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    Tytuł:
    Wpływ odnowienia lasu zrębem zupełnym na trofizm gleb rdzawych na przykładzie Nadleśnictwa Spała
    Trophic soil index of the rusty soils affected by clear-cutting in the Spala Forest District
    Autorzy:
    Jamroz, E.
    Weber, J.
    Dębicka, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/990984.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Nadlesnictwo Spala
    drzewostany
    zrab zupelny
    gleby lesne
    gleby rdzawe
    trofizm gleb
    indeks troficzny gleb
    forest soils
    trophic soil index
    forest soil quality
    soil organic carbon
    Opis:
    The paper describes the influence of clear−cutting on the fertility of rusty soils expressed by trophic soil index. Soils in the Spała Forest District (central Poland) were covered by coniferous or mixed coniferous forests. Clear−cutting in acidic and oligotrophic mixed coniferous forests decreased soil fertility and affected an increase of hydrolitic acidity, particularly in Oh and Bv horizons. This type of timber harvest influenced also decrease of organic carbon in the first year after cutting.
    Źródło:
    Sylwan; 2014, 158, 09; 669-674
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ wybranych właściwości gleby na bonitację drzewostanów dębowych w Nadleśnictwie Międzyrzec
    Effect of selected soil properties on site index of oak stands in the Miedzyrzec Forest District
    Autorzy:
    Sacewicz, W.A.
    Bijak, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/985836.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    siedliska lesne
    bonitacja siedliska
    gleby lesne
    wlasciwosci chemiczne
    indeks troficzny gleb
    drzewostany debowe
    Nadlesnictwo Miedzyrzec
    site index
    soil trophic index (sig)
    soil properties
    quercus sp.
    Opis:
    The objective of the study was to determine the impact of selected soil properties on site index of oak (Quercus sp.) stands in the Międzyrzec Forest District (eastern Poland). We utilised data from the soil−habitat survey, which provided information about physical and chemical properties of soils and stand descriptions for 21 oak stands (tab. 1). The collected data served to determine site index (SI), defined as the stand top−height at the age of 100, and soil trophic index (SIG) that is a synthetic measure of the soil fertility. For SI and SIG distributions met the criteria of the normal distribution (Shapiro−Wilk test p−values equalled 0.118 and 0.297, respectively), we applied one−way analysis of variance, t−test and correlation analysis to determine the influence of the forest habitat type and moisture as well as soil properties and fertility measures on the site index of analysed oaks. The SI of investigated oaks ranged from 23.2 to 29.3 m, 26.5 m on average (tab. 2). It was significantly dependent on the site type (F=6.913, p=0.006) with the lowest values on oligotrophic habitat and the highest – on eutrophic one. No effect of habitat moisture content and soil type was found (t=–0.408, p=0.688 and F=2.599, p=0.076, respectively). The SIG values ranged from 20 to 36, with the average of 29.5 (tab. 2). Similarly to the site index, we found significant impact of the forest habitat type (F=5.384, p=0.015) on SIG values. Soil fertility and physical properties significantly influenced site index of the analysed oaks (fig.). We found positive correlation between SI and SIG values (r=0.566, p=0.007) as well as between SI and clay content (r=0.454, p=0.037). Chemical properties of the soils under studied stands seem to have less profound effect on site index of oak. The highest, but insignificant, correlations were found for recalculated acidity (r=–0.420, p=0.056) and magnesium content (r=0.400, p=0.071).
    Źródło:
    Sylwan; 2018, 162, 01; 3-11
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wykorzystanie indeksu trofizmu gleb leśnych do oceny jakościowej wybranych gleb leśnych Gór Bialskich i Złotych
    Application of the forest soil trophism index for determination of the quality of selected forest soils in the Bialskie and Zlote Mountains
    Autorzy:
    Jamroz, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/1009685.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    Indeks Trofizmu Gleb Lesnych
    gleby lesne
    Gory Zlote
    Gory Bialskie
    lesnictwo
    zyznosc gleb
    forest site
    forest soil trophism index
    fertility index
    mountain soils
    Opis:
    Fertility of forest soils in the Bialskie and Złote Mountains is presented in the paper. Forest soil trophism indexes were calculated for mountain coniferous forest (BG), mountain mixed coniferous forest (BMG) and mountain mixed broadleaved forest (LMG). Modification because of the mountain conditions was applied to standard calculation of the index. Analyzed soils from BG sites represented oligotrophic group of soils, soils from BMG were classified as lower mesotrophic and from LMG as medium mesotrophic soils.
