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Wyświetlanie 1-15 z 34
Tytuł:
Influence of soil properties on the aggregate stability of a highly degraded tropical soil in Eastern Nigeria
Autorzy:
Igwe, C.A.
Nwokocha, D.
Powiązania:
https://bibliotekanauki.pl/articles/24896.pdf
Data publikacji:
2005
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
organic matter
soil structure
tropical soil
soil property
highly degraded soil
aggregate stability
permeability
Nigeria
Źródło:
International Agrophysics; 2005, 19, 2
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Heavy metals in the soils from some regions of the Lublin Province
Autorzy:
Mikos-Bielak, M
Powiązania:
https://bibliotekanauki.pl/articles/1449883.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
Lublin region
soil degradation
soil
soil property
degraded ecosystem
anthropogenic ecosystem
heavy metal
Opis:
In the study, the content of heavy metals such as Pb, Cd, Ni, Cu, Zn and Mn in the soils collected from various regions of the Lublin Voivodeship was examined. The examined soils were light medium soils. Content of individual elements was determined by the AAS method in the extracts of 1 M HCl. The analysed soils were poor in copper and manganese. Their concentration and the concentration of lead, cadmium and nickel was in the lower realms of the range natural for light soils formed from sands. Only the content of zinc was fairly high in the above soils, frequently as high as the first degree of contamination.
Źródło:
Acta Agrophysica; 2001, 51; 255-262
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Concentration of heavy metals in the agricultural soils of the Lublin Region and Poland
Autorzy:
Lipinski, W
Terelak, H.
Stuczynski, T.
Powiązania:
https://bibliotekanauki.pl/articles/1448750.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
soil pollution
Polska
soil
concentration
soil property
degraded ecosystem
Lublin region
agricultural soil
anthropogenic ecosystem
heavy metal
Opis:
The paper characterises total concentrations of Cd, Cu, Ni, Pb, Zn in the surface layers (0-20 cm) of agricultural soils in Poland (48620 soils samples) and Lublin region (3829 soil samples). The results for Lublin region are expressed in terms of the degree of metal pollution as compared to contamination in the rest of the country. The average concentration of Cd, Cu, Ni, Pb and Zn (in mg kg-1 of soil) in the A horizon of agricultural soils in Poland and in Lublin region (values in parenthesis) are as follows: 0.21 (0.17); 6.5 (4.9); 6.2 (6.6); 13.6 (10.7); 32.4 (23.3). About 79% of the agricultural soils in Poland are characterised by a natural (0°) content of heavy metals while 17.6% contain elevated level (10) of these metals. In the Lublin region it is 91.9% and 6.7%, respectively. About 3% of the Polish soils (1.4% in the Lublin region) exhibit various degrees of contamination with heavy metals. This includes heavy (IV0) and very heavy pollution (V0) which is found in up to 0.4% of the agricultural land and up to 0.2% in the Lublin region.
Źródło:
Acta Agrophysica; 2001, 51; 243-253
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of criteria of the extent of soil degradation in the vicinity of workings of open cast brown coal mines situated on the central Polish Lowland
Autorzy:
Mocek, A
Owczarzak, W.
Kaczmarek, Z.
Powiązania:
https://bibliotekanauki.pl/articles/1449671.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
brown coal mining
soil degradation
Polska
soil
soil property
degraded ecosystem
vicinity
anthropogenic ecosystem
drainage
lowland
Opis:
In the result of geomechanical transformations associated with the activity of open cast brown coal mining, some changes in air-water relations may occur on arable land adjacent to these regions usually referred to as hvdrological alterations. However, they do not always need to result in soil degradation, i.e. in the deterioration of their production potentials. This will often depend on the distance of fields from the workings, value of the arable land (soil quality class), type of water management, etc. On the basis of long-term studies carried out in the area of operation of two brown coal mines - KWB "Konin" and "Adamów" - on arable land and grasslands of over 60 villages on the total area of 30 thousand hectares it was possible to develop evaluation criteria for the extent of soil degradation and work out principles for compensation payments for farmers. Three zones and appropriate sub-zones of soil susceptibility to drainage were determined and clear and simple criteria for the estimation of the extent of arable land and grassland degradation were worked out. Furthermore, the authors proposed simple and readable systems to calculate compensatory payments to be paid to farmers taking into account the state of soil degradation, value of agricultural land (price of 1 ha of land of appropriate class) and the area of damaged land. The degree of soil degradation, both of arable land and grasslands, ranged from 10 to 30%. In the case of grasslands, additionally, an appropriate sum of money was allocated to compensate for sward recultivation.
