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Tytuł:
Profile variability of lithium content in soils of selected forest ecosystems
Autorzy:
Malczyk, P
Powiązania:
https://bibliotekanauki.pl/articles/1450642.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
total lithium
forest ecosystem
soil profile
soil
lithium content
forest soil
distribution
terrestrial ecosystem
Opis:
The distribution of total lithium content with depth was studied in soils of selected forest ecosystems, with regard to their physicochemical properties and possible anthropogenic impact. The six soil profiles, representing forest soils, were selected for the study: Udipsamments formed from sandr sand, eolian sand and alluvial sand, and Haplorthods Humic formed from eolian sand, Dystrochrepts formed from alluvial silt and Eutrochrepts formed from boulder loam. The total Li content was determined after previously dissolving the samples in a mixture of concentrated acids: hydrofluoric and nitric (HF+HNO3). The content of Li in solutions was determined using the FAS method on PU-9100 X Philips spectrometer. The total lithium content in studied soils under investigations occurs in range of 1.63 to 229.68 mg kg-1 and was considerably lower in organic horizons (1.63-8.07 mg kg-1 ) than in mineral (17.58-229.68 mg kg-1). The concentration of lithium in subhorizons of forest litter increases according to the litter decomposition degree (01<0f<0fh). The Li concentrations found in all forest soils formed from sand were much higher than its natural content in surface mineral horizons of arable soils 1.30-56.00 mg kg-1. The total lithium content in studied soils was negative statistically correlated with the content of organic carbon (-0.6062), silt and clay fraction (-0.7131 and -0.6322), hydrolytic acidity (-0.5222), sum of exchangeable bases (-0.6196) and cation exchange capacity (-0.6277).
Źródło:
Acta Agrophysica; 2001, 50; 189-195
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Soil organic matter properties in Stagnic Luvisols under different land use types
Właściwości materii organicznej w różny sposób użytkowanych gleb płowych stagnoglejowych
Autorzy:
Jonczak, J.
Powiązania:
https://bibliotekanauki.pl/articles/35937.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
soil
organic matter
soil property
Stagnic Luvisol soil
land use type
organic carbon
forest soil
arable soil
Opis:
The aim of the study was an assessment of the influence of land use type on some properties of soil organic matter (SOM) and susceptibility to oxidation of organic carbon in Stagnic Luvisols in the area of the Sławno Plain. Soil samples from humic horizon were taken in five replications from six stands under different land uses – more than 100-year old beech-oak forest (BOF), meadow (M), arable field (AF), fallow (F), post-arable afforestation with 15 year-old birch (SAB) and 30-year-old alder (SAA). Soil samples were analysed for chemical properties with standard methods used in soil science, fractional composition of humus with Shnitzer method, absorbance ratios of 0.01% alkaline solutions of humic acids and suscetibility to oxidation of organic carbon with 0.033, 0.167 and 0.333 mol dm-3 KMn O4 solutions. The data obtained confirm a strong influence of land use type on SOM properties. Especially high differences were observed between forest soils, soils never used for agriculture, and arable or post-arable soils. Contribution of fulvic acids after dacalcification in total organic carbon (TOC) was the highest in the soils of fallow, slightly lower in secondary afforestation with birch and arable field, and much lower in the remaining stands. Some differences were also observed between the stands in the contribution of fulvic and humic acids in TOC. Humic acids predominated over fulvic acids in BOF, AF, F and SAB stands. Absorbance ratios of alkaline solutions of humic acids proves higher maturity of humus in stands under grass vegetation in relation to other stands. The content of KMnO4-oxidisable fractions of organic carbon varied among the stands, especially between forest and arable/post-arable soils. Statistically significant, positive correlation coefficients between the contribution in TOC of the most susceptible to oxidation carbon fraction and light absorbance ratios of alkaline solutions of HA indicate higher susceptibility to oxidation of young humic acids over more mature ones.