    Źródło:
    Sylwan; 2009, 153, 10; 684-688
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Siedliskotwórcze właściwości gleb brunatnych kwaśnych wytworzonych z granitoidów w Górach Stołowych
    Forest habitats on dystric Cambisols developed from granite in the Stolowe Mountains
    Autorzy:
    Gałka, B.
    Podlaska, M.
    Kabała, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/993271.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    Gory Stolowe
    gleby lesne
    gleby brunatne kwasne
    wystepowanie
    morfologia gleb
    wlasciwosci fizykochemiczne
    zasobnosc gleb
    wlasciwosci siedliskotworcze
    Siedliskowy Indeks Glebowy
    granite
    dystric cambisols
    forest habitat
    trophic soil index
    Opis:
    Deep dystric Cambisols developed on the homogenous regoliths of granite in the Stołowe Mountains National Park (SW Poland). In general, the soils have a texture of gravelly sandy loam, apparently silty, the strong acid reaction and the base saturation below 30% throughout the profile (oligotrophic variant). Only the soils developed in lower parts of slopes have a base saturation up to 40−50% or more (oligo−mesotrophic and mesotrophic variants respectively). These soils rich in humus and biologically active create in the low mountain zone the habitats suitable for the mixed mountain forests and, in a less acid variant, for the broadleaf mountain forests. Combined trophic soil index reached the values from 29 to 33 that confirmed mesotrophic type of the forest habitats. Most Cambisols developed from granite in the Stołowe Mountains are currently covered with spruce stands of artificial origin. However, a phytosociological analyses of vegetation carried out in preserved beech stands documented the presence of Luzulo luzuloidis−Fagetum community of poor beech forest that should be considered a potentially natural forest community on these soils and the strategic goal of the forest reconstruction in the national park.
    Źródło:
    Sylwan; 2013, 157, 05; 385-394
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ drzewostanów o zróżnicowanym udziale świerka na gleby różnych typów siedliskowych lasu w Górach Stołowych
    Influence of stands with diversed share of Norway spruce in species structure on soils of various forest habitats in the Stolowe Mountains
    Autorzy:
    Gałka, B.
    Kabała, C.
    Łabaz, B.
    Bogacz, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/990987.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Gory Stolowe
    lasy gorskie
    drzewostany swierkowe
    typy siedliskowe lasu
    gleby lesne
    wlasciwosci fizykochemiczne
    indeks troficzny gleb
    odczyn gleby
    wegiel organiczny
    zawartosc glinu
    Siedliskowy Indeks Glebowy
    ph
    organic carbon
    soil fertility
    forest habitat type
    trophic soil index
    Opis:
    Chemical properties and fertility of soils were compared under spruce, mixed and beech stands in four types of forest habitat (mountain broadleaf forest, mountain mixed broadleaf forest, mountain mixed coniferous forest and mountain coniferous forest) in 373 sites of forest monitoring in the Stołowe Mountains National Park, SW Poland. Soils under the spruce stands had higher organic carbon pools in their upper horizons, but lower pH, increased activity of exchangeable aluminum, lower contents of exchangeable base cations, available potassium and magnesium, resulting finally in lower values of the soil trophic index (SIG). The negative impact of spruce monocultures on the physicochemical soil properties was much stronger in the eutrophic habitats (dedicated to broadleaf forest) than in dystrophic ones. Weak positive effect of the beech introduction on soils in the dystrophic habitats indicated that the conversion of the coniferous into mixed or deciduous stands would not cause a rapid improvement in the physicochemical properties deformed previously under spruce monocultures.
    Źródło:
    Sylwan; 2014, 158, 09; 684-694
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Struktura gleb w wybranych lasach miejskich Wrocławia
    Structure of soils in selected urban forests of Wroclaw
    Autorzy:
    Wacławowicz, R.
    Babelewski, P.
    Pancerz, M.
