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Tytuł:
Modelowanie wielkości użytkowania rębnego drzewostanów w zależności od przyjętych metod prognozowania rozwoju lasu
Modelling of the size of allowable cutting based on adopted methods of forest development forecast
Autorzy:
Szyc, K.
Borecki, T.
Stępień, E.
Kędziora, W.
Konieczny, A.
Orzechowski, M.
Wójcik, R.
Powiązania:
https://bibliotekanauki.pl/articles/979061.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
forestry use
forest development
modelling of usage regulation
Opis:
Many attempts have been made to develop a strategy for regulating forest use consistent with the multifunctional forest model. In this paper we present two proprietary methodologies of regulation of the allowable cutting size in a multifunctional forest in the 60−year time perspective. We assumed that all restrictions of nature protection and non−productive functions of the forest would still be in force. We based the first method on age class tables (TKW), which is faster but less exact in terms of spatial order of felling. The tree stand method (D−STAN) is based on stands spatial order and the cutting direction basis. In both cases, we based the temporal felling order on species rotation age. Comparing the results, we noticed that they present similar trends in the age structure of tree stands in younger age classes. The main discrepancies of the forecast concerns the share of forest stands in a complex structure: the TKW method gave approximately 12,4%, while the D−STAN one produced 5,1%. The latter approach shows that much smaller areas of stands are used for reconstruction. That marker is influenced by the spatial order of cutting used in the D−STAN model. In conclusion, we suggest to return to the big−area clear−cutting system on fresh coniferous habitats. Medium−area clear−cuttings should be brought back on the least fertile fresh mixed coniferous forests and possibly even fresh mixed deciduous forests.
Źródło:
Sylwan; 2020, 164, 04; 280-291
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Problematyka stabilności ekosystemowej w rozwoju lasu wyłączonego z gospodarki leśnej
Problems of ecosystem stability in the development of the forest excluded from commercial forest production
Autorzy:
Miś, R.
Powiązania:
https://bibliotekanauki.pl/articles/1023137.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
ekosystemy lesne
stabilnosc
lasy wylaczone z gospodarki lesnej
lesnictwo
ecosystem stability
forest development
development model
Opis:
The paper presents an outline of problems associated with dynamic ecosystem stability viewed from the angle of a forest which was completely excluded from productive utilisation. The following notions were distinguished: forest stability, stand stability and managed forest stability. The author's own interpretation of forest development was presented. The model portrays the development of the forest and the role of self−regulation as a negative and positive feedback. The relationship between the effect of self−regulating capabilities and the effect of ecosystem resistance to de−stabilising actions was taken into consideration.
Źródło:
Sylwan; 2004, 148, 06; 30-37
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Metodyczne podstawy strategii rozwoju lasu
Methodological foundations for the development of forest policy
Autorzy:
Poznański, R.
Powiązania:
https://bibliotekanauki.pl/articles/991635.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
lasy
rozwoj lasu
strategia rozwoju
planowanie
forest development strategy
regulation
planning
monitoring
forecasting
development standard
Opis:
The forest development strategy is a hierarchical set of actions specifying the ways to achieve three mutually integrated objectives: principal (strategic), tactical and operational. The principal objectives are formulated in the forest development control process and relate to forests understood as a whole, are long−term and determined by the forest and ecological policy of the state. The tactical objectives are formulated in the forest management regulation process, are medium−term (10 years) and refer to forest estates or forest management units. The operational objectives are formulated in the forest management planning process, are short−term (annual) and relate to economic activities performed in individual stands.
Źródło:
Sylwan; 2013, 157, 10; 786-792
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ czynników glebowych na występowanie Prunus serotina w fitocenozach leśnych
Effect of soil factors on the incidence of Prunus serotina in forest phytocoenoses
Autorzy:
Halarewicz, A.
Kawałko, D.
Powiązania:
https://bibliotekanauki.pl/articles/991410.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewostany
gatunki inwazyjne
czeremcha amerykanska
Prunus serotina
wystepowanie
siedliska lesne
czynniki glebowe
black cherry
invasive species
soil factors
forest development
Opis:
The study was accomplished in the Wołów Forest District (SW Poland) and focused on relations between the soil environment characteristics and the incidence of Prunus serotina in different types of forest habitats. The redundancy analysis (RDA) carried out indicates significant effect of the soil moisture contents on the species dispersion. Moreover, it has been demonstrated that black cherry saplings respond to soil fertility and acidity.
Źródło:
Sylwan; 2014, 158, 02; 117-123
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Podstawy nowoczesnych zasad gospodarowania w różnowiekowych lasach górskich
The foundations of modern management of uneven-aged mountain forests
Autorzy:
Poznański, R.
