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Wyszukujesz frazę "succession" wg kryterium: Temat


Tytuł:
Metoda szacowania zaawansowania procesów sukcesyjnych za pomocą biegaczowatych (Carabidae, Col.) – aspekty gospodarcze
Carabids (Carabidae, Col.) as an efficient method for assessing advancement of successional processes – economic aspects
Autorzy:
Szyszko, J.
Powiązania:
https://bibliotekanauki.pl/articles/1024324.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
owady
lesnictwo
biegaczowate
sukcesja
Carabidae
srednia biomasa osobnicza
carabids
succession
mib
Opis:
It is essential in the prophylaxis planning for fresh pine forests to take into account the state of advancement successional of these forests. One of the methods to determine the rate of advancement in forest succession in pine biocoenoses is an assessment of the mean individual biomass (MIB) value calculated as the ratio of the biomass to the number of all trapped individuals. The proposed simple method of carabid trapping and biomass measurements using electronic scale ensures a quick assessment of the MIB value under field conditions.
Źródło:
Sylwan; 2003, 147, 12; 53-57
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zalesienia a sukcesja wtórna
Afforestation and secondary succession
Autorzy:
Krawczyk, R.
Powiązania:
https://bibliotekanauki.pl/articles/1313291.pdf
Data publikacji:
2014
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
grunty porolne
zalesianie
sukcesja roslin
sukcesja wtorna
afforestation
natural disturbances
secondary succession
Opis:
Secondary succession is a long and complicated natural process returning forests to post agricultural lands, whereas afforestation is an attempt to speed up this process by planting trees. Massive afforestation in the twentieth century brought an increase in forest area in Poland along with management problems in these areas due to disturbances caused by root diseases. Therefore it appears necessary to employ successional processes more fully in order to create sustainable forest ecosystems.
Źródło:
Leśne Prace Badawcze; 2014, 75, 4; 423-427
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cele hodowlane i ich realizacja w przebudowie drzewostanów
Silvicultural aims and their realisation in stand conversion
Autorzy:
Bernadzki, E.
Powiązania:
https://bibliotekanauki.pl/articles/1018678.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
przebudowa drzewostanow
lesnictwo
cele hodowlane
stand conversion
silvicultural aim
forest succession
pioneer species
silvicultural risk
Opis:
Owing to the unpredictability of changes in a habitat, a silvicultural aim should be treated as a "vision" of the future stand and adjusted in the course of its development. To meet the rational principles of stand conversion, it is necessary to fully use the natural processes occurring in forest ecosystems. More attention should be given to the species of early succession stages, which are better adapted to the changing habitat conditions, and richer species composition should be ensured to disperse silvicultural risks.
Źródło:
Sylwan; 2006, 150, 12; 3-11
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biegaczowate (Carabidae, Col.) drzewostanów Puszczy Piskiej zniszczonej przez huragan - rok "zero"
Autorzy:
Skłodowski, J.
Zdzioch, P.
Powiązania:
https://bibliotekanauki.pl/articles/1022635.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
fauna
drzewostany pokleskowe
owady
Puszcza Piska
lesnictwo
biegaczowate
Carabidae
carabidae
windthrow
windbreak
hurricane
forest
regeneration succession
Opis:
Exceedingly violent winds can result in windbreak and in windthrow. It has happened in summer of 2002 in Pisz Forest District (north part of Poland). Strong wind damaged about 30 000 hectares of pine forest. In most situations, damaging wind resulted in windthrow rather than windbreak. In total 30 plots were selected for the studies, 15 plots in Pisz forest (damaged by wind) and 15 control plots in Maskulińskie District Forest (not damaged by wind). There were distinguished 5 age variants of stands, all of them in three recapitulations. The five age classes of stands were: I class (20−30 years old), II class (30−40 y.), III class (40−50 y.), IV class (50−70 y.) and V class (above 70 years old). In total 4 000 carabids individuals belonging to 46 species were caught during studies. The wards analy− sis showed substantial diference of carabid assemblages occurring in damaged and non damaged forest. In damaged forest, small zoophages, hemizoophages, an open area or eurtyopic species, xerophilus species were frequently observed. Substantial differences in mean individual biomass of assemblages occurring in damaged and non damaged forest were also observed.