    Tendziagolska, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/987150.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    lasy miejskie
    Wroclaw
    Las Osobowicki
    Las Redzinski
    Las Mokrzanski
    dab szypulkowy
    Quercus robur
    buk zwyczajny
    Fagus sylvatica
    grab pospolity
    Carpinus betulus
    gleby lesne
    struktura gleb
    wskaznik rozpylenia gleby
    wskaznik zbrylenia gleby
    wskaznik struktury gleby
    srednia wazona srednica agregatow
    wlasciwosci chemiczne
    soil structure index
    cloddinness
    pulverization
    mwda
    chemical properties of soil
    Opis:
    The objective of the research was to assess the soil structure parameters (the index of cloddiness, of pulverization, of soil structure and the mean weighted diameter of soil aggregates – MWDa), as well as the selected chemical soil properties (pH, the content of organic carbon, total nitrogen and available potassium and phosphorus) in the three urban forests in Wrocław (SW Poland) depending on the occurrence of tree species (Quercus robur, Fagus sylvatica, Carpinus betulus). Soil samples were collected under the crown of each tested tree taxons, from three different sites, in three replications, separately in every forest. The soil was taken from two layers: 0−20 cm and 20−40 cm. The structure and weight of mechanically solid soil aggregates were determined using dry separation method. The content of total nitrogen was determined with Kjeldahl method, while phosphorus and potassium – with Egner−Riehm method. Organic carbon was determined with the use of elementary carbon analyser Behr C−50 IRF. The pH was determined by poten− tiometric method in 1M solution of KCl. The results were statistically analysed using the ANOVA. The correlation coefficient between the mean weighted diameter of soil aggregates and the content of organic carbon in the soil was calculated. The tree species occurring in the urban forests of Wrocław affected the soil structure parameters as well as changed the chemical properties of the soil. In both Mokrzański and Rędziński Forests the significantly higher index of soil cloddiness was observed under hornbeam crowns than in the oak and beech surroundings. In the Osobowicki Forest the highest index of cloddiness was determined on the soil with the oak. In general, higher values of index of soil structure and the mean weighted diameter of soil aggregates were noticed for the hornbeam sites than the oak and the beech ones. There was a significant positive corre− lation between the MWDa and the content of soil organic matter (r=0.711, Y=0.4569·x+1.6523). The differences in the content of organic carbon depending on tree species were observed in the Rędziński Forest, while in content of total nitrogen also in the Mokrzański Forest. The highest content of organic carbon and nitrogen was noticed in the soil under the hornbeam. The species of trees affected the content of phosphorus and potassium in the soil, but there was no unambiguous direction of changes.
    Źródło:
    Sylwan; 2017, 161, 07; 592-599
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Liczbowa wycena "jakości" gleb - narzędzie w diagnozowaniu siedlisk leśnych
    Soil quality numerical valorisation - a tool in forest site diagnosis
    Autorzy:
    Brożek, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1015924.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    siedliska lesne
    gleby lesne
    indeks jakosci gleby
    lesnictwo
    siedliskoznawstwo lesne
    numerical valorisation of soils
    index
    soil valorisation
    site valorisation
    Opis:
    The numerical valorisation of soil quality is based on the determination of a set of soil properties adjusted to a given soil function in the ecosystem. The obtaining of an index is based on: determination of soil properties, their conversion into abstract numbers called indicators, index calculation and its practical application. The first proposal of a forest soil quality index was the Forest Soil Trophism Index – ITGL calculated for the soils presented in the Atlas of forest soils in Poland. The calculation of the ITGL was based on the following soil properties: percentage share of very fine sand and coarse silt fraction (Ø 0.1−0.02 mm) and silt and clay particles (Ø <0.02mm), reaction, sum of exchangeable bases and organic matter decomposition degree, content of skeletal parts. Its variability in the forest soils of Poland oscillates between 6.0 and 43.0 and its application in the valorisation of forest sites is multidirectional.
    Źródło:
    Sylwan; 2007, 151, 02; 35-42
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ właściwości gleb piaszczystych na bonitację drzewostanów sosnowych w południowo-zachodniej Polsce. II. Wybrane właściwości chemiczne
    Impact of soil properties on site index class of Scots pine (Pinus sylvestris L.) stands in south-western Poland. II. Some chemical properties
    Autorzy:
    Sewerniak, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/972761.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewostany sosnowe
    bonitacja
    gleby lesne
    gleby piaszczyste
    wlasciwosci chemiczne
    zawartosc wegla organicznego
    zawartosc azotu
    stosunek wegla do azotu
    kationy wymienne
    kompleks sorpcyjny
    kationy zasadowe
    wysycenie kationami
    soil
    pinus sylvestris
    site index
    tree growth
    nutrients
    chemical soil properties
    Opis:
    Impact of some chemical soil properties (OC and Nt content as well as C:N ratio in humus horizon; exchangeable cation stocks and base saturation) on site index class of Scots pine (Pinus sylvestris L.) was analyzed. The study was conducted in 67 plots, separately on sandy soils of different moisture – non−gleyic (51 plots) and gleyic soils (16). For every soil pit, stocks of particular cations were calculated to the five depths: 25, 50, 100, 150 and 200 cm. The distinct positive impact of N, K and Mg on the pine site index was stated. The strong influence of K was assumed to be caused by the strong effect of potassium on water economy of trees. The positive relation between Ca soil stocks and pine growth was also stated, however, the relation was described to be an indirect one. Probably it reflected the stated clear intercorrelation of Ca with K and Mg content. The only element that was determined as negative correlated to the site index was Na, that was especially distinct when topsoil Na stocks were concerned. The negative correlation was presumed to reflect sodium adverse effect on soil structure, that resulted in decreasing water sorption in topsoil and thus caused less favourable site moisture conditions for pine growth. The results showed that when refer to the soil depth, the strength of the correlation between stocks of particular cations and the pine site index was strictly dependent on soil moisture: on non−gleyic soils, on the contrary to gleyic, the correlation strength was directly proportional to soil thickness taking into consideration in statistical analysis.
