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The soils studied represent Gelic Cambisols and Gelic Gleysols of Calypsostranda, Western Spitsbergen. They are characterized by varied basic properties and total composition. The studies allow us to conclude that the relationship Fed/Fet% facilitates to the determination of the soil weathering degree from the studied indicators, while the Parker’s indicator, although giving similar results like the relationship Fed/Fet%, requires increased workload in the laboratory. The usage of the remaining indicators needs further studies on a larger scale and on more varied soil material.
The aim of the study was to estimate some of the microelements (Cu, Zn, Mn, Pb and Cd) in the form available to plants and extracted from the soils of the Bellsund seaboard with DTPA-TEA and to estimate the level of connection between these metals and the soil properties. The study of the microelements was conducted during the polar expeditions of the Institute of Earth Sciences (UMCS, Lublin) to Spitsbergen in the years 1987-2002. The research embraced Gelic Leptosols, Gelic Regosols, Gelic Gleysols, Gelic Cambisols, Gelic Histosols soils occurring in the major physio-graphic units (Dunderdalen, Logne, Dyrstaddalen, Työrndalen, Blomlidalen, Lyellstranda, Calypso-stranda, Tomtoden, Chamberlindalen) of the Bellsund area. The research enables us to draw some general conclusions: (i) the contents of the analysed heavy metals (Cu, Zn, Mn, Pb, Cd) as well as the properties of Bellsund soils are diversified; (ii) statistical analysis shows a negative correlation between the Pb and Cu content with the content of sand ɸ 1-0.1 mm fraction, positive correlation of the Cd and Mn contents with the fine fraction, and of the Pb and Zn contents with organic carbon; (iii) the tested soils are not contaminated with any DTPA-TEA extractable microelemets.
In this paper the results of studies on three different forms of phosphorus – total, organic and inorganic – in soils of the Chornohora massif (Eastern Carpathians, Ukraine), depending on altitude, have been presented. The studied gleyed acid brown soils are situated in the belt of alpine meadows (1760 and 2057 m a.s.l.) and in the forest layer (1020 and 1120 m a.s.l.).
Soils in the Chamberlindalen area (Bellsund, Spitsbergen) have been formed under polar climatic conditions, influenced by many years of permafrost, and chemical and physical weathering. The type of bedrock and local water conditions are considered to be significant soil-forming factors. The following soil units were distinguished according to the FAO-UNESCO Revised Legend (1997): Gelic Leptosols, Gelic Regosols, Gelic Gley- sols, and Gelic Cambisols. The basic properties of the soils studied are (i) shallow soil profile with poorly differentiated genetic horizons, (ii) the particle size distribution of sands and loams, (iii) a considerable content of the silt fraction, (iv) different pH, and a considerable organic carbon content.
The basic properties of soils in major physiographic units of the area were examined. The content of several heavy metals (Cu, Zn, Mn, Pb, Cd, Co) in soils and selected vascular plants were determined, also. The relationship between the content of metals in plants and the content of metals in soils was determined. The content of metals in both soils and plants had a particular order, although not the same all the time. It usually opens with manganese and closes with cadmium. The plants of the Silene acaulis(L.) type are characteristic of high values of manganese. Positive correlations were observed between the content of copper in soils and theSaxifraga cespitosa(L.) and Saxifraga oppositifolia (L.) plants. A negative correlation was observed between the content of copper in soils and the Dryas octopetala (L.) plants.
The aim of the studies was to determine the various forms of heavy metals (Zn, Cu, Mn, Pb,Co, and Ni) in the soil profiles of Gleyi-Dystric Cambisols in the mountain massive of Chornohora (Ukraine). The soil environment of Chornohora appeared to be not polluted with the heavy metals analyzed. Minor excess can only be observed in the content of the following metals (in mg per kg): total Pb – 142.41, Pb(DTPA) – 106.93 (profile 1, organic horizon O), total Zn – 232.92 (profile 3, organic horizon O). The above alleviated amounts of some metals can be attributed to progressive anthropopressure on Carpathian soils.