Celem badań była ocena wpływu typu użytkowania gleb płowych stagnoglejowych na właściwości ich materii organicznej i podatność na utlenianie węgla organicznego. Badania przeprowadzono w jednym kompleksie gleb na obszarze Równiny Sławieńskiej. Próbki gleb z poziomu próchnicznego pobrano w pięciu powtórzeniach z sześciu w różny sposób użytkowanych stanowisk – ponad 100-letni las bukowo-dębowy (BOF), łąka (M), pole uprawne (AF), ugór (F), zalesienie porolne brzozą w wieku 15 lat (SAB) i porolne zalesienie olchą w wieku 30 lat (SAA). W próbkach oznaczono wybrane właściwości chemiczne stosując standardowe metody wykorzystywane w gleboznawstwie, a ponadto skład frakcyjny próchnicy metodą Shnitzera, absorbancję światła w 0,01% alkalicznych roztworach kwasów huminowych przy długościach fal 280, 465 i 665 nm oraz podatność na utlenianie węgla organicznego w roztworach KMnO4 o stężeniach 0,033, 0,167 i 0,333 mol·dm-3. Uzyskane wyniki potwierdzają silny wpływ charakteru użytkowania na zawartość, zasoby i właściwości materii organicznej gleb. Szczególnie duże różnice obserwowano pomiędzy nigdy nie użytkowanymi rolniczo glebami leśnymi a glebami uprawnymi i leśnymi porolnymi. W glebach leśnych obserwowano wyższe stężenia, ale około 2-krotnie mniejsze zasoby węgla organicznego niż w glebach rolnych i porolnych, które charakteryzowały się obecnością pouprawnego poziomu próchnicznego. Największe różnice pomiędzy stanowiskami obserwowano pod względem udziału w ogólnej zawartości węgla organicznego frakcji kwasów fulwowych wyizolowanych w trakcie dekalcytacji próbek. Największy udział był w glebach ugorowanych, nieco niższy we wtórnie zalesionych brzozą i pola uprawnego, i znacznie niższy na pozostałych stanowiskach. Mniejsze różnice obserwowano pod względem udziału w puli węgla organicznego kwasów fulwowych i kwasów huminowych. Na stanowiskach BOF, AF, F i SAB obserwowano ilościową przewagę kwasów huminowych nad fulwowymi. Współczynniki absorbancji alkalicznych roztworów kwasów huminowych wskazują na większą dojrzałość próchnicy na stanowiskach z diminacją lub znacznym udziałem roślinności trawiastej. Dodatnie, istotne statystycznie współczynniki korelacji pomiędzy udziałem najbardziej podatnych na utlenianie w roztworach KMnO4 frakcji węgla organicznego a wartościami współczynników absorbancji roztworów kwasów huminowych świadczą o większej podatności na utlenianie młodych kwasów huminowych niż bardziej dojrzałych.
Źródło:
Acta Agrophysica; 2013, 20, 4
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:
Characteristics of humic substances in humid subalpine forest soils in Central Taiwan
Autorzy:
Chen, J S
Chiu, C.Y.
Powiązania:
https://bibliotekanauki.pl/articles/1450325.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
subalpine forest
temperature
humic acid
humification
humic substance
soil
Taiwan
ecosystem
forest soil
terrestrial ecosystem
fulvic acid
Opis:
The study site, 2700 m a.s.l., is located in the central Taiwan. A globally rare combination of the mean temperature (ca. 9.5 °C) and total annual precipitation (ca. 4100 mm) makes studies on pedogenic and edaphic processes of the moist soils in this area worthwhile. The study was undertaken to investigate distribution and characteristics of humic substances in this subalpine forest ecosystem. Fulvic acids comprised a higher total organic carbon fraction (1.8 to 25%) than humic acids (1.1 to 13.4%). Fulvic acids were more mobile and migrated downwards to deeper horizons. Comparatively, humic acids were distributed more in the surface horizons. The hu- mification index, based on E4/E6, showed that humification varied in different horizons even in the same profile. The AlogK and RF values indicate that the types of humic acids extracted from Tsuga forest soil are grouped as P or A types, whereas Rp or B types are in Picea forest soil, suggesting a high degree of humification of humic acids in such soils. Features of the absorption spectra were consistent with the classification of humic acids with A logK and RF values. Humification indices and humic acid types in these subalpine soils indicate that they are similar to acidic soils elsewhere with abundant rainfall and cold climate.
