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    Tytuł:
    Wpływ suszy na ściółkowo-glebowe zgrupowania skoczogonków (Collembola, Hexapoda) w lesie mieszanym
    Influence of drought on epigeic soil collembolan communities (Hexapoda) of moderately humid mixed deciduous forest
    Autorzy:
    Sławska, M.
    Sławski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/987116.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    lasy mieszane
    sciolka lesna
    gleby lesne
    owady
    skoczogonki
    Collembola
    zgrupowania zwierzat
    bogactwo gatunkowe
    liczebnosc
    czynniki klimatyczne
    susza
    wysokie temperatury
    niedobor opadow
    soil fauna
    mature forest
    young plantation
    precipitation paucity
    indicator species
    Opis:
    The resilience of forest ecosystems to climate changes such as elevated temperature and frequent drought episodes, strongly depends on how the soil subsystems and its inhabitants responds to these perturbation. The epigeic soil Collembola communities of mature mixed deciduous forest and adjacent young plantation on moderately humid soil were compared in two consecutive years, out of which the second one was marked by significant deficiency of precipitation in growing− −season. The study plots were established on the area of experimental forests of Warsaw University of Life Science−SGGW in Rogów (central Poland). The objectives of the study was to assess the sensitivity of forest Collembola communities to drought stress and to check if the reaction depends on stand age. We also aimed to test if an indicator species of climate changes can be appointed. The results showed that three months drought episode had negative impact on forest Collembola communities of mature stands, while communities of young plantation were not affected. The reduction of total abundance of Collembola and clear changes in communities structure in mature stand was detected in the year of lower precipitation. The Collembola communities of young plantation were also significantly transformed, but in result of clear cutting and soil preparation. Therefore, the successional changes were the most evident process in these communities and there were no signs of drought influence. Among the most numerous species in Collembola communities of mature forest Isotomiella minor was appointed as an indicator of drought, because its abundance was drastically reduced in the year of lower precipitation. The small number of specimen of this species in young plantation may also prove its sensitivity to deficiency of humidity in soil. The significantly negative response to drought episode was documented also for Psuedosinella horaki, Micraphorura absoloni and Megalothorax minimus. Our study provided strong evidence that the drought, which lasted only three months, had a detrimental effect on forest Collembola commu− nities.
    Źródło:
    Sylwan; 2017, 161, 01; 71-80
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Soil organic carbon physical fractions and aggregate stability influenced by land use in humid region of northern Iran
    Autorzy:
    Ayoubi, S.
    Mirbagheri, Z.
    Mosaddeghi, M.R.
    Powiązania:
    https://bibliotekanauki.pl/articles/2082913.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    Hyrcanian forest
    tea plantation
    paddy rice
    complexed organic carbon
    Opis:
    The present study was executed in order to examine the influences of land use change on aggregate stability and soil organic carbon fractions in the humid region of the north of Iran. The study area featured three land uses which included natural Hyrcanian forest, tea plantation and paddy rice cultivation. One hundred soil samples were taken from the 0-10 cm layer in a grid pattern to allow for variations in the study area as much as possible in summer 2016. The results revealed that land use change significantly altered the physical and chemical characteristics of the soil, as the highest values of soil organic carbon and complexed organic carbon, and the lowest values of pH, calcium carbonate equivalent and bulk density, were observed in the natural forest. The greatest percentage of macro-aggregates was found in the natural forest followed by the tea plantation. Particulate organic carbon and soil organic carbon associated with clay and silt particles as well as soil organic carbon associated with all aggregate fractions showed the following trend: natural forest > tea plantation > rice cultivation. Overall, our results confirmed the importance of forest soils in C sequestration and the vital role played by soil organic carbon in soils to improve soil quality indicators and aggregation.