Źródło:
Acta Agrophysica; 2001, 51; 131-142
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Heavy metals in the forest soils of the South Podlasie Lowland
Autorzy:
Raczuk, J
Powiązania:
https://bibliotekanauki.pl/articles/1449729.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
anthropogenesis
Podlasie region
soil
lithogenesis
pedogenesis
soil property
forest soil
degraded ecosystem
anthropogenic ecosystem
heavy metal
Opis:
Concentration and profile distribution of heavy metals was investigated as contamination indicators of the forest soils formed from glacial deposits of the South Podlasie Lowland. The study was carried out on thirteen soil profiles situated a hundred meters from the road. The highest content of heavy metals was found in the organic horizons of the investigated soils. The mean content of Mn, Zn, Cu, Pb, Ni, Cr in the investigated soils were: 556.7, 72.9,15.5, 63.5,13.8, 16.5 mg/kg d.m. of the soil, respectively. In the mineral-organic and mineral horizons of the investigated soils heavy metals were present in quantities which were close to natural. The podzol soils, podzols and rusty soils developed from sands contain less heavy metals than the soils lessivés, black earth and deluvial soil. The Mn, Zn, Cu, Pb distribution in the soil profiles is influenced by the soil forming processes. The distribution index of the examined metals distribution in the genetic horizons testify to it.
Źródło:
Acta Agrophysica; 2001, 51; 263-274
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Level of soil pollution by heavy metals in selected orchards of Wielkopolska
Autorzy:
Iwaniszyniec, P
Powiązania:
https://bibliotekanauki.pl/articles/1450069.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
pollution
soil pollution
orchard
Polska
soil
soil property
Wielkopolska region
degraded ecosystem
anthropogenic ecosystem
heavy metal
Opis:
The content of Cd, Pb, Cu, Ni and Cr was analysed in the soil layers of 0-20 and 21-40 cm originating from four fruit growing farms localised in the area of Wielkopolska. The analyses have shown that the content of all the investigated heavy metals both in the arable soil layer and in the subsoil, was lower than their natural content in the Polish soils. The phenomenon of decreasing Cd, Cu and Pb content, and increasing Ni values in the deeper soil layers as compared to the arable layer was observed.
Źródło:
Acta Agrophysica; 2001, 51; 77-84
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The pH changes of the soils formed as a result of reclamation of the sand-pits
Autorzy:
Drab, M
Greinert, H.
Powiązania:
https://bibliotekanauki.pl/articles/1450179.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
Bobr River
agricultural reclamation
pH change
soil
soil acidification
soil property
sandpit
degraded ecosystem
recultivated soil
reclamation
anthropogenic ecosystem
alluvial soil
Opis:
The alluvial soils in the Bóbr river valley, devastated by sand and gravel exploitation, were reclaimed for agricultural use. After reclamation treatment, the newly formed soil was very acid. Application of 5 Mg/ha lime elevated soil pH to 6-7, but during the following years, soil pH dropped again by about one half of the pH unit a year. Rapid drop in the pH level can result both from geological and soil-forming processes. Efficiency of mineral fertilizers applied in various combinations did not give the expected results and the yield of cultivated plants was not satisfactory. Mineral fertilization in various combinations did not result in the expected yield levels.
Źródło:
Acta Agrophysica; 2001, 51; 37-43
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Relations between Pb, Zn, and Cu content in the soil and plants of allotment gardens
Autorzy:
Szymona, J
Sawicki, B.
Powiązania:
https://bibliotekanauki.pl/articles/1450113.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
soil
zinc
soil property
copper
lead
allotment garden
degraded ecosystem
anthropogenic ecosystem
heavy metal
plant
Opis:
Research was carried out in 1998 on the area of 10 allotments situated within the limits of the city of Lublin. Representative soil samples, as well as samples of white cabbage and carrot roots were collected. Content of lead, zinc, and copper were analysed in the samples. On the basis of chemical analysis, it was observed that quantities of lead and zinc were usually higher than average in the same type soils in non-polluted areas. Copper content in the soil did not exceed the average values. The natural content of metals was usually not exceeded in plants. However, samples of white cabbage taken from the "Nasza Zdobycz" and "Sygnał" allotments, where the amount of lead was higher than I mg kg-1 of dry mass were an exception.
Źródło:
Acta Agrophysica; 2001, 51; 159-164
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of platinum ions on the heavy metal ions in loessial soil. Part I: Copper ions
Autorzy:
Bojanowska, M
Jackowska, I.
