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Tytuł:
Polityka leśna a przyszłość lasów i leśnictwa
Forest policy and the future of forests and forestry
Autorzy:
Paschalis-Jakubowicz, P.
Powiązania:
https://bibliotekanauki.pl/articles/979323.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
state forests policy
climate change
proposed changes and policy solutions
Opis:
Formulation of new forest policy and its implementation requires the use of past experiences and the enactment of many changes. Modification to the provisions of the 1997 National Forest Policy is necessary, introducing additions and corrections resulting from climate, economic and environmental changes, social expectations and international conditions. Agriculture and energy are the sectors of the economy that currently have the greatest impact on the implementation of forest policy and are particularly important for forestry activities, including the adaptation of forests to climate change. Forests and forest management are currently the victim, not the driving force, of the ongoing climate warming process, and the adaptation of forests to climate change requires coordination of policy solutions. The member states of the European Union do not pursue a common forest policy, whereas the implementation of forestry policy solutions aimed at counteracting negative climate change should be approved and adopted on a global scale. Without such a consensus, local or regional activities – much needed and bringing large, specific environmental benefits – are insufficient. The impact of climate change on the production and income of producers in the forestry and wood products sectors should also be taken into account in policy solutions. It is important to integrate forestry and forestry policy with other sectoral policies, building comprehensive planning processes that apply to entities in various sectors, including solutions for environmental services payments. The main instrument in the policy−making process is the participation of the relevant stakeholders, not a hierarchical management model. Development of solutions in the current situation should take place as soon as possible, while the schedule for achieving goals should be set beyond 2030. The objective of this work is to present the justifications for the introduction of the proposed changes and additions to the current provisions in the policy of the State Forests related to the implementation of the assumptions, objectives and conditions for the development of forestry and forests in our country.
Źródło:
Sylwan; 2020, 164, 07; 539-548
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charakterystyka zmian w stanie lasów Puszczy Noteckiej
The description of changes in the state of the Notecka Primeval Forest
Autorzy:
Miś, R.
Powiązania:
https://bibliotekanauki.pl/articles/1026465.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
Puszcza Notecka
gospodarka lesna
lasy
lesnictwo
urzadzanie lasu
notecka forest
forest management
forest condition
trends of changes
Opis:
The paper provides the results of the subsequent forest management plans conducted for Forest Districts lying on the grounds of the Notecka Primeval Forest. The objective of the studies was to define the trends of changes of indicators used in the assessment of the state of forests and forest management. The obtained results refer to the longer period of time (44 years) and account for important changes in the structure and functioning of the Notecka Primeval Forest.
Źródło:
Sylwan; 2003, 147, 06; 34-46
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza wybranych czynników w procesach globalizacyjnych i ich wpływ na kierunki zmian w światowym leśnictwie. I. Założenia metodyczne
Analysis of selected factors in the globalisation processes and their impact on trends in global forestry. I. Methodological assumptions
Autorzy:
Paschalis-Jakubowicz, P.
Powiązania:
https://bibliotekanauki.pl/articles/1009546.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
lasy
funkcje lasu
kierunki zmian
globalizacja
metodyka badan
globalization of forests and forestry
trends and changes
Opis:
The primary scientific objectives of this study are to develop a methodology of research as well as to identify and describe groups of factors affecting the processes influencing the world forests and forestry. The scope of research includes an analysis of results published in more than 1000 papers, hundreds of reports and analysis prepared for the negotiating teams participating in meetings of the Climate Convention and Kyoto Protocol, Convention on Biological Diversity, the UN Commission on Sustainable Development, FAO Timber Committee, the Standing Forest Committee of the European Union, the United Nations Forum on Forests and the Ministerial Process Protection of Forests in Europe. Paper presents the complex processes of conditioning, which is subject to global forestry, and the obtained results are original, verifying in many areas of current scientific understanding of global forestry.