    Źródło:
    International Agrophysics; 2020, 34, 3; 343-353
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Potencjalne możliwości wykorzystania biomasy drzewnej do celów energetycznych
    The potential opportunities for using wood biomass in energy production
    Autorzy:
    Parzych, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1311555.pdf
    Data publikacji:
    2015
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    odnawialne zrodla energii
    biopaliwa
    biomasa drzewna
    odpady drzewne
    drewno opalowe
    wykorzystanie energetyczne
    bioenergy
    fuelwood
    forest residues
    energy plantation
    Opis:
    This paper presents results of a meta-analysis on the theoretical and economic aspects of using wood biomass for the production of energy in Poland. The source data used in the analyses were obtained from various official sources and statistics as well as previously published scientific studies. The results lead to the conclusion that the wood biomass supplied for energy production in the year 2012 amounted to a total of 18 million cubic meters, of which forestry supplied 6.8 million m3, the wood industry 6.5 million m3 and public utilities provided 4.5 million m3.
    Źródło:
    Leśne Prace Badawcze; 2015, 76, 3; 256-264
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Near-natural methods of forest regeneration
    Autorzy:
    Mauer, O
    Powiązania:
    https://bibliotekanauki.pl/articles/41324.pdf
    Data publikacji:
    2004
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    Norway spruce
    Picea abies
    artificial regeneration
    plantation
    mountain forest stand
    forest regeneration
    regeneration method
    technological procedure
    Opis:
    The study examines the factors involved in the successful artificial regeneration of Norway spruce Picea abies (L.) Karst. by plantation or sowing in wood left behind in mountain forest stands. The issues studied are as follows: regeneration in stumps,trunks and disks (logs); regeneration in wood at various stages of decomposition; regeneration under the stand canopy and on clearings. The work brings a description of technological procedures to ensure success of this regeneration method.
    Źródło:
    Dendrobiology; 2004, 51 Supplement
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mycological monitoring in the Hungarian Biodiversity Monitoring System
    Autorzy:
    Pal-Fam, F.
    Siller, I.
    Fodor, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/67278.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    mycology
    monitoring
    Hungarian Biodiversity Monitoring System
    macromycete
    fungal monitoring
    forest reserve
    plantation
    fungi
    Opis:
    The results of a mycological monitoring, carried out from 2001 until 2003 in two forest reserves (in the Bükk and the mecsek mountains) within the frame of a project of the Hungarian Biodiversity monitoring System (HBmS) aiming to monitor forest reserves and managed forests, are presented. Standard sampling method had to be developed and methods of data analysis (a so-called protocol) had to be elaborated for monitoring activities
    Źródło:
    Acta Mycologica; 2007, 42, 1
    0001-625X
    2353-074X
    Pojawia się w:
    Acta Mycologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Links between root carbohydrates and seasonal pattern of soil microbial activity of diverse European populations of Pinus sylvestris grown in a provenance plantation
    Autorzy:
    Kieliszewska-Rokicka, B
    Oleksyn, J.
    Zytkowiak, R.
    Reich, P.B.
    Powiązania:
    https://bibliotekanauki.pl/articles/56717.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    Scotch pine
    soil dehydrogenase
    Polska
    microbial activity
    forest stand
    European population
    carbohydrate
    soluble carbohydrate
    population
    soil microorganism
    root
    mineral soil
    starch
    seasonal pattern
    soil
    Pinus sylvestris
    plantation
    dehydrogenase activity
    aboveground biomass
    Opis:
    Activity of soil dehydrogenase (DHA) was measured in the mineral soil in a forest stand of 15 to 16-year-old Scots pine (Pinus sylvestris L.) from geographically diverse populations, as an indicator of biological activity of soil microorganisms, in a provenance experiment in Poland. The pine populations originated from six European countries (Sweden, Russia, Latvia, Poland, Germany, France) and differed widely in aboveground biomass and productivity. Soil DHA during two growing seasons showed pronounced seasonal variability, which was significantly related to the fine root concentration of nonstructural carbohydrates. Higher DHA was found in soil under canopies of the central and southern European populations than in those from more northern parts of the Scots pine range. Significant positive correlation between soil DHA and aboveground tree biomass suggest that these patterns most likely resulted from differences in carbon dynamics and productivity among populations.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2003, 72, 2
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Forest plantation productivity - soil interactions within Western Forest-Steppe of Ukraine: effects of pH and cations
    Autorzy:
    Raspopina, Svitlana
    Debryniuk, Yuriy
    Hayda, Yuriy
    Powiązania:
    https://bibliotekanauki.pl/articles/2041494.pdf
    Data publikacji:
    2020
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    forest plantation
    larch
    spruce
    oak
    potential acidity
    absorbed bases
    movable aluminium
    Opis:
    Dark grey podzolized soils on the loess like loams, which are represented in the soil cover within fresh and humidity gradients in the Western Forest Steppe of Ukraine, are characterized by high forest vegetation potential, which ensure the formation of mostly pure and mixed larch and spruce stands with high level of the productivity. Despite the fact that both species are coniferous, their effect on the soil, in particular, on its acid-base indicators (actual and potential forms of acidity, sum of absorbed bases, degree of saturation of bases, content of mobile aluminium), which are important components of soil fertility, are specific. Due to the fact that there is a close interaction between forest plantations and soil properties, changing the participation of species in the stand, it is possible to adjust the actual soil fertility. The soils under both pure and mixed spruce and larch stands are characterized by a high level of potential acidity that reaches the high acidic values in the upper horizons. A similar reaction of soil solution under coniferous forests is caused by acid hydrolysis of aluminosilicates and accumulation of mobile Al in the rhizosphere zone. Simultaneously, the same acidic characteristics, including the presence of movable aluminium, are also found in soils under broadleaved plantations. In general, acid-exchange properties of soils (high potential acidity, unsaturation of bases and availability of movable aluminium) traditionally are considered as unfavourable for vegetation. However, our researches refute it and prove that within certain values, these indicators do not limit the productivity of pure and mixed spruce and larch stands.
    Źródło:
    Folia Forestalia Polonica. Series A . Forestry; 2020, 62, 4; 233-245
    0071-6677
    Pojawia się w:
    Folia Forestalia Polonica. Series A . Forestry
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effects of slow-release fertilizers of Silvamix and Silvagen line on growth of a young spruce and larch forest plantation three years after application
    Autorzy:
    Stofko, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/38627.pdf
    Data publikacji:
    2010
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    fertilizer
    Silvamix fertilizer
    Silvagen fertilizer
    plant growth
    young plant
    spruce forest
    larch forest
    forest plantation
    fertilizer application
    Opis:
    This work evaluates effects of tablet fertilizers Silvamix, Silvamix Mg and Silvagen on height and diameter growth of a young plantation of Norway spruce [Picea abies (L.) Karst.] and European larch (Larix decidua Mill.) after the third year of fertilizer application. The experiment was conducted on one experimental plot in the Low Tatra Mountains. The fertilizers were applied at a rate five tablets (50 g) per each tree, considering not treated trees as the control. The tablets were laid on the ground and thoroughly trodden into soil. ANOVA analysis did not reveal any significant effects of fertilizers on height and diameter growth of Norway spruce trees. The use of Silvagen resulted in significant effects on height growth of larch trees.
    Źródło:
    Folia Forestalia Polonica. Series A . Forestry; 2010, 52, 1
    0071-6677
    Pojawia się w:
    Folia Forestalia Polonica. Series A . Forestry
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of soil liming on European beech (Fagus sylvatica L.) and sycamore maple (Acer pseudoplatanus L.) plantations
    Autorzy:
    Balcar, V.
    Kacalek, D.
    Kunes, I.