Źródło:
Acta Agrophysica; 2001, 50; 41-47
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Trace elements content in soils of the Krzywiczyny Forest Reserve
Autorzy:
Kusza, G
Duzynski, M.
Marcinkowska, E.
Powiązania:
https://bibliotekanauki.pl/articles/1450912.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
manganese
trace element
water quality
air pollution
Namyslow Forest Inspectorate
forest soil
lead
nickel
soil environment
soil
cadmium
Krzywiczyny Forest Reserve
zinc
copper
terrestrial ecosystem
forest
Opis:
The aim of the work was to investigate various soils properties in the partial forest reserve "Krzywiczyny", in the Namysłów Forest Inspectorate (Opole Voivodeship). It was found that upper soil horizons, including organic, humic and illuvial ones, indicated clear accumulation of Mn, Zn, Cu, Pb and Cd. However, a tendency to diminution of these elements content with profile depth was noted. High positive correlation was stated between organic matter content and Mn, Zn, and Cu amounts in the brown leached soils studied.
Źródło:
Acta Agrophysica; 2001, 50; 169-175
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The soil fungi communities of brown forest podzolic soils in two different oak-hornbeam forests of the Zwierzyniecki Park in Bialystok
Autorzy:
Tyszkiewicz, Z
Powiązania:
https://bibliotekanauki.pl/articles/1450887.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
degenerated oak-hornbeam forest
Pinus-Lamniastrum
Polska
brown soil
forest soil
oak-hornbeam forest
podzolic soil
Zwierzyniecki Park
soil fungi
soil
fungi community
Bialystok
grey-brown podzolic soil
terrestrial ecosystem
forest
Tilio-Carpinetum typicum
Opis:
The aim of the studies carried out in the natural oak-hornbeam forest Tilio-Carpinetum typicum and in the degenerated form in the stage of pinetization Pinus-Lamniastrum, was to obtain and compare qualitative-quantitative structures of soil fungi communities in two different oak-hornbeam forests. This degenerated form of oak-hornbeam forest is the result of removing the natural tree population (typical oak-hornbeam forest) and re-afforesting the resultant vacant area with pines. The study plots were located in such a way that the variations of soil fungi communities were affected only by seasonal changes in the vegetation of the degenerated oak-hornbeam forest Pinus-Lamnias- trum. The soils in both study plots are typical forest grey-brown podzolic soils (Luvisols). The results of mycoiogical studies indicate significant differences between soil fungi communities in both oak-hornbeam forests, although similarities especially in species composition of 15 of the most abundant fungi species were also found. The differences are the result of changes in the floral composition of degenerated oak-hornbeam forest. In the past, when typical oak-hornbeam forest covered whole studied areas, the soil fungi communities were probably almost the same in both plots. The first change could have happened after the removal of the trees; the second, after the re-afforestation of the resulting vacant area with pines. The re-appearance of Tilio-Carpinetum typicum in its once occupied habitat causes changes in the soil fungi community in the degenerated oak-hornbeam forest.
Źródło:
Acta Agrophysica; 2001, 50; 235-244
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Soil enzymatic activity in deteriorated forest ecosystems in the operation area of the Pulawy S.A. Nitrogen Factory
Autorzy:
Bielinska, E J
Domzal, H.