Źródło:
Sylwan; 2010, 154, 01; 3-14
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena fragmentacji lasów Pomorza Zachodniego pomiędzy XV a XX wiekiem
Evaluation of the forest cover fragmentation in Western Pomerania between the 15th and 20th century
Autorzy:
Pieńkowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/989791.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
lasy
fragmentacja lasu
spadek lesistosci
Pomorze Zachodnie
wiek XV-XX
forest fragmentation
land use changes
landscape metrics
Opis:
The paper analyzes the changes of forest fragmentation in the Western Pomerania region (NW Poland). The analysis was carried out basing on maps from 16th and 18th century as well as 1930s, when the forest cover in the studied area was the lowest. The historical area of forests was assessed on the basis on Hartnack utilization maps. The analysis of numerical maps was carried out in the GUIDOS program, which enables to evaluate the fragmentation of the forests through Morphological Spatial Pattern Analysis (MSPA) that describes the geometry of patches and their interconnectivity. The program calculated the forest areas classified for the seven categories according to their functions in the landscape (MSPA classes). In the 15th century the forests coverage was around 52.5%. There was a significant loss of forest area between the 16th and 18th century, and in the 18th century they occupied 24.7% of the researched area. Because of the economic changes in the country that took place after the World War II, the forest area in Pomerania increased to 33.7%. It was found that changes in the forest area in the examined period resulted in a decrease in the area classified as forest interior (CORE) and an increase in the boundary area (EDGE). Taking into account the equidistant of 1 km², the area occupied by the core patches dropped in the analysed period from 59.9% to 35.6%. At the same time the spatial isolation of many patches increased, which was reflected in an increase in the area classified as ‘islands' (ISLET). Their share in relation to the entire forest area increased from 4.4% to 23.6%. This could be particularly seen in the area of Pyrzycko−Stargardzka Plain and Choszczno Lakeland, where in the 1930s the so−called forest islands constituted the entire forest area of these mesoregions. The MSPA analysis enabled to specify forest patches classes, which can be useful for landscape characterization, including the patch and corridor model. The fragmentation of forests can be objectively assessed using GUIDOS and it can make the output results obtained in GIS programs complete.
Źródło:
Sylwan; 2015, 159, 07; 610-616
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charakterystyka leśnego okresu wegetacyjnego w Polsce na podstawie wybranego scenariusza zmian klimatu
Characteristics of the forest growing season in Poland on the basis of selected scenario of climate changes
Autorzy:
Dragańska, E.
Szwejkowski, Z.
Cymes, I.
Panfil, M.
Powiązania:
https://bibliotekanauki.pl/articles/987189.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Polska
lasy
okres wegetacji
dlugosc okresu wegetacji
zmiany klimatyczne
scenariusze zmian klimatu
forest vegetation period
climate changes
Opis:
The paper presents comparative characteristics of the length as well as start and end dates of the forest vegetation period (FVP) in the years 1981−2010 determined on the basis of the average daily air temperature and data generated for the conditions of two−fold higher CO2 concentration. To simulate meteorological data for that conditions, we applied the WGENK data generator, considering assumptions of GISS Model E scenario of climate change. The results showed that the average start date of FVP in Poland in the period of 1981−2010 was April 25th, while the average end date of FVP was October 10th. The average length of FVP for Poland equalled 165 days. It was discovered that, on average, the FVP start accelerated by 8 days per 30 years and the FVP end was slightly delayed by 3 days per 30 years. During the analyzed period, the FVP in Poland extended by 10 days on average. According to the applied scenario of the climate change, the trend indicates a possible increase in the FVP by 30 days when compared to the present state. The FVP may start 2−3 weeks earlier and finish 1−2 weeks later than presently. The generated data pointed at April 9th as the average date of the FVP start and October 24th as the date of its end.
Źródło:
Sylwan; 2017, 161, 04; 303-311
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza wybranych czynników w procesach globalizacyjnych i ich wpływ na kierunki zmian w światowym leśnictwie. II. Zasoby leśne oraz funkcje pełnione przez lasy w skali globalnej
Analysis of selected factors in the globalisation processes and their impact on trends in global forestry. II. Forest resources and functions performed by forests on a global scale
Autorzy:
Paschalis-Jakubowicz, P.
Powiązania:
https://bibliotekanauki.pl/articles/1009239.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
globalizacja
lasy
funkcje lasu
zasoby lesne
roznorodnosc biologiczna
naturalnosc
dynamika zmian
global forestry
dynamics of changes in forest resources
Opis:
The paper presents results of studies relating to the changes in the global forestry under the influence of various global factors. The results of the analysis include the current status and dynamics of changes in forest resources, the intensity of the functions performed by forests of the world, the extent of use and market of wood resources and non−wood products.
Źródło:
Sylwan; 2010, 154, 02; 75-87
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kierunki modyfikacji statusu Lasów Państwowych w Polsce
Trends in modification of the status of the State Forests in Poland
Autorzy:
Szramka, H.
Adamowicz, K.
