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Wyszukujesz frazę "humus type" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Właściwości gleby pod okapem czterech gatunków drzew leśnych po 30 latach od ich posadzenia na dwóch różnych siedliskach
Soil properties under the canopy of four forest tree species 30 years after planting on two different forest sites
Autorzy:
Mroziński, P.
Modrzyński, J.
Powiązania:
https://bibliotekanauki.pl/articles/1018330.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
siedliska lesne
Larix decidua
Quercus robur
wlasciwosci fizyczne
daglezja zielona
lesnictwo
Picea abies
dab szypulkowy
bor mieszany swiezy
modrzew europejski
wlasciwosci chemiczne
gleby lesne
Pseudotsuga menziesii
las mieszany swiezy
drzewa lesne
swierk pospolity
forest trees
humus type
soil properties
site fertility
central europe
Opis:
The main objective of this study was to demonstrate a relationship between the direction and effectiveness of impact of particular tree species on soil properties and the initial site fertility. The studies were conducted on two neighbouring experimental plots with different forest site types (fresh mixed coniferous forest – BMśw and fresh mixed deciduous forest – LMśw). The analysed species Norway spruce (Picea abies L. Karst.), European larch (Larix deciduas Mill.), Douglas fir (Pseudotsuga menziesii Franco) and penduculate oak (Quercus robur L.) were planted in three replications on 400 m2 plots. It was stated that: 1) the humification processes ongoing under the canopy of the analysed tree species are, to a large degree, determined by the type of forest site; 2) under the same tree species the content of calcium and nitrogen in the nitrate form was found to by markedly lower in the BMśw forest site; 3) in the BMśw forest site, the pH and electrolytic conductivity of the soil under the majority of the analysed tree species were lower; 4) the degrading impact of coniferous species on soil was noticeably stronger on the poorer BMśw forest site.
Źródło:
Sylwan; 2006, 150, 08; 26-37
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of the soil type on the molecular structure, properties and conditions of occurrence of humous acids
Autorzy:
Ksiezopolska, A
Powiązania:
https://bibliotekanauki.pl/articles/1401881.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
beta-humus
humic acid
soil type
soil condition
soil property
molecular structure
fulvic acid
Opis:
The study presented here concentrates on the characteristics of the humous compounds of humic and fulvic acid fractions of ß-humus, originating from the typologically differentiated soils (podzolic soil and chernozem). The soils were chosen so as to emphasize differences between chemical structure and degree of aromatic nucleus condensation in the humous acids isolated from them. It was found that the structure of the humous substances isolated from the podzolic soil is characterised by the lowest degree of condensation of the aromatic nucleus and the lowest polymerisation, while the humous acids from the chernozem are characterised by the highest degree of condensation of the aromatic nucleus and the strongest polymerisation.
Źródło:
Acta Agrophysica; 2000, 35
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rate of humus accumulation on anthropic protosol from the Capus-Cluj District
Autorzy:
Blaga, G
Bunescu, V.
Rauta, C.
Dumitru, M.
Lacatusu, R.
Vidican, R.
Lechintan, T.
Gamet, E.
Clapa, D.
Powiązania:
https://bibliotekanauki.pl/articles/1450112.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
organic matter
surface mining
rock type
accumulation
deposit exploitation
climate
recultivation
soil
humus
soil property
Capos-Cluj District
degraded ecosystem
anthropogenic ecosystem
relief condition
Opis:
The paper presents data on the annual rate of humus accumulation after 10 and 20 years of a strict experimental routine carried out on sterile waste dumps (anthropic protosol) from Cápuş, cultivated with maize, oat and esparcet. Basic dressing applied was the following: V1 - unfertilized, V2- 40 t/ha manure, V3 - 15 t/ha poultry manure, V4 - 40 t/ha manure + N100 P60 K40 , V5 - 15 t/ha poultry manure + N100 P60 K40 , V6 - N100 P60 K0 , V7 - N100 P60 K40, V8 - N200 P120 K80 , V9 - N300 P180 K120. The results obtained revealed that the variant with 40 t/ha manure + N100 P6O K40 (V4) after 10 years accumulated 1.724% humus and after 20 years 4.100% humus. It means that the annual average rate was 0.115% and 0.176%, respectively, at a depth of 0-20 cm. The next variant is the variant with 15 t/ha poultry manure + N100 P60 K40 (V5) where 1.207% of humus was accumulated after 10 years and 3.760% of humus after 20 years; the annual average rate 0.055% and 0.155%, respectively.
Źródło:
Acta Agrophysica; 2001, 51; 15-19
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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