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Wyświetlanie 1-15 z 44
Tytuł:
Zróżnicowanie izolatów Phytophthora plurivora z czterech rzek przepływających przez tereny leśne
Occurrence and differentiation of Phytophthora plurivora isolates detected from four rivers running through forest areas
Autorzy:
Orlikowski, L.B.
Trzewik, A.
Ptaszek, M.
Powiązania:
https://bibliotekanauki.pl/articles/1006250.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
tereny lesne
rzeki
rzeka Korabiewka
rzeka Okrzesza
rzeka Rawka
rzeka Zwierzynka
woda
mikroorganizmy
grzyby
Phytophthora plurivora
izolaty grzybowe
zroznicowanie genetyczne
wystepowanie
chorobotworczosc
phytophthora plurivora
occurrence
colonization
genomic diversity
Opis:
Phytophthora plurivora was isolated from 4 rivers running through forest areas independently from detection period. All isolates colonized rhododendron leaf blades, but necrosis spread faster when cultures obtained from October to December were used for plant tissues inoculation. Obtained results showed genomic diversity of P. plurivora isolates. The level of genetic similarity between them varied from 54 to 94%. No correlation between genetic differentiation and pathogenicity of tested isolates was found.
Źródło:
Sylwan; 2012, 156, 11; 819-824
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ekonomiczne aspekty prowadzenia linii elektroenergetycznych przez tereny leśne
Ehkonomicheskie voprosy prokladki ehnergeticheskikh linijj cherez lesnye territorii
Economic aspects of leading electrical supply line trough forest areas
Autorzy:
Trojak, T.
Powiązania:
https://bibliotekanauki.pl/articles/810892.pdf
Data publikacji:
1973
Wydawca:
Polskie Towarzystwo Leśne
Źródło:
Sylwan; 1973, 117, 10
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmiennosc zawodnienia terenow lesnych w Obszarze Gorniczym Szczyglowice
Autorzy:
Plewniak, J.
Powiązania:
https://bibliotekanauki.pl/articles/813581.pdf
Data publikacji:
1997
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
zawodnienie
tereny lesne
obnizenia poeksploatacyjne
prognozowanie
Obszar Gorniczy KWK Szczyglowice
lesnictwo
Nadlesnictwo Rybnik
Źródło:
Sylwan; 1997, 141, 10; 97-110
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Jakość wody z ujęć zlokalizowanych w terenach leśnych zarządzanych przez Nadleśnictwo Myślenice
Quality of water from the intakes located in the forest areas managed by the Myslenice Forest District
Autorzy:
Małek, S.
Jasik, M.
Durło, G.
Powiązania:
https://bibliotekanauki.pl/articles/985685.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
tereny lesne
zlewnie lesne
ujecia wody
jakosc wody
Nadlesnictwo Myslenice
water quality
water intakes
alimentation areas
Opis:
We analysed quality of water from the intakes in the Myślenice Forest District (S Poland). 8 springs were selected: 4 were located in the Natura 2000 area on the Mt. Polica and another 4 originated from the Harbutowice surroundings. Additionally water from 3 places on streams was gathered: 2 points were located in the ‘Las Gościba’ nature reserve and 1 in the water intake for the residents of Sułkowice municipality. Water samples were collected at the beginning of each month in the year 2016. The water temperature and flow rate were measured in the field. The hydrogen ion activity (pH), electrolytic conductivity (PEW) as well as the content of NH4+, Na+, K+, Ca2+, Mg2+, Cl–, NO3–, SO4 2–, PO4 3– and F– were determined with Dionex 5000 ion chromatograph. We also marked the content of P, K, Ca, Mg, Na, Fe, Zn, Mn, Cu, Cr, Cd, Ni and Pb using the ICP−OES emission spectrometer. All analyzes were carried out in the Laboratory of Geochemistry of Forest Environment and Areas Designated for Reclamation of the Forest Faculty of the University of Agriculture in Krakow. Water quality classification was made due to the tested properties in accordance with Regulation of the Minister of the Environment of 21st July 2016 on the classification of the state of surface water bodies and environmental quality standards for priority substances. The study confirmed differences in electric conductivity and the content of NH4+, SO4 2–, NO3 – due to the development of alimentation areas and the location of water collection.
Źródło:
Sylwan; 2019, 163, 04; 328-337
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Określenie rzeczywistej powierzchni lasów w Polsce na podstawie dostępnych danych przestrzennych
Determination of the actual forest area in Poland based on the available spatial datasets
Autorzy:
Hosciło, A.
Mirończuk, A.
Lewandowska, A.