Powiązania:
https://bibliotekanauki.pl/articles/1009323.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
lasy gorskie
drzewostany roznowiekowe
drzewostany przerebowe
struktura drzewostanu
rozklad piersnic
inwentaryzacja lasu
gospodarstwa przerebowe
gospodarstwa przerebowo-zrebowe
miazszosc drzewostanow
gospodarka lesna
postepowanie hodowlane
uneven−aged forest
multi−storied forest
selection system
dbh distribution types
uneven−aged forest development stages
new prescribed cut referring to silviculture needs
new method of regulation of selection or near−selection forest type development
Opis:
In uneven−aged forests, age does not apply to the whole stand but to individual trees. Therefore age of individual trees is rather represented by their thickness, and dbh distribution types become the measure of their age. The distinguished dbh distribution types show individual uneven−aged forest development phases: type A – optimum phase, type B – initial phase, type C – future phase and type D – ageing phase. In the optimum uneven−aged forest development phase, 'prescribed cut according to silviculture needs' should be similar or equal to volume increment. In the initial development phase, such 'prescribed cut' should represent 60−80% of current volume increment, while in the future forest development phase, it should equal the current volume increment or exceed it by 20%. In the ageing forest development phase, 'prescribed cut according to silviculture needs' should be higher than the current volume increment by 10−30%. Selection−type forest management should be a model one for uneven−aged forests. Selection−type forests are close to the natural state and constitute a stable forest ecosystem with high resistance to biotic and abiotic factors and by reducing and dispersing the management risk they better fulfil their multiple functions.
Źródło:
Sylwan; 2010, 154, 09; 603-614
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Liczebność i skład gatunkowy koprofagicznych poświętników w cyklu odtworzeniowym drzewostanów sosnowych w Lasach Człuchowskich (Pojezierze Pomorskie)
Abundance and species structure of dung beetles in the regeneration cycle of Scots pine stands in Czluchow Forest (Pomeranian Lake District)
Autorzy:
Byk, A.
Rutkiewicz, A.
Powiązania:
https://bibliotekanauki.pl/articles/986688.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Lasy Czluchowskie
drzewostany sosnowe
rozwoj drzewostanu
owady
koprofagi
zukowate
Scarabaeidae
Geotrupidae
wystepowanie
zgrupowania zwierzat
liczebnosc
sklad gatunkowy
scarabaeoidea
scarabaeidae
geotrupidae
community structure
forest development
Opis:
The aim of the study was to analyse the changes in abundance and species composition of dung beetles (coprophagous Scarabaeoidea) inhabiting Scots pine stands in various stage of the development. Beetles were collected in baited traps in Człuchów Forest, Pomeranian Lake District (NW Paland). In total we collected 87,596 specimens representing 41 species (tab. 2). The structure of dung beetle communities inhabiting analysed Scots pine stands changes in the course of the forest developmental cycle. Lands adjoining to a forest, clear−cut areas and plantations are inhabited by heliophilous communities of dung beetles, with superdominant species Trypocopris vernalis and dominant species such as Anoplotrupes stercorosus, Aphodius pedellus, Euorodalus coenosus and Chilothorax distinctus (tab. 2, fig. 5a). Thicket stage, pole timber stage, and the mature stand are inhabited by umbrophilous dung beetle communities characteristic for pine stands, with superdominant species Anoplotrupes stercorosus and dominant species Trypocopris vernalis (tab. 2, fig. 5b). At thicket stage the number of dung beetles species is dramatically reduced in comparison to other developmental stages (fig. 3). Moreover, a fundamental change in species composition is observed.
Źródło:
Sylwan; 2017, 161, 09; 781-792
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Odnawianie się czeremchy amerykańskiej (Prunus serotina Ehrh.) na siedliskach borowych
Regeneration of black cherry (Prunus serotina Ehrh.) in coniferous forest communities
Autorzy:
Halarewicz, A.
Powiązania:
https://bibliotekanauki.pl/articles/1008859.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
siedliska lesne
siedliska borowe
bor mieszany swiezy
bor swiezy
bor mieszany wilgotny
podszyt
gatunki obce
gatunki inwazyjne
czeremcha amerykanska
Prunus serotina
intensywnosc odnowienia
alien plant invasions
black cherry
colonization
forest development
Opis:
The secondary invasion of Prunus serotina in the forest ecosystems is currently a serious problem, both in ecological and economical terms. The article presents how the intensity of the regeneration of this kenophyte depends on the type of coniferous forest community, in which it takes place. The effect of the herb and moss layers and of their attributes on the abundance of black cherry saplings is discussed.