Powiązania:
https://bibliotekanauki.pl/articles/1450115.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
Pulawy Forest Inspectorate
forest ecosystem
nitrogen work
enzyme activity
biological property
forest soil
Zyrzyn commune
biochemical property
soil
Pulawy Nitrogen Factory
operation area
forest habitat
soil property
degraded ecosystem
anthropogenic ecosystem
environmental deterioration
Opis:
The present research (1998-1999) was carried out to evaluate soil enzymatic activity in the deteriorated forest ecosystems within the operation range of the Puławy S.A. Nitrogen Factory. Investigation covered podzolic soils from strong and medium forest pollution zones. Objects from the Pulawy Forest Inspectoratejwere represented, i.e. samples from the Puławy district (Inspectorate Wronów) and Żyrzyn district (Inspectorate Zagórki). The obtained results indicate high degree of soil environment deterioration in the investigated forest habitats, in the form suppressed enzymatic activity and deformation of chemical properties. A significant increase in the enzymatic soil activity with the increasing distance from the nitrogen factory was observed. Changes in the activity of soil enzymes were related to the soil chemical properties.
Źródło:
Acta Agrophysica; 2001, 51; 7-13
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Differentiation of chemical properties of forest soils in the range of beech trees [Fagus sp.] under the influence of atmospheric pollution in the Dobrzany Forest Inspectorate of the West Pomerania District
Autorzy:
Raczkowski, B
Powiązania:
https://bibliotekanauki.pl/articles/1449235.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
Pomeranian region
anthropogenic factor
beech tree
chemical property
brown soil
forest soil
soil
soil property
atmospheric pollution
Dobrzany Forest Inspectorate
degraded ecosystem
anthropogenic ecosystem
Fagus
differentiation
Opis:
The author investigated a 0-3 cm layer of two forest brown soils: brown acid and brown leached. These forest soils were under handsome beech trees (Fagus sp.) between 100 and 120 years old. The author compared the chemical properties of the soils. The soil existing near the tree trunk (1 m2 of surface, strongly washed by rain water polluted by chemical substances) and the soil existing under the tree umbrella (40 m2 of surface in the area of the tree-tops, washed poorly by rain water). This comparison showed changes in these properties, dependent upon the degree of atmospheric contamination. It was found that, at the same level of atmospheric contamination, higher changes of properties were found in brown leached soil than in brown acid soil. Less acidified soils (with alkaline or neutral pH reaction) are more suitable in these researches. The investigations of the forest soil layer 0-3 cm (12 soil profiles) showed that changes in their chemical properties in relation to tree trunk-tree umbrella can be the basis of assessment of the degree of atmospheric contamination.
Źródło:
Acta Agrophysica; 2001, 51; 151-157
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Factors affecting forest soil distribution and properties in the river breaks of the Roztocze Region
Autorzy:
Czarnecka, B
Janiec, B.
Powiązania:
https://bibliotekanauki.pl/articles/1450487.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
river valley
forest ecosystem
plant community
hydrological process
ground water
Jelen River
bog-alder forest
forest soil
geomorphological process
mineral soil
Sopot
organic soil
soil
Roztocze macroregion
soil property
terrestrial ecosystem
distribution
Opis:
Studies on the soils in forest ecosystems in breaks of the rivers Jeleń and Sopot were carried out in the years 1997-1998. Although the rivers differ in length, catchment area, amount of water carried and breadth of the valleys, the most important factors affecting soil formation and their spatial differentiation are similar: bedrock, relief, water drainage, natural type of water management, position of the ground water-table relative to the river water level, and chemistry of spring and soil waters. Steep slopes of the valleys covered with poor and highly acidic podzolic soils are usually overgrown with fir and pine phytocenoses, or rarely, with mixed oak-pine forests. The bottoms are often characterised by longitudinal duality of the flood-plain benches. In the drier area close to the river beds under ash-alder forests, there are more fertile gley soils and gley podzols. Poorer and more acidic localities are occupied by mixed forests with spruce. In permanently moist fragments of the benches at the foot of the slopes and in depressions with stagnant water weakly acidic peat-mud and peat soils occur overgrown with bog-alder forests. Peculiarities of these areas are low peat-bogs suspended even up to 4-6 m above the water-table of the river.