    Źródło:
    Sylwan; 2012, 156, 07; 518-525
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Bonitacja drzewostanów sosnowych w południowo-zachodniej Polsce w odniesieniu do typów siedliskowych lasu i taksonów gleb
    Site index of Scots pine stands in south-western Poland in relation to forest site types and soil units
    Autorzy:
    Sewerniak, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/991498.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewostany sosnowe
    siedliska lesne
    bonitacja drzewostanow
    typy siedliskowe lasu
    gleby lesne
    warunki wilgotnosciowe
    trofizm gleb
    Polska Poludniowo-Zachodnia
    site index
    pinus sylvestris
    tree growth
    forest site
    soil
    Opis:
    Forming of site index class of Scots pine (Pinus sylvestris L.) stands in relation to forest site types (including their moisture variants) and soil units (type/subtype and also – in minor extent – geological genesis of soil parent material) was investigated. The research was conducted in the Bolesławiec, Głogów and Oława forest districts (SW Poland) in 348 Scots pine stands. The values of the pine site index got higher with increasing fertility of soil units and better forest site type, but only when plots of sandy soils where concerned. Site index was found to differ significantly between fresh than moisture forest sites and soil units. The study results demonstrated that on fresh soils of sandy texture site index of Scots pine was distinctly related even to minor differences of site properties that concerned both its moisture and fertility. Scots pine, by height growth, does not fully utilize the great nutrient retention of fine textured soils that concerned both fresh and moisture pedons. Fine textured soils should be designed for eutrophic broadleaved tree species planting only, which would enable to fully utilize the trophic potential of such soils. The relation between the site index and geological genesis of sand forming parent material of soils was found. The differences in pine growth on sands of other genesis were assumed to be a result of different sorting and mineral composition of these materials.
    Źródło:
    Sylwan; 2013, 157, 07; 516-525
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zróżnicowanie bonitacji wzrostowej drzewostanów daglezjowych w Polsce
    Variability of the site index of Douglas fir stands in Poland
    Autorzy:
    Bijak, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/987057.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewa lesne
    daglezja zielona
    Pseudotsuga menziesii
    drzewostany daglezjowe
    wzrost drzewostanu
    bonitacja wzrostowa
    siedliska lesne
    bonitacja siedliska
    gleby lesne
    rzezba terenu
    Polska
    site index
    soil type
    forest site type
    relief features
    pseudotsuga menziesii
    Opis:
    The objective of the study was to analyse the site index (SI) of Douglas fir (Pseudotsuga menziesii) stands in relation to the forest habitat type, soil type and relief characteristics. We utilised infor− mation available in the Information System of the State Forests in Poland that included selected parameters describing habitat conditions and dendrometric characteristics of Douglas fir stands. In total, processed data referred to 863 stands with a total area of 1,644.45 ha. As the SI distribution was not consistent with the normal one (Shapiro−Wilk test, p <0.0001) we applied Kruskal−Wallis or Mann−Whitney tests to assess the significance of observed differences. Site index of surveyed stands ranged from 19.9 to 47.8 m, 32.6 m on average (standard deviation of 3.3 m). Douglas fir in northern and southern Poland characterized by higher SI than in western and south−western part of the country (HK−W=83.5; p<<0.001; fig. 2). Forest habitat type significantly distinguished analysed stands (HK−W=30.1; p<<0.001). The highest SI values were observed for mixed deciduous habitats (fig. 3). For more fertile fresh deciduous habitats Douglas fir achieved slightly lower site index, while the least fertile mixed coniferous habitats are characterized by significantly lower SI. Habitat moisture variant had no significant effect on the average SI values (HK−W=2.6; p=0.269). The highest values were found in strongly fresh habitats (32.8 ±4.1 m), while the lowest in the humid variant (31.7 ±3.4 m). We found significant influence of soil type (HK−W=23.2, p<0.001) even though the average SI values for each category were relatively similar (fig. 4). The highest values were observed for Cambisols (33.3 ±3.7 m), while the lowest for Arenosols (32.1 ±3.0 m). Particle size distribution is an important factor for Douglas fir site index (tab.). We found that the heavier material (the higher the content of silt and clay), the significantly higher SI values (HK−W=16.9; p=0.001). Mean SI for stands growing on former farmlands (32.0 ±3.3 m) and on forest areas (32.7 ±3.3 m) were not significantly different (ZM−W=1.73; p=0.084). There was no significant effect of the relief forms on site index surveyed Douglas fir stands apart from the fact that stands growing on slopes are characterized by significantly higher SI (ZM−W=1.99; p=0.047).