Powiązania:
https://bibliotekanauki.pl/articles/989041.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
gospodarka lesna
Panstwowe Gospodarstwo Lesne Lasy Panstwowe
status organizacyjno-prawny
zarzadzanie
kierunki zmian
forest economics
legal status
organisation
changes trend
Opis:
Over the last years, criticism of the State Forests policy has been becoming more and more frequent in the press. For that reason it is very important to inspire changes in the State Forests organisation system that will result in its adaptation to the changing requirements of the social market economy. From the economic point of view one of the most important problem is that the State Forests is an economic organisation without legal personality. This fact facilitates unjust criticism of this entity that leads to restriction in its economic activity and eventually decreases maximum gains from its resources. We present trends of changes from status quo across legitimate company to joint stock union and the budget unit. It is proposed to confer legal personality on the forest economic units so they become legitimate companies. Moreover it is also suggested to use the State Forests profits as evaluation criteria of its economic activity. The generated profits should be sufficient to protect owner (i.e. the state) interests and is intended to implement them to achieve important social and economic features. In addition, a new motivation system based on the incomes considering the interest of the state, company and the employers should be developed. In order to reduce conflicts that arise from limited ability to use environmental and social functions, efforts should be made to precisely determine leading functions of chosen forest areas. The main goal of the proposed legal and organizational reform of the State Forests is to create conditions to generate higher legal revenues from various from of forest activity and allocate them for implementation of non−economic forest functions. This would make possible to achieve greater social acceptance of actions made by the franchise.
Źródło:
Sylwan; 2017, 161, 05; 355-364
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmiany powierzchni leśnych na terenie miasta i gminy Krotoszyn w latach 1793-2005
Changes in the forest cover in the town and commune of Krotoszyn in the years 1793-2005
Autorzy:
Macias, A.
Szymczak, M.
Powiązania:
https://bibliotekanauki.pl/articles/1008626.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
gmina Krotoszyn
miasta
Krotoszyn
lasy
kompleksy lesne
zmiany powierzchniowe
fragmentaryzacja lasu
lata 1793-2005
forest cover
changes
fragmentation
archival topographic maps
krotoszyńska plate
Opis:
The aim of this study was to show the changes in forest cover in the town and commune of Krotoszyn in the last 200 years. The analysis of topographic maps, with the use of landscape indicators showed that despite the relative stability of the size of forest area from 1829 to the present, significant changes in their structure caused by human activity occurred.
Źródło:
Sylwan; 2012, 156, 09; 710-720
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmiany struktury sortymentowej drzewostanów sosnowych I bonitacji w Nadleśnictwie Pisz
Changes of assortment structure of Scots pine stands of Ist site index class in Pisz Forest District
Autorzy:
Lewandowska, M.
Stępień, E.
Powiązania:
https://bibliotekanauki.pl/articles/991719.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Nadlesnictwo Pisz
drzewostany sosnowe
drzewostany I bonitacji
struktura sortymentowa
wiek drzewostanu
sortymenty drewna
assortment structure
aging process
changes
homologous series of stands
Opis:
In spite of the growing importance of the protective and social functions of forests, their productive function, including production of raw wood with a diversified assortment structure, is still prominent. Changes in the assortment structure depend to a large extent on tree species, habitat conditions and intensity of tending treatments. However, for the temporal organization of forest management, it is essential to recognize the dynamics of these changes in relation to stand age. The paper contains an analysis of quantitative and qualitative changes in the assortment structure of the Ist site index pine stands in the Wilcze Bagno Forest Compartment (Pisz Forest District), depending on the length of the primary production of standing timber. Data from 10 forest stands similar in terms of habitat, stand density and anagement treatments were taken for analysis. These stands form a homologous series ranging in age between 40 and 130 years.
Źródło:
Sylwan; 2013, 157, 06; 412-418
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stopień uszkodzenia drzewostanów jodłowych Beskidu Niskiego
Degree of damage to silver fir stands in the Beskid Niski Mts.
Autorzy:
Dmyterko, E.
Bruchwald, A.