Źródło:
Acta Agrophysica; 2001, 50; 81-93
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Diversity of the soil cover in the natural Tilio-Carpinetum stachyetosum in the Bialowieza Forest
Autorzy:
Bialy, K
Powiązania:
https://bibliotekanauki.pl/articles/1450466.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
Tilio-Carpinetum stachyestosum
Bialowieza Forest
soil parameter
physical parameter
biotic factor
soil cover
soil
chemical parameter
soil property
multispecies moist forest
terrestrial ecosystem
forest
Bialowieza National Park
Opis:
Natural variability of pseudogley forest soils in the Białowieża National Park was characterised on the basis of five soil exposures. Two of them were located in a water-logged site, one in a mound one in a patch with dominance of deciduous trees, and one in a spruce biogrup. It was found that pseudogley soils of a natural moist deciduous forest show additional differentiation in the form of characteristic micromosaics. There is a pronounced impact of the species structure in a treestand, uprooted trees and hoofed mammals on the properties of the soil cover. Changes resulting from the above biotic factory were observed in all the analysed physical, physico-chemical and chemical soil parameters.
Źródło:
Acta Agrophysica; 2001, 50; 7-16
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sorption properties of lithogenic soils from non-forest areas of the Tatra National Park
Autorzy:
Niemyska-Lukaszuk, J
Miechowka, A.
Powiązania:
https://bibliotekanauki.pl/articles/1450794.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
organic matter
Tatras Mountains
mountain soil
rendzina soil
Tatra National Park
non-forest area
soil
forest habitat
lithogenic soil
sorption property
biotic element
terrestrial ecosystem
Opis:
Investigations have been carried out on the soil material taken from 46 profiles representing lithogenic soils from non-forest areas of the Tatra National Park. When selecting soil material an altitude above sea level (over 1250 m a.s.l.), a rock parent type (non-calcareous and calcareous) were taken into account, in case of non calcerous soils, the weakly developed soils - rankers were selected. On the basis of the investigetions the following conclusions have been drawn: sorption properties of ectohumus horizons in most of investigated lithogenic soils (rankers and rendzinas) are differ- enciated and formed under the influence of parent rocks. Ectohumus of Oh horizons of rankers sorbed exchangeable cations in following order H+>Ca2+≥Mg2+>K+>Na+. In composition of cations in Oh horizons of rendzinas dominated cations of calcium and the order was as follows: Ca2+>Mg2+>H+>K+≥Na+. In ectohumus of Oh horizons of rendzinas occurring under bilberry heath and pine dwarf and rankers the composition of exchangeable ions as well as a degree of base saturation were close. In investigated soils sorption properties of mineral or organic-mineral horizons AC or ABC, occurring in direct contact with the parent rock, were formed under the influence of lithogenic factor.
Źródło:
Acta Agrophysica; 2001, 50; 207-215
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The structure of the land covering of Zutica Forest, Croatia
Autorzy:
Vrbek, B
Pilas, I.
Powiązania:
https://bibliotekanauki.pl/articles/1450900.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
forest productivity
Croatia
nitrogen
structure
soil type
fertilizer
soil
land cover
soil productivity
Zutica Forest
cadmium
water regime
phosphorus
terrestrial ecosystem
heavy metal
Opis:
This paper presents pedological research in Žutica forest in northern Croatia. The most common soil types found in this area belong to the hydromorphic class (Pseudogley, pseudo- gley-gley, eugley, fluvisol) except technogenic soils formed as a result of intensive oil exploitation. Some main chemical and physical characteristics of soils are given. For forest productivity the most productive combination of soils are hypogley and pseudogley-gleysol and minimal productivity is in heavy amphygleic soils. An increase of heavy metals occurs in flooded soils in Žutica from nearby agricultural land. A high concentration of active phosphorus,and nitrogen can verify the influence of field fertilisers on the forest. Levels of cadmium found in technogenic soils exceed the permitted concentration. A large amount of CaCO3 in relation to natural forest soils can be found in technogenic soils because of quick lime disposal after oil spills and also pH increase and a nutrition and humus decrease.