The analysis of distribution of various forms of Cd, Pb, and Mn in the profile was carried out in Dystric Cambisols on the example of the Western Bieszczady soils (SE Poland). In the soil material, the grain size distribution was determined and the sequential analysis of cadmium, lead, and manganese was performed resulting in the following forms: F1 – exchangeable form; F2 – form bound with organic matter; F3 – form bound with manganese oxides; F4 – form bound with slightly crystalline iron oxides; F5 – form bound with crystalline iron oxides; F6 – residue. The contents of produced forms (Cd, Pb, Mn) determined in the particular textural groups differ substantially. The residual forms of cadmium, lead, and manganese dominated in almost all the textural groups of the soils examined. Also lead in the form bound with amorphous iron oxides showed an increased concentration in all the textural groups. The smallest content of lead and cadmium was determined in the form bound with manganese oxides, whereas the smallest content of manganese was determined in the form bound with organic matter.
The study concludes the results of research conducted for over 20 years in Spitsbergen by the Department of Soil Science of the Maria Curie-Skłodowska University. The results have been presented in nine figures provided with concise commentaries and in the form of seven conclusions.
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Water retention of arctic zone soils (Spitsbergen)

51%
The water retention characteristics of the arctic zone soils ((TurbicCryosol (Skeletic), TurbicCryosols (Siltic, Skeletic) and BrunicTurbicCryosol (Arenic)) derived in different micro-relief forms were determined. Water retention curves were similar in their course for the mud boils, cell forms, and sorted circles ie for TurbicCryosols. For these forms, the mud boils showed the highest water retention ability, whereas the sorted circles – the lowest one. Water retention curves for the tundra polygonsv (Brunic TurbicCryosol, Arenic) were substantially different from these mentioned above. The tundra polygons were characterized by the lowest bulk density of 1.26 g cm-3, whereas the sorted circles (TurbicCryosol, Skeletic) – the highest: 1.88 g cm-3. Total porosity was the highest for the tundra polygons (52.4 and 55.5%) and the lowest – for the sorted circles (28.8 and 26.2%). Pore size distribution of the investigated soils showed that independently of depths, the highest content of large and medium pores was noticed for the tundra polygons ie 21.2-24.2 and 19.9-18.7%, respectively. The lowest content of large pores was observed for the cell forms (6.4-5.9%) whereas the mud boils exhibited the lowest amount of medium sized pores (12.2-10.4%) (both TurbicCryosols Siltic, Skeletic). The highest content of small pores was detected in the mud boils – 20.4 and 19.0%.
Saprotrophic filamentous microfungi were isolated by means of the soil dilution method from soil samples collected from four locations in the Bellsund region of Spitsbergen (77°33'N, 14°31'E) representing the following forms of surface micro-relief: an old stormbank, a sorted circle, a frost fissure between tundra polygons, and the central part of a tundra polygon. The fungal isolates were identified and screened for their ability to grow at low temperatures. The oligotrophy of psychrophilic and psychrotrophic strains was then determined as the ability of growth on silica gel without a C source added. Differences in some physico-chemical properties were found between the soils sampled from the four sites. A total of 89 taxa from 17 genera were isolated. Most of the isolates were species of Mortierella, Penicillium, Chrysosporium and Phialophora, and half of them were psychro- philes. Fungal communities isolated from a frost fissure between tundra polygons (site 3) and from the central part of a tundra polygon (site 4) were dominated by psychrophiles but those isolated from an old stormbank (site 1) and a sorted circle (site 2) were predominantly psychrotrophic. Oligopsychrophilic taxa accounted for 27% and oligopsychrotrophic for 20% of all the isolated taxa but only from 0.7% to 11.7% and from 1.2% to 6.3% of the total number of cfu (colony forming unit) isolated from an individual site, respectively. The results of the present study suggest that the abundance of fungi in Arctic soil is mostly affected by the content of organic matter in the A horizon and the plant cover, but other factors, such as the stage of soil development and the micro-relief of the surface, are more important for species richness of fungal communities. Key words: Arctic, tundra, filamentous fungi, species richness, ecology.
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