr 4

735-740

The object of our research were vertical flow constructed wetlands (VFCWs) that are a component of biological treatment of two hybrid hydrophyte systems located in Wieszyno and Wiklino, near Słupsk, Poland. The facilities that are subject to analyses are unified in terms of structure (filtration material, depth of bed and time of operation), but they differ in organic matter load, amounting respectively to: 8.0 gCOD/m²day and 31.0 gCOD/m²day. The intensity of oxygenation of the facilities resulting from diffusive flow of oxygen to the soil was determined based on the measurements of oxygen diffusion coefficient in the soil (Dg). The analysis of the quality of organic matter in wastewater was concentrated on determining concentrations of the following four fractions: in suspended solids and in dissolved phase both decomposable and non-decomposable ones. The investigation proved that the increase in load of organic matter resulted in deterioration of oxygen conditions in the bed, which in turn led to a decrease in efficiency of pollutant removal. Higher load of organic matter in the facility of Wieszyno as compared with Wiklino was the direct cause of VFCW clogging.

9

Estimation of the density of the clay-organic complex in soil

86%

Czyz E. A., Dexter A. R.

International Agrophysics

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2016

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tom 30

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nr 1

10

Identification of phenolic compounds in forest soils

86%

Debska B., Banach-Szott M.

Polish Journal of Soil Science

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2010

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tom 43

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nr 2

The aim of the present paper was to determine the content of phenolic compounds in the organic and mineral horizons of forest soils under different tree species. The study involved taking samples from the organic and mineral horizons of forest soils located in the area of the Arboretum in Mlynany, in Slovakia. Phenolic compounds were identified with the chromatographic method (HPLC). The results showed that the content of phenolic compounds identified in the forest soils depended both on the tree species and the soil sampling depth. The Ol subhorizon on the oak stand showed a similar share of vanillyl compounds to the total of syringyl and cinnamyl compounds (52:15:33), while the Ol subhorizons on the spruce and thuja stands identified a considerable advantage of vanillyl compounds. The value of parameter V+S+C, applied as the decomposition indicator of the plant material in the soil, decreased with soil profile depth and thus decreased with an increase in the degree of organic matter humification.

11

Can seabirds modify carbon burial in fjords?

86%

Weslawski J. M., Urbanski J., Gluchowska M., Grzelak K., Kotwicki L., Kwasniewski S., Legezynska J., Wiktor J., Wlodarska-Kowalczuk M., Zaborska A., Zajaczkowski M., Stempniewicz L.

Oceanologia

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2017

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tom 59

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nr 4

Two high latitude fjords of Spitsbergen (Hornsund 77°N and Kongsfjorden 79°N) are regarded as being highly productive (70 g and 50 gC m−2 year−1) and having organic-rich sediments. Hornsund has more organic matter in its sediments (8%), nearly half of it of terrestrial origin, while most of that in Kongsfjorden (5%) comes from fresh, marine sources (microplankton). Analysis of the carbon sources in both fjords shows that a major difference is the much larger seabird population in Hornsund-dominated with over 100 thousands pairs of plankton feeding little auks in Hornsund versus 2 thousand pairs in Kongsfjorden, and marine food consumption estimated as 5573 tonnes of carbon in Hornsund, versus 3047 tonnes in Kongsfjorden during one month of chick feeding period. Seabird colonies supply rich ornithogenic tundra (595 tonnes of C, as against only 266 tonnes of C in the Kongsfjorden tundra). No much of the terrestrial carbon, flushed out or wind-blown to the fjord, is consumed on the seabed – a state of affairs that is reflected by the low metabolic activity of bacteria and benthos and the lower benthic biomass in Hornsund than in Kongsfjorden.

12

Preliminary characteristics of some bottom sediments of the Baltic Sea

86%

Szponar Z., Rzechula J., Pielak A.

Oceanologia

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1985

|

tom 20

13

The biochemical composition of sedimentary organic matter in sandy beaches of various anthropopressure

86%

Trojanowski J., Bigus K.

Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline

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2013

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tom 17

Beach sediments from two beaches at the Polish coast of the Baltic Sea were collected and analyzed. The sediments were collected in two seasons – winter and summer – at two stations, depending on the influence of the sea water on the examined sediments. At each station, surface sediments (0-5 cm) were collected as well as sediments at the depth of 10-15 cm. The results of the conducted tests reveal, that anthropopressure, the depth where the collected sediments were taken and the direct influence of the sea water on the sediments have impact on the chemical composition of beach sediments and their food quality for the inhabiting psammon. The conducted tests disclose that there is more organic matter and its labile forms in the sediments originating from Ustka. Strong anthropogenic pressure found at the beach in Ustka also contributes to higher concentration of uncharacterized fraction of organic carbon in the area. Analyzing alimentary usefulness of the organic matter there, it seems to be higher at the beach in Czołpino.

14

Recent alterations of aerosol concentration, mercury distribution and organic matter deposition in the Arctic

86%

Pempkowiak J., Zielinski T., Petelski T., Zaborska A., Beldowski J.

Papers on Global Change

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2011

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nr 18

Material fluxes in the Arctic and Antarctic have been, in several respects, strongly affected recently. For example, atmospheric turbidity conditions are frequently subject to strong changes due to haze and dust transport episodes, which can cause considerable perturbations in the radiation balance of the atmosphere beyond regional scale. This, directly or indirectly, contributes to the increased mercury deposition and organic matter fluxes to sediments. The results show that local emissions are not always the most important factors influencing the composition of aerosol in the atmosphere of the west Spitsbergen region. The direct radiative impact of polar aerosols on the surface and at the top of the atmosphere (TOA) need to be studied more closely through both theoretical studies on the aerosol radiative properties and measurements of the surface reflectance characteristics. Mercury dissolved/solid partitioning, both in the unconsolidated, fluffy layer of suspended matter covering the sediments, and the uppermost sediment layer, indicate that the influence of the athmospheric mercury deposition event (AMDE) can prolong well into summer (July/August), and can provide a pathway to the food chain for mercury contained in sediments. Since terrigenous supplies of organic carbon to the Barents Sea are minor (∼5%) compared to the marine supply, modern sediment deposits in this region sequester on average 6.0 g/m2year organic carbon, or 5.8% of the annual integrated pelagic primary production. This burial fraction exceeds, by a factor of 3, the burial fraction derived for the Holocene.

15

Model studies on crust formation in artifical soil

86%

Jozefaciuk G., Debicki R., Alekseeva T., Alekseev A.

Polish Journal of Soil Science

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1997

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tom 30

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nr 1

16

The impact of different fertilization and cropping systems on soil organic matter [SOM] content and quality in Lithuania

86%

Slepetiene A., Buciene A., Huttmann S., Beyer L., Pingpank K.

Zeszyty Naukowe Akademii Rolniczej w Krakowie. Sesja Naukowa

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2001

|

tom 77

17

The characteristics of the properties of humic acids extracted from sewage sludge

86%

Flis-Bujak M., Zukowska G.

Polish Journal of Soil Science

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2002

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tom 35

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nr 2

18

Transformations and release of phosphorus forms at the sediment-water interface in the Pomeranian Bay [Southern Baltic]

86%

Frankowski L., Bolalek J.

Oceanologia

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1999

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tom 41

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nr 3

19

Monosaccharides in the water of the Gulf of Gdańsk

86%

Grzybowski W., Maksymiuk A.

Oceanologia

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2001

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tom 43

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nr 2

The concentration of monosaccharides in samples collected in the Gulf of Gdańsk area was determined in water filtered through ∼0.8 μm pore size filters. Seawater concentrations ranged from about 0.2 to 1.1 mg C dm−3, the highest values being detected at the mouth of the river Vistula. Seasonality was detectable in the data distribution; the majority of autumn values lay within the 0.2–0.4 range while concentrations in the spring samples were higher and the values more widely scattered. Measurements of monosaccharide concentrations at selected points during the whole observation period showed that values increased from spring to autumn as much as 5-fold. Concomitant analyses in Vistula river water yielded concentrations from 0.4 to 1.2 mg C dm−3. These latter values were all higher than those recorded in seawater in the corresponding months.

20

Biological and physicochemical changes in Orthic Luvisol in relation to the cultivation system

86%

Dabek-Szreniawska M., Sokolowska Z., Wyczolkowski A. I., Hajnos M., Kus J.

International Agrophysics

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2002

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tom 16

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nr 1

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