    Dusek, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/38728.pdf
    Data publikacji:
    2011
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    soil liming
    European beech
    Fagus sylvatica
    sycamore maple zob.sycamore
    sycamore
    Acer pseudoplatanus
    plantation
    forest decline
    soil amelioration
    Opis:
    Support of European beech (Fagus sylvatica L.) and sycamore maple (Acer pseudoplatanus L.) plantations by amelioration has been tested in air-polluted sites in the mountains since 1993. The research locality is a site with humic podzol soils at an altitude of 960 m a.s.l. Dolomitic limestone (1 kg per tree) was mixed with soil used for planting tree seedlings. According to the results of a 15-year investigation (1993– 2008), liming had a positive effect on beech tree growth, while the positive effect of liming on tree growth was temporary in the case of sycamores. Ca content was higher in the limed beech plantations throughout the observation period. Soil analyses (sampled in 2002) showed that the application of dolomitic limestone influenced soil conditions markedly in terms of increased pH. The pH values measured in H2O increased from 4.9 to 6.2 for beeches and from 4.3 to 6.1 for sycamores.
    Źródło:
    Folia Forestalia Polonica. Series A . Forestry; 2011, 53, 2
    0071-6677
    Pojawia się w:
    Folia Forestalia Polonica. Series A . Forestry
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dynamics of non-structural carbohydrates in Pinus pallasiana D. Don needles under different forest growth conditions of ravine anti-erosion plantations
    Autorzy:
    Bessonova, V.
    Yakovlieva-Nosar, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/2106662.pdf
    Data publikacji:
    2022
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    ravine
    man-made plantation
    Crimean pine
    Pinus pallasiana
    forest
    growth condition
    sugar
    starch
    Opis:
    The research was aimed at analysing the peculiarities of non-structural carbohydrate metabolism in the needles of Pinus pallasiana D. Don in anti-erosion plantations on the slope and in the thalweg of the Viyskovyi ravine under different forest growth conditions. The ravine is located in the Dnipropetrovsk region and belongs to the southern geographical variant of ravine forests. The studied plants grew at three experimental sites of man-made plantation: in the thalweg (forest growth conditions – mesophilic, fresh, CL2), in the middle part of the slope of the southern exposure (mesoxerophilic, somewhat dry, or semi-arid, CL1) and on the upper part of this slope (xerophilic, arid, CL0–1). Changes in glucose, fructose, reducing sugars, sucrose and starch during the period from May to October were studied. The concentration of osmotically active substances (glucose, sucrose) increases in the months with the most unfavourable hydrothermal parameters, especially in plants of mesoxerophilic and xerophilic forest growth conditions. The dynamics of fructose content revealed two maxima (July and October), when the concentration of glucose tends to increase steadily, with the highest values found in October. During the study period, the level of fructose in the needles under the arid conditions of the upper and middle parts of the slope was much lower than under the fresh conditions of the thalweg. The dynamics curve of the starch content tends to decrease from the maximum values in May to the first minimum in August. It is followed by some increase in the concentration of this polysaccharide that does not reach the previous values. The second minimum is registered in October. Such changes in the level of starch in the needles of plants are observed under all forest growth conditions. The decrease in polysaccharide content is consistent with the increase in glucose and sucrose, especially in August. A more significant increase in the concentration of soluble osmoprotective sugars (glucose, sucrose) in P. pallasiana needles under unfavourable hydrothermal conditions compared to normal moisture conditions indicates the ability of plants to adapt to mesoxerophilic and xerophilic conditions.
    Źródło:
    Folia Forestalia Polonica. Series A . Forestry; 2022, 64, 1; 38-48
    0071-6677
    Pojawia się w:
    Folia Forestalia Polonica. Series A . Forestry
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Biomass partition and carbon storage of Cunninghamia lanceolata chronosequence plantations in Dabie Mountains in East China
    Autorzy:
    Xie, X.
    Cui, J.
    Shi, W.
    Liu, X.
    Tao, X.
    Wang, Q.
    Xu, X.N.