Źródło:
Sylwan; 2011, 155, 08; 530-534
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Realizacja zalesień w latach 2001-2018 w różnych regionach Polski
Afforestation in 2001-2018 in various regions of Poland
Autorzy:
Wysocka-Fijorek, E.
Gil, W.
Gołos, P.
Powiązania:
https://bibliotekanauki.pl/articles/978885.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
afforestation
non−forest land
subsidies
private forests
Rural development program
Opis:
The paper analyzes the spatial and temporal diversity of afforestation of non−forest land, with particular emphasis on land not being the property of the State Treasury, before joining the European Union and as part of subsequent stages of the Rural Development Program. Data from the databases of the Statistics Poland and from the Agency for Restructuring and Modernisation of Agriculture was used. Afforestation in the period 2001−2018 was carried out with varying intensity throughout the country and in individual years. This condition was largely influenced by availability of land for afforestation and the form of land ownership. The history of the individual regions is clearly visible as well. Private forests occupy the smallest area in the territories incorporated into Poland after World War II, also in part of the former Prussia region and in the area covered by so called the ‘Wisła’ Operation in south−eastern Poland. In turn, in Podlasie and Lubelszczyzna regions (eastern Poland), the share of private forests is significant. The biggest changes in the afforestation structure took place after the introduction of subsidies for their establishment and care, after Poland’s accession to the European Union. In the period 2004−2018, the scope and criteria for granting the subsidies changed. New categories, which were to encourage beneficiaries to use this form of support, appeared. In 2004−2007 part of the Rural Development Program the area of afforested land in relation to the number of beneficiaries or issued decisions was the largest, while in subsequent campaigns the afforestation area decreased, despite the increase in the level of subsidies. The most important reasons for reducing the interest in afforestation are: decreasing resources of land intended for afforestation, greater interest among farmers in competitive payments for agricultural land, complicated bureaucratic procedures related to afforestation. The paper also highlights the most important restrictions that inhibit afforestation. These include: exclusion from afforestation of land located in Natura 2000 areas, exclusion of grassland (meadows and pastures) from afforestation and limitation of the aid granted for afforestation to one farmer to an area not exceeding 20 ha in the entire Program period. Lifting these barriers can have a positive effect on the creation of new afforestation or improvement of existing ones.
Źródło:
Sylwan; 2020, 164, 09; 726-735
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geneza, cel i synteza wyników badań nad znaczeniem leśnictwa w rozwoju obszarów wiejskich
Autorzy:
Płotkowski, L.
Powiązania:
https://bibliotekanauki.pl/articles/1022294.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
gospodarka zrownowazona
obszary wiejskie
rozwoj obszarow wiejskich
gospodarka lesna
lesnictwo
land use
sustainable forest management
rural development
forest products
non−market forest values
Opis:
This paper deals with the author's research results on the current situation and future prospects concerning the value of forestry in rural development presented in various reports and papers including columns of Sylwan. Forestry forms a substantial part of the rural economy. Wood ad other forest products and their processing secure a number of jobs in rural areas increasing socio−economic stability and development. Apart from the economic aspects, forestry has a lot of non−market values. It is necessary to analyse potential economic and social benefits of forestry to rural areas and their development of both market and nonmarket values and to include those benefits in rural conceptions.
Źródło:
Sylwan; 2005, 149, 02; 60-72
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Las i gospodarka leśna w systemie planowania i zagospodarowania przestrzennego w Polsce
Forest and forest economy in spatial land-use planning and management in Poland
Autorzy:
Przybylska, K.
Zięba, S.
Powiązania:
https://bibliotekanauki.pl/articles/1009657.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
gospodarka lesna
Polska
lasy
planowanie przestrzenne
lesnictwo
gospodarka przestrzenna
spatial land−use planning
sustainable development
forest valuation
functional forest area
Opis:
The aim of the paper is to indicate the possibilities of synchronizing forest resource management planning with spatial land−use planning at different levels: national, provincial, county and local. In the paper references are made to hierarchical spatial land−use planning to be enriched with a systematic forest planning.
Źródło:
Sylwan; 2009, 153, 12; 814-824
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Metodyczne przesłanki strategii rozwoju zasobów leśnych w Polsce
Methodological assumptions of the strategy of forest resource development in Poland
Autorzy:
Borecki, T.
Stępień, E.