Źródło:
Sylwan; 2005, 149, 05; 43-51
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Średnia biomasa osobnicza zgrupowań biegaczowatych w produkcyjnym cyklu drzewostanów bukowych w Dolinie Ruhry (zachodnie Niemcy)
Mean individual biomass of carabid assemblages in the productive cycle of beech forests in the Ruhr Valley (Western Germany)
Autorzy:
Schreiner, A.
Powiązania:
https://bibliotekanauki.pl/articles/1006304.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Dolina Ruhry
drzewostany bukowe
owady
biegaczowate
Carabidae
lownosc
srednia biomasa osobnicza
carabidae
mib
beech forest
succession
logistic growth
Opis:
Number of carabid beetles, length of C. violaceus elytra and MIB of all carabids were studied subsequent to pitfall−trapping in 14 beech stands of increasing age (1−165 years) in Western Germany. The beech stands seemed to offer fairly constant feeding conditions for C. violaceus (and relatively small decrease in rather low level of degradation in the plantation). In total, 5,536 carabid individuals were trapped, which revealed significant increase of MIB (from 156.88 to 733.63 mg) following the logistic growth function. Due to incomplete degradation of the stands (on 'rich' soil and after using specific beech−harvesting techniques), there is a high baseline MIB at t=0 and an early onset of regenerative succession. The curve's gradient is steep and MIB reaches final value of about 650 mg in timber stands. Such high value may be explained by the good quality of loam soils in the area under study. In conclusion, logistic MIB function was calculated that describes regenerative beech succession on 'rich' soil and may help foresters to identify areas of disturbed succession.
Źródło:
Sylwan; 2012, 156, 11; 833-842
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wtórna sukcesja lasu na polanach górskich wyłączonych z gospodarki pasterskiej
Secondary succession of forest on mountain glades excluded from pasture economy
Autorzy:
Ciurzycki, W.
Powiązania:
https://bibliotekanauki.pl/articles/1023695.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
sukcesja roslin
sukcesja wtorna
lesnictwo
polany popasterskie
gory
mountain glades
pasturage abandonment
secondary vegetation succession
forest emerging
nature protection
Opis:
The paper reviews the process of secondary vegetation succession and forest emerging on mountain glades after pasturage abandonment, investigations of this problem and its importance for nature protection.
Źródło:
Sylwan; 2004, 148, 11; 59-66
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamika i kierunki zmian zgrupowań epigeicznych mrówek (Formicidae) w procesie spontanicznego odtwarzania lasu
Dynamics and directions of changes of ant assemblages (Formicidae) in the process of spontaneous regeneration of forest
Autorzy:
Mazur, S.
Powiązania:
https://bibliotekanauki.pl/articles/1023899.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
sukcesja roslin
grunty porolne
Formicidae
mrowkowate
lesnictwo
bioindykatory
bioindykacja
owady epigeiczne
sukcesja naturalna
natural succession
former agricultural land
zooindication
ants
Opis:
This paper is an attempt to find the dynamics and directions of changes, which undergo in various developmental stages of spontaneous reforestation by using ants as zooidicators.
Źródło:
Sylwan; 2004, 148, 01; 12-18
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sukcesja biegaczowatych w procesie spontanicznej restytucji lasu na gruntach porolnych
Succession of carabids in the natural restitution of forest on former agricultural land
Autorzy:
Skłodkowski, J.
Sławski, M.
Powiązania:
https://bibliotekanauki.pl/articles/1026686.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
fauna
drzewostany
odnowienia lasu
grunty porolne
lesnictwo
biegaczowate
odnowienia naturalne
sukcesja
Carabidae
carabidae
forest restitution
spontaneous succession
afforestation
farmland
mib index
Opis:
Investigations were carried out in 2000−2001 on the succession of carabid assemblages accompanying the spontaneous succession of pine stands on former agricultural land. Observations concerning changes in the number of carabid individuals and species, proportion of individuals in the groups: developmental, ecological, trophic, geographical, moisture preference, wing differences, as well as the mean individual biomass (MIB) indicated that the development of carabid assemblages during the spontaneous succession of stands can be compared to the regeneration process of the carabid fauna that accompany afforestation and that the direction of this development is similar to the development of carabid assemblages that accompany afforestation of farmlands.
Źródło:
Sylwan; 2003, 147, 05; 47-57
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Określenie dynamiki i kierunków zmian zgrupowań pająków (Aranei) zachodzących w procesie spontanicznego odtwarzania lasu
Autorzy:
Łęgowski, D.