    Powiązania:
    https://bibliotekanauki.pl/articles/41359.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    biomass
    carbon storage
    Cunninghamia lanceolata
    Chinese fir
    chronosequence
    plantation forest
    Dabie Mountains
    China
    Opis:
    The quantification of biomass carbon pools is important for understanding carbon cycling in forest ecosystems. This study was designed to reveal the effects of stand age on biomass partitioning and carbon storage of Chinese fir plantation stands in Dabie Mountains of Anhui, East China. A total of six even-aged Chinese fir plantation stands along an age-sequence from 10 to 50 years were selected. To quantify the biomass of different tree components, 18 trees with diameter at breast height (D1.3) from 6.5 to 35.2 cm were harvested from the different aged stands. Biomasses of understory vegetation, forest floor and standing dead trees were also investigated. Total biomass carbon storages ranged from 57.6 to 211.4 Mg ha–1 in the different aged stands. Tree layer comprised from 93.7% to 96.4% of the total biomass C pools in the different aged stands. The C pools of the necromass were from 1.8 to 6.2 Mg ha–1. Stand age had a significant effect on tree biomass partitioning, with an increase in proportion of root biomass. The root/shoot ratios were from 0.187 to 0.312, which was significantly positively correlated to stand age. The existing plantation stands are still developing and have somewhat high rate of biomass and carbon accumulations beyond the normal rotation period (usually 25–30 years) even over an age of 50 years. Appropriate prolongation of the rotation period of Chinese fir plantation will be effective in maintaining long-term productivity and providing large carbon sink. The measurements provide valuable data for modelling productivity of Chinese fir plantation forest.
    Źródło:
    Dendrobiology; 2016, 76
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Beetles (Coleoptera) occurring on hazel (Corylus L.) in different habitat conditions
    Autorzy:
    Gantner, M.
    Jaśkiewicz, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/11347086.pdf
    Data publikacji:
    2002
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    hazel
    weevil
    Curculionidae
    beetle
    hazelnut
    Corylus
    hazel shrub
    protected plantation
    hazelnut plantation
    Coleoptera
    forest
    Curculio nucum
    habitat condition
    unprotected plantation
    Opis:
    The aim of the study was to recognise the species composition of beetles (Coleoptera) population occurring on hazel shrubs. Three-year studies were carried out on three ecosystems: on the cultivated hazelnut plantation, on an unprotected one and on shrubs of common hazel in the forest. The presence of 63 species was detected. The smallest number of species (22) and individuals (535) was noted in the protected plantation and the highest number in an unprotected one (46 species and 2787 individuals). In the forest the presence of 46 species and 1317 individuals was observed. The dominant species among beetles on hazel plantation in south-eastern Poland are from weevils’ family (Curculionidae). Curculio nucum and leaf-eaters from Phyllobius sp. genus were most often collected. The remaining species that were observed are non-economic pests of hazelnut, but giving up suitable chemical pest control and horticultural treatment results in an increase of their number. At that situation the number of species characteristic of common hazel growing in the forest increased on large-fruited hazel too. The species composition, number, dominance and the topic and trophic groups of Coleoptera adults are given in this paper.
    Badania dotyczące występowania chrząszczy (Coleoptera) na leszczynie (Corylus L.) prowadzono w trzech obiektach różniących się intensywnością użytkowania i warunkami siedliskowymi. Były to: plantacja leszczyny chronionej przed szkodnikami, plantacja leszczyny nie chronionej oraz krzewy leszczyny leśnej. W ciągu trzech lat badań zebrano ogółem 4639 osobników należących do 63 gatunków i 35 rodzajów. Warunki siedliskowe kształtowały skład gatunkowy i liczebność chrząszczy. Najmniej gatunków (22) i osobników (535) odłowiono na plantacji chronionej, a najwięcej (46 gat. i 2787 osobn.) zebrano na plantacji prowadzonej ekstensywnie. Entomofauna chrząszczy w środowisku leśnym charakteryzowała się zbliżonym zestawem gatunków (45) i mniejszą w porównaniu z plantacją nie chronioną liczbą osobników (1317). Na plantacjach leszczyny w południowo-wschodniej Polsce dominującymi okazały się gatunki z rodziny ryjkowców (Curculionidae). Do chrząszczy najliczniej odławianych należały gatunki arborealne, a mianowicie Curculio nucum oraz liściojady z rodzaju Phyllobius sp. Pozostałe gatunki stwierdzonych chrząszczy należy zaliczyć do szkodników nie mających znaczenia gospodarczego na plantacjach produkcyjnych leszczyny wielkoowocowej. Dopiero zaniechanie zabiegów uprawowych i pielęgnacyjnych prowadzi nie tylko do wzrostu ich liczebności, ale również do gradacyjnych pojawów gatunków charakterystycznych dla leszczyny pospolitej rosnącej w lesie.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2002, 01, 1; 55-66
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Application of sheep wool in preventing damage caused by deer in young forest plantations
    Wykorzystanie wełny owczej w zapobieganiu szkód wyrządzanych przez jeleniowate w uprawach leśnych
    Autorzy:
    Bernacka, H.