    Źródło:
    Sylwan; 2017, 161, 03; 208-217
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Genetyczna reaktywność buka zwyczajnego na warunki glebowe
    Genetic response of European beech to soil conditions
    Autorzy:
    Sabor, J.
    Stanuch, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/1011768.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    adaptacja roslin
    lesnictwo
    zawartosc wapnia
    wlasciwosci chemiczne
    gleby lesne
    Regionalny Bank Genow Buka RDLP Katowice
    buk zwyczajny
    przezywalnosc
    wzrost roslin
    proweniencje
    sadzonki
    czynniki siedliska
    RDLP Katowice
    Fagus sylvatica
    drzewa lesne
    soil
    adaptation traits
    beech
    regional bank of genes
    selection index
    calcium
    Opis:
    The paper presents the results of the assessment of the genotype−soil interaction effect on adaptive traits in beech provenances in gene conservation areas of the Regional Bank of Genes (RBG) in the territory administered by the Katowice Regional Directorate of the State Forests. The level of Ca concentrations had no significant effect on survival and growth of beech in the juvenile phase. The interaction effect significantly increased with tree age, while the genotypic effect was less significant. The research confirmed the ecotypic nature of genetic variation in beech.
    Źródło:
    Sylwan; 2009, 153, 08; 507-518
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ujęcie wpływu właściwości gleb piaszczystych na bonitację drzewostanów sosnowych w południowo-zachodniej Polsce w modelach regresji
    Regression models for impact of soil properties on site index class of Scots pine (Pinus sylvestris L.) stands in south-western Poland
    Autorzy:
    Sewerniak, P.
    Piernik, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1008712.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    gleby lesne
    gleby piaszczyste
    uziarnienie gleby
    wlasciwosci chemiczne
    odczyn gleby
    zawartosc azotu
    zawartosc potasu
    zawartosc weglanu wapnia
    poziom prochniczny gleby
    miazszosc
    oglejenie gleby
    drzewostany sosnowe
    bonitacja drzewostanow
    modele regresyjne
    drzewa lesne
    sosna zwyczajna
    Pinus sylvestris
    wzrost roslin
    Polska Poludniowo-Zachodnia
    soil
    pinus sylvestris
    site index
    tree growth
    regression models
    Opis:
    The research was conducted in 268 pine stands on soils of sandy texture. In the paper 6 regression models for site index of Scots pine (Pinus sylvestris L.) were presented. The soil properties enclosed in the models explained to 40−60% of the site index variability. In the regression analyses, the following soil properties were found to be the best variables that described the site index: pHKCl, contents of fine textural fractions, content of K and N, CaCO3 content, soil moisture conditions reflected in gleying occurrence in a soil profile and a thickness of a solum or of a humus horizon (depending on the site moisture). The CaCO3 content was found to be a useful variable for the site index models only unless other chemical soil parameters were available. In such cases occurrence of CaCO3 in models reflects an impact of K and Mg soil content on pine growth that results from strong intercorrelations between Ca, K and Mg contents in the investigated soils. The site index was higher when pine stands were overgrowing gleyic than non−gleyic soils. In the presented regression models the difference was estimated to be about 1.5 m.
    Źródło:
    Sylwan; 2012, 156, 08; 563-571
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-12 z 12

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