Powiązania:
https://bibliotekanauki.pl/articles/1026786.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
struktura zgrupowan
sklad gatunkowy
pajaki
grunty porolne
Araneida
lasy
lesnictwo
bioindykatory
bioindykacja
sukcesja naturalna
natural succession
former agricultural land
zooindication
spiders
Opis:
Forest ecosystems established on former agricultural lands are affected by pathogenic factors described as „chain disease”. The regeneration of such ecosystems lasts longer (ca by 30 to 50 years) as compared with the regeneration rate of stands growing on forest sites. One of the restoration methods of forest ecosystems is the leaving of fallow lands for natural succession. The paper is an attempt to find the dynamics and direction of changes that undergo in various developmental stages of natural succession on former agricultural lands by using zooindication indicators.
Źródło:
Sylwan; 2003, 147, 09; 38-46
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rola sójki (Garrulus glandarius) w inicjowaniu przemian sukcesyjnych zbiorowisk leśnych z udziałem dębu (Quercus sp.)
Role of jay (Garrulus glandarius) in initializing successional changes in forest communities with the participation of oak (Quercus sp.)
Autorzy:
Olszewski, A.
Brzeziecki, B.
Powiązania:
https://bibliotekanauki.pl/articles/980357.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
zbiorowiska lesne
sukcesja roslin
dab
Quercus
zoochoria
sojka
Garrulus glandarius
acorn
jay
oak
ornitochory
seed dispersal
stand heterogeneity
tree succession
zoochory
Opis:
The ability of spatial expansion and conquering of new locations, suitable for growth, is one of the most important properties enabling different plant species (including forest trees) a permanent existence in a constantly changing (in space and in time) environment. In the course of evolution, plants developed several adaptations and mechanisms enabling them to capture new localities appropriate for life. The key role in this process is played by so called propagules, i.e. differently built spores, seeds and fruits. The main sources of forces and major transportation vectors for propagules are such mechanisms as: power of gravity (barochory), wind (anemochory), water (hydrochory), animals (zoochory) and man (antropochory). Among them, in case of tree species producing large seeds, containing bulky amounts of food resources, the most important role is played by zoochory. The special variant of zoochory is ornitochory, i.e. dispersion of plant propagules by birds. One of the best known and documented examples of ornitochory is dispersal of oak acorns by jays (Garrulus glandarius). The contemporary research shows that during a vegetation period one single bird is able to deposit even several thousends of acorns within the area of 10 to 100 ha. The dispersal distance in case of acorns distributed by jays is variable and depends on several factors, first of all, climatic conditions and degree of environmental heterogeneity. On average, acorns are distributed within a distance of several hundred meters from seed trees; sometimes they are disseminated at a distance of several (4−8, maximum 20) kilometers. As a rule, only a part of deposited acorns is uncovered and consumed by birds, thus at least some of them can germinate and produce new oak seedlings. It was also recently demonstrated that jays preferably put down acorns under the stand canopies composed by tree species other than oak, for instance, under Scots pine trees. Under favourable conditions, this initiates natural successional processes and leads to a significant conversion of tree stand composition. Considering a large scale and commonness of this phenomenon, it deserves an interest and attention, not in the case of natural forests only, but in the case of managed forests as well, in which the quasi−natural, successional processes, initiated by jays, can considerably contribute to a greater compositional and structural diversity of tree stands.
Źródło:
Sylwan; 2019, 163, 06; 479-88
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Grzyby saproksyliczne w resztkach pozrębowych sosny zwyczajnej
Saproxylic fungi in the Scots pine woody debris
Autorzy:
Kwaśna, H.
Łakomy, P.
Gornowicz, R.