    Swiecicka, N.
    Naworska, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/44828.pdf
    Data publikacji:
    2015
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    forest plantation
    young tree
    sheep wool
    application
    prevention
    deer
    repellent
    Źródło:
    Acta Scientiarum Polonorum. Zootechnica; 2015, 14, 4
    1644-0714
    Pojawia się w:
    Acta Scientiarum Polonorum. Zootechnica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ancient woodland plant species in a landscape park in Central Poland
    Autorzy:
    Jakubowska-Gabara, J
    Mitka, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/57497.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    plantation forest
    landscape park
    Polska
    plant species
    ancient woodland indicator
    species protection
    Braun-Blanquet method
    Central Poland
    plant ecology
    Opis:
    A numerical analysis of the phytosociological relevés from ancient and recent woodland on a mesic forest site in central Poland was carried out. Three groups of forest stands were recognised: planted with Pinus, recent and ancient oak-hornbeam Tilio-Carpinetum. The species of ancient woodland occurred mainly in ancient oak-hornbeam forest stands, however some ferns: Dryopteris carthusiana, D. dilatata and D. filix-mas, and an orchid species Epipactis helleborine, are to be found mainly or exclusively in recent forests. The occurrence of ancient forest species in recent woods may be putatively explained by long-distance wind dispersal or by the thriving in situ in unrecognised small wood patches. Twelve ancient woodland indicators (i.e. 36% of a total number found in the region under study) occur exclusively in ancient woodland. It underlines the role of passive species protection in the maintenance of the regional species diversity.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2007, 76, 3
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Above and Below-Ground Decomposition of Leaf Litter in Leucaena leucocaephala Plantation of Federal University of Agriculture, Abeokuta (FUNAAB), Nigeria
    Autorzy:
    Oladoye, A. O.
    Oyebamiji, N. A.
    Ayoku, Y. B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1077278.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Forest plantation
    Leucaena leucocaephala
    ground level
    leaf litter
    mass loss
    nutrient contents
    release pattern
    Opis:
    A decomposition study was carried out on the leaf litters of Leucaena leucocaephala to determine the rate of decomposition of its leaves with respect to its placement on above or below the ground levels in L. leucocaephala plantations of the Federal University of Agriculture, Abeokuta, Nigeria. In the study, leaf litter were randomly handpicked from the forest floor, of this, 40 g each were weighed into thirty (30) litter bags of 2 mm mesh size in which 15 were randomly placed on the forest floor (above-ground) and the remaining 15 were buried in the soil between 5-10 cm depth (below-ground). Data were analysed using descriptive statistical techniques such as percentage, while inferential statistics (simple linear regression) was used to determine relationships between various nutrient elements and days of decomposition (DOD). We noted that the percentage of mass loss of leaf litter increased with time in days after deposit and was higher (29.93%, 32.43 % and 33.25%, 41.65%) at 80 to 100 days of placement above- and below-ground, respectively. Moreover, the exchangeable basic cations and chemical compositions of litters were not consistent with respect to DOD. Regression analysis of nitrogen (N) and organic carbon (OC) showed that these elements significantly contributed to the high (86 %) overall decomposition of litter (p < 0.05, p < 0.01) below-ground level. It is, therefore, concluded that decomposition of leaf litters occur faster below ground than above ground within the forest plantation.
    Źródło:
    World News of Natural Sciences; 2019, 23; 211-220
    2543-5426
    Pojawia się w:
    World News of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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