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Wyszukujesz frazę "belowground biomass" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Growth, survival, density, biomass partitioning and morphological adaptations of natural regeneration in Fagus sylvatica. A review
Autorzy:
Jarcuska, B
Powiązania:
https://bibliotekanauki.pl/articles/41018.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
beech
Fagus sylvatica
commercial value
natural regeneration
plant growth
plant survival
density
biomass
morphological adaptation
aboveground resource
belowground resource
light
water
competition
Opis:
Beech is an important woody species in terms of ecology, and it also has a considerable commercial value. This fact is also reflected in a high number of scientific papers handling the issue of natural regeneration of this woody plant. The aim of this review is to analyse influence of resources availability and impact of other factors (competition) on height and diameter growth, survival, density, biomass partitioning and morphological adjustment in naturally regenerated beech seedlings and saplings. It pays a particular attention to light – the factor that influences, directly or indirectly, other environmental factors, and consequently, as the key influence on the performance of beech natural regeneration. This contribution includes information about e.g. shade tolerance and mortality-light relationships, ability to increase growth under improved light conditions, dependence of trees growth on their individual size and age etc. In spite of a large number of papers handling the issue of research on beech natural regeneration, growth responses in individual plants are difficult to predict, because the factors involved are numerous. Thus, the process of natural regeneration is in fact interactive, and even retroactive: any change in one of the involved factors induces adjustments of the others.
Źródło:
Dendrobiology; 2009, 61; 3-11
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena żywotności drzew oraz biomasy i morfologii systemów korzeniowych sosny zwyczajnej (Pinus sylvestris L.) wzrastającej na zrekultywowanym składowisku odpadów po flotacji rud cynku i ołowiu
Assessment of tree vitality, biomass and morphology of Scots pine (Pinus sylvestris L.) root systems growing on reclaimed landfill waste after zinc and lead flotation
Autorzy:
Pietrzykowski, M.
Woś, B.
Pająk, M.
Likus-Cieślik, J.
Powiązania:
https://bibliotekanauki.pl/articles/1293705.pdf
Data publikacji:
2017
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
odpady poflotacyjne
skladowiska odpadow
metale ciezkie
skladowisko odpadow poflotacyjnych ZGH Boleslaw
rekultywacja terenow
rekultywacja lesna
tereny zrekultywowane
drzewa lesne
sosna zwyczajna
Pinus sylvestris
zywotnosc drzew
biomasa
system korzeniowy
budowa morfologiczna
reforestation
technosols
stand
belowground biomass
heavy metals
Opis:
The stability of introduced stands depends not only on aboveground but also on the belowground biomass. Results from reclaimed sites often indicate good growth of the aboveground part of stands, but data on the development of root systems are still lacking. Our aim was to assess the vitality of trees, their biomass and the morphology of the root systems of Scots pine (Pinus sylvestris L.) introduced on reclaimed landfill waste after zinc and lead flotation in Bukowno (southern Poland). The landfill site was reclaimed 20 years ago and reclamation treatments involved isolation and covering with mineral substrate layers (110–150 cm thickness) which formed a technogenic soil profile. Four research plots (10×10m) were set up in pure pine stands where soil profiles consisted entirely of flotation waste. Trees on the plots were assayed according to the Kraft and IUFRO classification system. In total, 15 trees of average growth parameters and bio-sociological position (I and II Kraft class) were selected for biomass and root system analyses and the root systems were excavated, washed, measured, weighed and photographed. Our results support pine as a useful species in reforestation of post-mining areas. However, although pine trees were characterized by good vitality, their root systems were shallow and their depth reduced by up to 60 cm due to strong skeletal loamy substrate. Individual root biomass ranged from 1.2 to 9.1 kg and was comparable to pine root biomass on other reclaimed mining sites. This indicates that during restoration, the thickness of the substrate covering the flotation waste should be increased or the amount of skeletal substrate in the top layers of technosol reduced.
Źródło:
Leśne Prace Badawcze; 2017, 78, 4
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Oszacowanie biomasy korzeni w drzewostanach sosnowych Borów Lubuskich
Assessment of the belowground biomass in Scots pine stands of Bory Lubuskie
Autorzy:
Bijak, S.
Zasada, M.
Powiązania:
https://bibliotekanauki.pl/articles/1015889.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
biomasa
drzewostany sosnowe
Bory Lubuskie
szacowanie
korzenie
sosna zwyczajna
lesnictwo
wskaznik R-S
rownania allometryczne
Pinus sylvestris
drzewa lesne
belowground biomass
allometric equations
root to shoot ratio
scots pine
bory lubuskie
Opis:
Paper presents the results of assessment of root biomass in Scots pines from the Bory Lubuskie forests. For an absence of original formulae for that region, allometric equations and root to shoot ratios taken from literature were applied. Average belowground biomass in the analysed stands amounted between 30,062 and 39,819 t/ha depending on the applied method. In general the older the stand as well as the more moist and fertile the habitat were, the higher values of the roots biomass were obtained.
Źródło:
Sylwan; 2007, 151, 12; 21-29
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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