Powiązania:
https://bibliotekanauki.pl/articles/989591.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
sosna zwyczajna
Pinus sylvestris
zreby
pozostalosci zrebowe
mikologia
grzyby saproksyliczne
drewno martwe
biodegradacja
deadwood quality and amount
nutritional preferences
saproxylic fungi
succession
Opis:
Awareness of the importance of the presence of deadwood in forest ecosystems has increased in recent decades. Today, deadwood is not only recognized as a key element in carbon sequestration, nutrient supply and water retention, but is also known to be a reservoir of saproxylic species (species associated with the decay of wood on living and dead trees). The amount of deadwood in clear−cut forest is currently higher than 100 years ago. The issue of how much deadwood and of what quality (including size) there should be in order to promote the conservation of saproxylic biodiversity and sustainable forest management is still vivid. Mycological analyses to determine (i) structure of fungal communities in Scots pine wood debris, (ii) sources and reservoirs of fungi, (iii) nutritional preferences of fungi, and (iv) potential rate and dynamics of wood decomposition were carried out on an ‘old' and ‘fresh' wood (stumps, branches and boughs) from Jedwabno Forest District (north−eastern Poland). Fungi from 62 wood samples were isolated on two artificial media (PDA and SNA) and identified according to their morphology. Eleven species of Zygomycota, 79 of Ascomycota and 15 of Basidiomycota were detected. The majority of species (91%) colonized many samples. Only 9% of species colonized single samples only. The most common species, with high rates of colonization, included Acremonium spp., Alternaria sp., Aspergillus spp., Aureobasidium pullulans, Cladosporium spp., Epicoccum nigrum, Lecythophora spp., Mariannaea elegans, Ophiostoma + Sporothrix spp., Penicillium spp., Phialocephala spp., Phialophora spp., Phlebiopsis gigantea, Phoma spp., Sarocladium strictum, Scytalidium lignicola, Sydowia polyspora, Trichoderma spp. (mainly T. harzianum and T. viride) and Umbelopsis spp. A few species occurred only on stumps or only on branches. More species occurred on 'old' wood than on 'fresh' wood. The average level of sample colonization by a single fungal species was higher (non−significantly) on 'old' than on 'fresh' wood, and on branches than on stumps. The results show that deadwood is a habitat for many fungal species that occur in succession. The presence of deadwood in clear−cut forest and in its neighborhood is necessary for the conservation of saproxylic fungal diversity and ecological sustainability of forests.
Źródło:
Sylwan; 2016, 160, 05; 355-364
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spontaniczne odnowienie drzewostanu zaburzonego huraganem w lipcu 2002 roku
Spontaneous regeneration of a stand disturbed by a hurricane in July 2002
Autorzy:
Skłodowski, J.W.
Buszyniewicz, J.
Domański, M.
Powiązania:
https://bibliotekanauki.pl/articles/989983.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Nadlesnictwo Pisz
drzewostany pohuraganowe
odnowienia lasu
odnowienia naturalne
sosna zwyczajna
Pinus sylvestris
sukcesja spontaniczna
windthrow
disturbance
scots pine
regenerative succession
spontaneous regeneration
Opis:
Spontaneous regeneration in the hurricane−disturbed stand in the Pisz Forest District (N Poland) was registered in the years 2007−2008 and 2011−2012. Breast height diameter and crown size were measured on 10×10 m plots. The analysis also included the soil respiration rate, the decomposition rate of organic matter, soil pH, leaf area index (LAI), content of Mg, Ca, C, N and P in soil, and vegetation coverage of the forest floor. The natural regeneration was dominated by birch, followed by pine, which recolonized the disturbed stand in smaller extend, possibly because of the thick cover of organic material hindering germination and making it difficult for pine sprouts to reach the mineral soil. Spontaneous regeneration of the stand was most severely inhibited by Deschampsia flexuosa, whose growth over the entire surface was linked to the capture of excess released nitrogen resulting from the decomposition of organic matter. Mosses and lingonberry did not delay the spontaneous appearance of seedlings. The development of the natural regeneration suggests the possibility that an uneven−aged stand will emerge.
Źródło:
Sylwan; 2014, 158, 07; 499-508
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zbiorowiska grzybów w rozkładającym się drewnie dębu i sosny
Communities of fungi in decomposed wood of oak and pine
Autorzy:
Kwaśna, H.
Mazur, A.
Łabędzki, A.
Kuźmiński, R.
Łakomy, P.