Źródło:
Acta Agrophysica; 2001, 50; 245-251
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of the bog soil chemical properties on the floral composition of microcenoses in bog forests of the Stare Biele Reserve in the Knyszyn Forest
Autorzy:
Czubaszek, R
Powiązania:
https://bibliotekanauki.pl/articles/1450513.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
microstructure
Stare Biele Reserve
bog soil
floristic composition
chemical property
plant community
bog forest
soil
biotope
microtopography
terrestrial ecosystem
Knyszyn Forest
Opis:
Studies considering hummocks and hollows structure of bog forests were carried out in the Stare Biele Reserve in the Knyszyn Forest. The aim of the study was better recognition of bog forests spatial structure including recognition of soil chemical composition of hummocks and hollows. The bog forest communities in Stare Biele Reserve have various percentage of hummocks. The hummocks have similar morphological structure and are distinctly separated from hollows in all four bog forest communities. Degree of hummocks development and their morphological structure have big impact on plant distribution on their surface. Soil chemical properties are one of the factors, which influence floral abundance and composition of microcenoses. Soil reaction and calcium content, among other measured properties, exert the biggest influence on the floral abundance and composition of microcenoses.
Źródło:
Acta Agrophysica; 2001, 50; 95-104
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Quantity and quality of organic matter in forest and arable soils developed from sand and loess
Autorzy:
Smal, H
Misztal, M.
Ligeza, S.
Dyminska-Wydra, P.
Powiązania:
https://bibliotekanauki.pl/articles/1450660.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
organic matter
ecological condition
soil type
humic substance
loess
organic carbon fraction
arable soil
forest biocenosis
soil constituent
quantity
sand
soil
sandy soil
soil cultivation
quality
terrestrial ecosystem
Opis:
Eight sandy and three loess forest and arable soils taken from the S-E region of Poland were used in the study. The following fractions of C were determined: total organic carbon, fraction soluble in 0.5 mol NaOH dm-3 (humic acids + fulvic acids), humic acids, fulvic acids, fraction soluble in 0.5 mol H2SO4 dm-3 (hemicelluloses) and residue. Quantity and quality of organic matter depended on horizon and soil use. The highest content was shown by fraction of humus acids and residue, whereas the lowest - hemicelluloses fraction. In most soils C ratio of humic to fulvic acids exceeded 1.0. On average, in humus horizons, it was higher in arable than in forest soils and in loess as against sandy soils. In sandy soils, a slightly higher content of humus fraction and lower residue one than in loess soils was found.
Źródło:
Acta Agrophysica; 2001, 50; 225-234
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Content of Cu, Zn and Mn in the eroded soils of a small arable-forest catchment of West Pomerania [The Chojna District]
Autorzy:
Chudecka, J
Powiązania:
https://bibliotekanauki.pl/articles/1449154.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
Pomeranian region
Polska
arable-forest catchment
water erosion
Chojna district
erosion process
geochemical background
soil
soil property
eroded soil
degraded ecosystem
anthropogenic ecosystem
heavy metal
Opis:
The aim of this paper was to assess differentiation in the total content of Cu, Zn and Mn under the influence of water erosion. The present author investigated parent material, eroded soils and delluvial sediments of a small arable-forest catchment of the moraine zone in West Pomerania. The average content of heavy metals in the parent rock (boulder light loam) were assumed as geochemical backgrounds of Cu, Zn and Mn. It was found out that erosion process caused differentiation in heavy metals. Zinc was the most mobile in this transportation; Mn was not sensitive to it. Delluvial sediments from arable (drainage) depressions had a clearly lower content of Cu and Zn than the parent material. It was also noted that Cu and Zn content in the forest area was lower than in the arable area of a similar relief and soil composition. Mn content was always higher in the arable soils. Soil-forming processes influenced differentiation of heavy metals in the vertical soil profile. The humus and Bt horizons (accumulation of silicate clay) were enriched with heavy metals. A decrease of heavy metal content was noticed in the eluvial horizon (Eet - outwash of silicate clay). The humus horizon of the investigated soil had, a natural (not increased) content of Cu, Zn and Mn.
Źródło:
Acta Agrophysica; 2001, 51; 21-28
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 17

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