Powiązania:
https://bibliotekanauki.pl/articles/994944.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
zasoby lesne
rozwoj zrownowazony
strategia rozwoju
gospodarka lesna
uzytkowanie lasu
kierunki rozwoju
priorytety
forest resources
development
concept
forest use
level of harvest
Opis:
Paper presents the forest management planning assumptions of the forest resource development strategy in Poland till 2070 taking into account the need of maintaining the sustainable use of stands integrated with the possibility of improving the current state of forest resources.
Źródło:
Sylwan; 2012, 156, 12; 914-922
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kierunki doskonalenia zasad urządzania lasu w celu realizacji trwale zrównoważonej gospodarki leśnej
Directions of improvement of the forest management planning principles for pursuing sustainable forest management
Autorzy:
Głaz, J.
Czerepko, J.
Jabłoński, M.
Zajączkowski, G.
Powiązania:
https://bibliotekanauki.pl/articles/1012423.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
gospodarka zrownowazona
urzadzanie lasu
las wielofunkcyjny
ochrona bioroznorodnosci
gospodarka lesna
doskonalenie
plan urzadzania lasu
lesnictwo
forest planning
improvement of forest planning principles
sustainable development
Opis:
The paper presents the proposals of improvement of the forest management planning principles aimed at efficient acquisition of data on the condition of forests and projected economic priorities with special emphasis on Natura 2000 areas, timber production for energy purposes, development of new techniques and technologies, carbon dioxide sequestration and climate changes.
Źródło:
Sylwan; 2008, 152, 01; 37-44
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Socjalne aspekty modelu wielofunkcyjnej gospodarki leśnej
Social aspects of sustainable forest management
Autorzy:
Płotkowski, L.
Powiązania:
https://bibliotekanauki.pl/articles/973294.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
gospodarka wielofunkcyjna
leśnictwo
gospodarka leśna
gospodarka zrównoważona
sustainable forest management
land use
rural and regional development
Opis:
The subject of the paper concerns: a) analyse of the interrelations between socio−economic aspects within forestry as well as with other relevant sectors such as agriculture; b) identify relevant groups, the nature and extent of their involvement in sustainable forest management (SFM), and c) review the question of participation and conflict resolution.
Źródło:
Sylwan; 2003, 147, 04; 10-19
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kształtowanie krajobrazu rolniczego a polityka leśna państwa
The management of agricultural landscape and the national policy on forests
Autorzy:
Ryszkowski, L.
Bałazy, S.
Powiązania:
https://bibliotekanauki.pl/articles/1178278.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
polityka lesna
krajobraz rolniczy
Polska
zadrzewienia
ksztaltowanie krajobrazu
agricultural landscape management
forest policy
augmentation of forest cover
afforestation
mid−field woodlots
biogeochemical barriers
sustainable development
integration
Opis:
The National Policy on Forests and the National Programme for the Augmentation of Forest Cover indicate regional needs, possibilities, legal and financial principles of afforestations as the most important elements of the improvement and maintenance of a good state of the country's environment. The documents put emphasis on the need for the establishment and restoration of afforestations between fields, however, neither the guidelines for their legal and administrative status nor sources of financing have been indicated. In many regions of the country, the large−scale afforestation are almost impossible, because high−quality soils are under agricultural production and the local communities lack the alternative means of living. Thus, the mid−field afforestations of a linear or small−surface type could be the only elements differentiating the landscape structure and acting as biogeochemical barriers. Their network perform the same complementary protective functions as forests or other semi−natural ecosystems. With a view to economising expenditures and intensifying effects aiming at the environment protection it is necessary to closely integrate the countryside environmental programmes including the establishment of biogeochemical barriers and afforestations. The principles of such integration and co−ordination of pro−ecological programmes of the landscape structure management should be laid down under a separate research project.
Źródło:
Sylwan; 2003, 147, 10; 82-90
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Urządzanie lasu w Polsce po drugiej wojnie światowej w świetle źródłowych publikacji Sylwana. Część I. Okresy rozwoju urządzania lasu
Forest management in Poland after the Second World War in the light of source publications from 'Sylwan' journal. Part I. Periods of the forest management development
Autorzy:
Magnuski, K.
Jaszczak, R.
Powiązania:
https://bibliotekanauki.pl/articles/1015641.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
prace urzadzeniowe
rozwoj
okres powojenny
historia
lesnictwo
urzadzanie lasu
cykle rewizyjne
forest management
cycles in the post−war period
development
Opis:
The article presents the development and practical activities of forest management in consecutive cycles of the post−war period (1945−2006) beginning with the elaboration of a rough table of stand age classes, via tentative, definite forest management and further on to the first, second, third and finishing with the fourth (in progress) review management cycle.
Źródło:
Sylwan; 2008, 152, 06; 22-32
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
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