Powiązania:
https://bibliotekanauki.pl/articles/989946.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewostany jodlowe
uszkodzenia drzewostanow
jodla pospolita
Abies alba
uszkodzenia drzew
korony drzew
reakcje przyrostowe
warunki srodowiska
radial increment
environmental changes
primary crown
secondary crown
abies alba
Opis:
The main aim of the research was to study trees growth responses to the changing environmental conditions and to assess the degree of damage to trees taking into consideration their secondary crown. Based the material from plots established in 12 silver fir stands (tab.), chronologies were developed for trees in various age classes (fig. 1). 1950 saw a downward trend in the radial growth that continued till 1985, to be followed by an upturn lasting till 2000, when the radial growth stabilised. No significant changes in tree−growth were observed in the group of the youngest trees. Three types of growth response to environmental changes (positive, neutral and negative) were distinguished in the last three 15−year−long periods. In years 1970−1984 the largest proportion of firs indicated negative growth responses, while firs with positive response dominated in the period 2000−2014 (fig. 2). The period 1970−2014 saw a steady increase in the mean value of growth responses. The assessment of the top−crown growth (feature B) showed that more than 50% of the trees showed inhibited growth (fig. 3). The assessment of tree vitality (feature C) confirmed the dominance of trees with moderate crown vitality. The vitality of the secondary crowns (Zw) situated below the primary crowns (Zp) of firs was assessed on the basis of crown density and its length (formula [1]). Incorporating Zw in the assessment of tree damage (formula [2]) resulted in an increase in the vitality of the whole crown (Z) (fig. 4). Based on the defoliation, 73% of trees were found to be within damage class 2 (fig. 5). Another method of damage to trees determination was adopted (formula [3]) to assess the damage to fir stands and showed that the largest proportion of trees was with moderate damage (fig. 6). The damage index values obtained with this method were lower compared to the method that considers the defoliation exclusively. Even lower index values were obtained while using the method based on both damage index W and tree−growth response. Of the three discussed damage assessment methods, the most accurate is the method based on damage index Wz, taking into account the growth response of the entire crown (Z).
Źródło:
Sylwan; 2015, 159, 11; 893-904
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charakterystyka zmian liczebności cetyńców (Tomicus piniperda L. i T. minor Hart.; Coleoptera: Scolytidae) w wybranych drzewostanach sosnowych Nadleśnictwa Tuczno, w latach 1996 - 2003
Characterisation of changes in abundances of pine-shoot beetles (Tomicus piniperda L. and T. minor Hart.; Coleoptera: Scolytidae) in selected pine stands of the Tuczno Forest District in the years 1999-2003
Autorzy:
Płatek, K.
Powiązania:
https://bibliotekanauki.pl/articles/1024008.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
zmiany liczebnosci
drzewostany sosnowe
Tomicus minor
Tomicus piniperda
owady
szkodniki roslin
kornikowate
Scolytidae
cetyniec mniejszy
cetyniec wiekszy
lesnictwo
Nadlesnictwo Tuczno
pine−shoot beetle
tomicus
population
changes in abundances
Opis:
The objective of the studies was to characterise the population dynamics of pine−shoot beetles (Tomicus piniperda L. and T. minor Hart.; Coleoptera: Scolytidae) and to evaluate differences in their abundances in different parts of selected pine stands. Beetle abundances were monitored using pheromone traps with Tomodor dispenser distributed on control plots over a total area of about 400 hectares. Observations indicated a high dynamics of beetle abundances in subsequent years, as well as a high spatial variation in beetle abundances within the study area. Besides, it was shown that changes in pine−shoot beetle abundances in the stands under study were, to a great extent, asynchronic.
Źródło:
Sylwan; 2004, 148, 09; 60-67
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmiany roślinności żyznej buczyny karpackiej z miesiącznicą trwałą Lunaria rediviva na podstawie analizy warstwy zielnej (Góry Słonne, Karpaty Wschodnie)
Changes in vegetation of fertile Carpathian beech forests with perennial honesty Lunaria rediviva based on analysis of the herb layer (Slonne Mountains, Eastern Carpathians)
Autorzy:
Durak, T.
Powiązania:
https://bibliotekanauki.pl/articles/973990.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
zmiany skladu gatunkowego
Góry Słonne
zioła
leśnictwo
zbiorowiska roślinne
Karpaty Wschodnie
drzewostany bukowe
zbiorowisko Dentarium glandulosae-Fagetum lunarietosum
beech forests
changes in forest
ground vegetation
species groups
Eastern Carpathians
Opis:
Recently, the assessment of the degree and direction of changes in Carpathian forests has become a highly important subject. This study presents a floristic comparison between fertile Carpathian beech forest with perennial honesty surveyed in 1972−1973 and 2005−2008. The aim of the work is to determine the changes occurring in managed forests, based on the herb vegetation species. Changes were tested on community, semi−permanent sampling plot and species levels. The changes suggest a drop in humidity and fertility of the soil and an increase in light exposure. Also, an increase in biodiversity and species richness was observed. On the other hand, statistical analysis of the ecological groups of species indicated an ongoing process of reconstruction of the species structure, leading to a diminishment of the biological distinctiveness of the studied phytocenoses, and consequently to beech forest homogenization.