Powiązania:
https://bibliotekanauki.pl/articles/1294810.pdf
Data publikacji:
2016
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
fitopatologia lesna
dab
Quercus
sosna
Pinus
drewno martwe
rozklad drewna
grzyby
zbiorowiska grzybow
communities of fungi
oak
Scots pine
succession
wood decomposition
Opis:
The abundance and diversity of wood decomposing fungi were investigated by isolating and cultivating filamentous fungi from wood and by detection of fruit bodies of ascomycetous and basidiomycetous fungi. The objective was to study the impact of forest management on fungi in 100-year-old oak and 87-year-old Scots pine forests in Northern Poland. Fungi were found on coarse woody debris of decayed stumps and fallen logs, boughs and branches in each of the three (managed and unmanaged) examined stands. In total, 226 species of Oomycota and fungi were recorded. Oak wood was colonized by one species of Oomycota and 141 species of fungi including Zygomycota (19 species), Ascomycota (103 species) and Basidiomycota (19 species). Scots pine wood was also colonized by one species of Oomycota and 138 species of fungi including Zygomycota (19 species), Ascomycota (90 species) and Basidiomycota (29 species). In the first, second and third stages of decomposition, the oak wood was colonized by 101, 89 and 56 species of fungi respectively and pine wood was colonized by 82, 103 and 47 species respectively. Eighty three of the observed species (37%) occurred on both types of wood, while the other species displayed nutritional preferences. A decrease in the number of species with advancing decay indicates the necessity for a continuous supply of dead wood to the forest ecosystem. This supply would secure the continuity of fauna and flora and guarantee a stable forest development. The nutritional and ecological preferences of many fungal species furthermore indicate the necessity of supplying the forests with wood of different species. In commercially managed forests the results obtained here will aid in: (i) the development of strategies for effective dead wood management in the context of forest productivity and future wood stock growth, as well as (ii) finding a compromise between forest management requirements and environmental protection.
Źródło:
Leśne Prace Badawcze; 2016, 77, 3
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Próba oceny zasadności stosowania ochrony biernej w rezerwatach utworzonych z drzewostanów zagospodarowanych na przykładzie rezerwatu "Sosny Taborskie"
An attempt to assess the usefulness of passive protection in reserves established in managed stands on the example of the "Sosna Taborska" Reserve
Autorzy:
Dziekoński, H.
Powiązania:
https://bibliotekanauki.pl/articles/1023579.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
przepisy prawne
rezerwaty przyrody
rezerwat Sosny Taborskie
lesnictwo
odnowienia naturalne
urzadzanie lasu
ochrona przyrody
sukcesja naturalna
nature reserves
nature conservation
natural succession
legal regulations
Opis:
The paper focuses on the issue of protection of nature reserves established from managed stands where−in the neglect of appropriate silvicultural and protective measures have led to unfavourable changes in forest ecosystems.
Źródło:
Sylwan; 2004, 148, 05; 60-68
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ochrona bioróżnorodności Puszczy Białowieskiej w kontekście dynamiki naturalnych i sztucznych zaburzeń
Biodiversity conservation in the Bialowieza Forest in the context of natural and anthropogenic disturbances dynamics
Autorzy:
Hilszczański, J.
Jaworski, T.
Powiązania:
https://bibliotekanauki.pl/articles/985946.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Puszcza Bialowieska
ochrona bioroznorodnosci
ochrona przyrody
ochrona scisla
ochrona czynna
sukcesja naturalna
diversity conservation
strict protection
active protection
natural succession
intermediate disturbance
hypothesis
Opis:
The paper presents the issue of conservation of species diversity of the Białowieża Forest in the context of both natural and human−related disturbances. These disturbances, in the authors’ opinion, were the main factor that shaped the unique species diversity of this area. Examples of natural disturbances occurring in the Białowieża Forest include the impact of wind, insect outbreaks and, to a lesser extent, fires. On the other hand anthropogenic disturbances are related to various forms of forest use, which historically took place here, i.e. grazing by domestic animals, beekeeping, charcoal production, and recently also forest management. Currently, in the situation of rarity and unpredictability of natural disturbances, as well as due to a significant decrease in human impact on forests of the Białowieża Forest, there is a risk of decrease of biodiversity, which is related to the process of natural succession, homogenization of the forest and the decline of favourable habitats for the development of some organisms. This particularly applies to the so−called ‘open forest’ species that are dependent on sunny places in forests. Historically these species found favourable conditions in the Białowieża Forest in many sites, where traditional forms of forest use took place, but also in areas used for traditional forest management. At present, it is necessary to adapt forest management on the one hand and nature conservation on the other, in order to meet the requirements of diverse groups of organisms, both requiring passive as well as active methods of conservation. The authors postulate the necessity of introducing a diverse conservation strategy in the Białowieża Forest.
Źródło:
Sylwan; 2018, 162, 11; 927-932
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł

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