Powiązania:
https://bibliotekanauki.pl/articles/1449382.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
copper ion
soil
loess
soil property
metal ion
degraded ecosystem
anthropogenic ecosystem
platinum ion
heavy metal
Opis:
Studies on the possibilities of activating heavy metal ions by platinum ions in the soil have been undertaken. The present work gives results of research on the copper ions activated in loessial soil by the treatment with solutions containing platinum ions. Samples of podzolic soil developed from loess were collected from the horizon Ap (0-20 cm). The samples were treated with re-distilled water or with the same quantity of PtCl4 water solutions containing 2, 4, 20 mg of platinum ions. Soil reaction (pH) was measured after 1, 2, 3, 4, 5 and 6 months of incubation at 5 and 20 °C temperature. Copper ion content was determined in the filtrates using the technique of atomic absorption spectrometry. The amount of copper ions activated in the soil material depended on the soil reaction, temperature, quantity of platinum ions introduced and the time duration of the experiment.
Źródło:
Acta Agrophysica; 2001, 51; 181-187
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Balance of heavy metals [Cd, Ni, Pb] in static fertiliser experiments on grasslands
Autorzy:
Curylo, T
Powiązania:
https://bibliotekanauki.pl/articles/1448702.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
grassland
long-term experiment
balance
soil
meadow soil
mineral fertilizer
soil property
degraded ecosystem
anthropogenic ecosystem
agricultural chemistry
heavy metal
Opis:
On the basis of results obtained in 2 static experiments conducted on light and heavy soils with differentiated mineral fertilisation, an approximate balance of Cd, Ni and Pb was determined over 20 years of investigations. The experiments included 3 levels of fertilisers and the control plot. Ammonium nitrate, single or triple superhosphate and potassium salt were used for the treatments. Average amounts ofheavy metals introduced with the fertilisers in both experiments over twenty years were as follows: 37-110 g Cd, 63-195 g Ni and 62-202 g Pb ha-1. The balance ofheavy metals over twenty years assumed different values depending on the fertilisation level and soil conditions. However, irrespective of those factors, the balance assumes a negative value. The effect of nitrogen doses on the balance was slight and depended on the site trophicity. On the other hand, increasing doses of phosphorus and potassium treatment decreased the value of the negative balance difference of cadmium and, to a lesser degree, of nickel, but increased the lead balance.
Źródło:
Acta Agrophysica; 2001, 51; 189-199
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of hard coal fly ash application on chemical composition of forested [formerly arable] rusty soil and Scotch pine needles
Autorzy:
Zablocki, Z
Podlasinska, J.
Powiązania:
https://bibliotekanauki.pl/articles/1449281.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
Scotch pine
needle
chemical property
soil
soil surface
soil property
chemical composition
degraded ecosystem
anthropogenic ecosystem
arable soil
hard coal fly ash
Opis:
The effect of hard coal fly ash applied on surface of forested (formerly arable) rusty soil on chemical composition of soil surface horizons was evaluated in field experiments conducted between the years 1992-1995. The application of fly ash at the dose 15, 30, 60 and 120 t ha-1 on the soil surface caused a decrease of acidity of soil surface layer which was dependent on the fly ash rate. The deacidification of soil lasted only two years. The application of fly ash increased also the content of macro- and microelements in the soil as well as in Scotch pine needles.
Źródło:
Acta Agrophysica; 2001, 51; 171-180
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Concentration of zinc and lead in the soil around a non-ferrous metal smelter KGH Boleslaw in Bukowno near Olkusz
Autorzy:
Palowski, B
Kimsa, T.
Sierka-Koper, E.
Ciepal, R.
Lukasik, I.
Powiązania:
https://bibliotekanauki.pl/articles/1449142.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
lead smelting plant KGH Boleslaw
pollution
soil
concentration
contamination
zinc
soil property
lead
degraded ecosystem
anthropogenic ecosystem
Opis:
The objective of the study was to evaluate zinc and lead contamination in the upper, organic layer of the soil around zinc and lead smelting plant KGH "Bolesław" in Bukowno near Olkusz. The study material were samples of the upper layer (0-5 cm) of the soil collected at the distance of 10, 25, 50, 100 150, 200, 250 m, and further from each of the 250 m up to 3 000 m sections in 8 directions: N, NE, E, SE, S, SW, W, and NW. The most contaminated soil samples were found at the distance of up to about 1 000 m from the subject plant. The most polluted is the NE and SW area. Pollution of the NE area is related to wind direction. The SW area could be a zinc and lead ore outcrop, or else, it was contaminated when used as a dumping ground for the waste from the plant in the past. Heavy pollution of this area with zinc and lead could cause serious damage to living organisms in the area close to the plant.