Źródło:
Sylwan; 2011, 155, 02; 120-128
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Diagnozowanie stanu zdrowotnego drzew świerka i jodły na podstawie oceny patologicznych zmian drewna korzeni grubych
Diagnosing the health condition of spruce and fir trees on the basis of pathological changes in coarse root wood
Autorzy:
Stępień, E.
Powiązania:
https://bibliotekanauki.pl/articles/1008708.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewa lesne
swierk
Picea
jodla
Abies
stan zdrowotny drzew
diagnostyka
korzenie grube
metody badan
badania makroskopowe
przewodnictwo elektryczne
pathological changes
root wood
spruce
fir
macroscopic measurement
electrical conductivity
crown thinning
radial increment
Opis:
The paper contains a description and results of direct and indirect methods for assessing pathological changes in the zone of coarse root wood of spruce and fir trees. It also provides an evaluation of the effect of the type of changes and width of the unchanged wood zone on the electrical conductivity. The macroscopic analysis was compared with the results of electrical current measurements and the effect of the detected changes on crown condition and diameter increment of trees.
Źródło:
Sylwan; 2012, 156, 08; 599-606
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Próba oceny wpływu szerokości szlaków turystycznych na otaczające je środowisko lasu
An attempt to assess the effect of tourist trail width on adjacent forest environment
Autorzy:
Skłodowski, J.
Bartosz, S.
Dul, L.
Grzybek, D.
Jankowski, S.
Kajetanem, M.
Kalisz, P.
Korenkiewicz, U.
Mazur, G.
Myszek, J.
Ostasiewicz, M.
Primka, B.
Puczyłowska, I.
Radzikowski, M.
Roeding, P.
Serek, B.
Powiązania:
https://bibliotekanauki.pl/articles/1009663.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
turystyka
zwiezlosc gleb
wskazniki ekologiczne
oddzialywanie na srodowisko
wysokosc
runo lesne
lasy
erozja gleb
lesnictwo
szlaki turystyczne
tourist trails
environmental changes
soil compaction
erosion
height of herbaceous vegetation
plant life forms
indicator figures
Opis:
The impact of narrow (up to 2 m), medium (up to 3.5 m) and wide (>3.5 m) tourist trails on the surrounding environment was investigated. On wide trails, the value of soil erosion and compaction indices was found to be the highest, while the herb height index was the lowest indicating the greatest impact of wide trails on the environment. The phytosociological relevés were used to determine ecological indicator figures. Wide trails were characterized by higher thermal and continentalism indices and lower pH and trophic indices. The proportion of therophytes and geophytes was higher, while of hemicryptophytes, phanerophytes and chamaephytes on wide trails were lower than on medium and narrow trails. All the analysed indices pointed to a stronger impact of wide trails on the environment in comparison with medium and narrow trails.
Źródło:
Sylwan; 2009, 153, 10; 699-709
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Różnorodność gatunkowa jako wskaźnik przemian roślinności w bieszczadzkiej kwaśnej buczynie górskiej
Plant species diversity as an indicator of vegetation changes in acidophilous mountain beech forest
Autorzy:
Durak, T.
Powiązania:
https://bibliotekanauki.pl/articles/973949.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
Bieszczady Zachodnie
leśnictwo
zbiorowiska leśne
zmiany użytkowania
kwaśna buczyna górska
runo leśne
róznorodność gatunkowa
wskaźnik równomierności
liczba gatunków
wskaźnik Shannona H
diversity indices
evenness index
changes in forest
forest regeneration
eastern carpathians
Opis:
The intensity of disturbance plays a key role in shaping the biodiversity and hence it is a good tool for assessing community changes occurring in the Western Bieszczady, an area depopulated after World War II. Based on sampling of acidophilous mountain beech forest phytocoenosis repeated after 50 years, an analysis of plant biodiversity changes was conducted. The study focused on changes in the number of species, Shannon’s indicator, spatial distribution and coverage of specific ecological groups of species. The results confirm an undergoing process of regeneration of straitened phytocoenoses from 1958−1961, in which a slow improvement of the trophic conditions can be observed.
Źródło:
Sylwan; 2011, 155, 12; 843-850
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł

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