Źródło:
Acta Agrophysica; 2001, 51; 143-150
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of soil contamination with heavy metal ions on the harmful and useful entomofauna of broad beans
Autorzy:
Jaworska, M
Gospodarek, J.
Powiązania:
https://bibliotekanauki.pl/articles/1449409.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
Aphis fabae
aphidophage
entomofauna
soil
soil property
metal ion
broad bean
degraded ecosystem
pollutant
anthropogenic ecosystem
heavy metal
soil contamination
Opis:
Influence of some selected heavy metals applied into soil as water salt solutions (2 mg Cd, 30 mg Cu, 15 mg Ni, 80 mg Pb and 70 mg Zn/kg soil d.m.) on the growth and development of broad beans and on occurrence of harmful and beneficial insects on the plant was investigated in field conditions. The applied doses of soil contamination with heavy metals strongly affected broad beans development. Plants were characterised by a significantly lower number and length of shoots and a lesser number of pods per plant as compared to the control. Chemical analysis of individual parts of plant revealed big differences in heavy metal contents in roots of plants in contaminated soil as compared to control soil with natural contents of metal ions. In the above ground parts, i.e. leaves and shoots the differences were considerably smaller. Numbers of beetroot aphids were determined on the selected plants since its appearance to the end of its development. Simultaneously, occupation of aphid colony by predators: ladybirds, Syrphidae and Chrysophidae larvae was also assessed. The number of plants occupied by aphids at each plot was also estimated. Aphids on plants in soil with increased metal contents formed more numerous colonies, also the insects invaded a bigger number of plants. Ladybird larvae, predators for aphids, occurred in more numerous colonies on plants in contaminated soil. The numbers of other aphid predators: Syrphidae and Chrysophidae larvae did not reveal statistically significant differences.
Źródło:
Acta Agrophysica; 2001, 51; 91-99
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of various organic fertilisers on the heavy metal fractions in the soil. Part 3. Zinc, manganese and iron
Autorzy:
Filipek-Mazur, B
Gondek, K.
Powiązania:
https://bibliotekanauki.pl/articles/1449514.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
iron
manganese
chemical extraction
soil
organic material
zinc
soil property
degraded ecosystem
anthropogenic ecosystem
organic fertilizer
heavy metal
Opis:
The paper presents distribution of zinc, manganese and iron in fractions of soil treated with tannery sludge and compost of tannery sludge and peat, and, for the sake of comparison, the soil from a plot treated with farmyard manure (FYM), and mineral fertilisers. Total soil contents of zinc ranged from 38.0 to 47.3 mg kg-1 of soil. The share of mobile zinc forms ranged between 6.05-7.93%. Percentage of the exchangeable form was between 5.8-7.5% of the total Zn contents, while the share of forms bound with organic matter ranged between 10.7 and 12.7%. A considerable part of zinc was bound with manganese and iron oxides. Between 30.14- 43.72% of Zn were found in the residual form. Organic and mineral treatment influenced the share of easily soluble manganese compounds. It ranged between 15.6-19.7%. The least of manganese (1.0-2.0%) occurred in the compounds with crystalline iron oxides. The exchangeable form constituted between 3.4-4.2%, organic fraction accumulated slightly more. Manganese oxides retained the most of the element. Trace amounts of iron were revealed in the first three fractions. The biggest part of this metal was found in sparingly soluble compounds, mainly oxides (over 40%) and on residual fraction (over 30%).
Źródło:
Acta Agrophysica; 2001, 51; 215-220
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microelement contents in arable soils of the Upper Silesia
Autorzy:
Jasiewicz, C
Sendor, R.
Powiązania:
https://bibliotekanauki.pl/articles/1450107.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
manganese
iron
arable soil
Upper Silesian region
extraction
microelement
soil
content
soil property
zinc
copper
degraded ecosystem
anthropogenic ecosystem
agricultural chemistry
Opis:
In the present paper arable soils of the Upper Silesia were evaluated as to copper, zinc, manganese and iron contents, determined in the same extract, i.e. 1 M dm-3 HCl. The studies comprised 20 points in the vicinity of Sosnowiec and 20 points from near Zawiercie. Soil abundance in the available forms of microelements was assessed on the basis of the limiting numbers suggested by the Institute of Soil Science and Plant Cultivation. Soils of Zawiercie and Sosnowiec belonged to those with high contents of zinc in all the cases; in the majority of objects these were the soils with medium contents of copper and manganese. In half of the cases, the soils were classified as possessing low iron content, and in the remaining half as having medium iron content.
Źródło:
Acta Agrophysica; 2001, 51; 231-235
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 34

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