Powiązania:
https://bibliotekanauki.pl/articles/989623.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
lasy
tereny lesne
powierzchnia lasow
dane przestrzenne
Polska
forest cover
forest land definitione
forest inventory
datasets
Opis:
Several studies discussed a disagreement concerning forest extent in Poland between land cadaster and status on the ground. The aim of the paper was to assess the actual forest extent in Poland based on an existing spatial datasets such as: Digital Forest Map (covering explicitly the State Forests), Topographic Database, Database of Parcel Identification System, High Resolution Layer (Copernicus Land Monitoring product based on classification of satellite data) and National Forest Data Bank. The geospatial data analyses were preceded by an accuracy assessment of the available datasets, which allowed to assign weights to each of the dataset. The result of this project was the actual forest extent map, which refers to the national definition of forest as defined in the Forest Act of 28 September 1991 (forest by definition is a homogeneous area of 0.1 hectares). This includes all forms of ownership forests and areas that are forested, but officially recorded as non−forest. Moreover, the map of the forest extent under the Kyoto Protocol, including areas that meet the criteria of actual forest extent map and additionally forest areas designed or used for housing, recreation, infrastructure, and other industrial and agricultural areas (e.g.: permanent crops – orchards) were determined. The results confirmed that the actual forest extent is higher by almost 800 thousand hectares then the official statistics provided by the Central Statistical Office of Poland. According to the official statistics forest in Poland covers 29.4% of the country, however this study revealed that 32% of the country, considering the national forest definition, and 33.5%, considering the forest definition under the Kyoto Protocol, is occupied by forest. It showed the need for the land cadaster update. Precise information on spatial distribution of forest extent is crucial for the national purposes i.e. reporting, implementation of the National Afforestation Program and also for the international commitments under the climate convention to determine the accurate forest carbon content and carbon dioxide sequestration.
Źródło:
Sylwan; 2016, 160, 08; 627-634
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Toponimy leśne na wojskowych mapach topograficznych z okresu PRL
Forest toponyms on the military topographic maps from the PRL period
Autorzy:
Olenderek, T.
Powiązania:
https://bibliotekanauki.pl/articles/994859.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
toponimia
tereny lesne
mapy topograficzne
nazwy miejscowe
Panstwowy Rejestr Nazw Geograficznych
Polska
forest toponym
topographic map
national register of the geographical names
Opis:
The article describes the problems of the names related to forestry, which are presented on topographic maps. The list of forest toponyms prepared basing on 1:50000 military maps from the PRL period is presented. The names on the list are compared with ones from the National Register of the Geographical Names.
Źródło:
Sylwan; 2012, 156, 12; 923-929
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ochrona lasów w obliczu postępującego procesu urbanizacji na przykładzie gminy Jabłonna
Protection of forests in the face of the progressive urbanization process – Jablonna commune case study
Autorzy:
Budnicka-Kosior, J.
Janeczko, E.
Kwaśny, L.
Woźnicka, M.
Powiązania:
https://bibliotekanauki.pl/articles/979610.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
gmina Jablonna
miejscowy plan zagospodarowania przestrzennego
urbanizacja
zmiany uzytkowania gruntow
tereny lesne
lasy
ochrona lasu
local plan
area purpose change
suburbanization
Opis:
This paper aims to assess the degree of forest areas protection in the face of the growing problem of suburbanization (so−called ‘spilling of cities’). The problem particularly affects districts (often rural) in large cities suburban zones. These districts can often characterize with rich natural and landscape conditions. Because of the new residents’ inflow and the fulfillment of their needs, these municipalities may lose their current character. The local government, as an area host, having appropriate tools for shaping space, has a huge impact on the optimal use of its individual elements. Only rational spatial management, based on high standards of planning and spatial development, can stimulate the spatial development of a particular area and appropriately protect valuable space elements at the same time. The strategic documents of the Jabłonna commune emphasize that the dispersion of the buildings in the district area is one of the main threats to the landscape. This threat, increasing because of the investments, concerns particularly forest areas. Bearing in mind such a negative phenomenon for the space, which is the uncontrolled and progressive process of urbanization, this work analyses the existing local plans for the rural commune of Jabłonna in terms of forest protection against excessive urbanization pressure. The analysis of the plans enabled to estimate the area of forest areas for other than forest purposes (47.7 ha). An analysis of the destination type and arrangements concerning forests has been made, taking into account the state of ownership and the main features of the forest stand based on the information obtained from the forest data bank. The results received indicate that the largest number of forest areas in the Jabłonna district are dedicated for single−family housing (81.6%) and accompanying road infrastructure (11.5%). The local plans analysis allows to state that the local government adopts conservative and protective spatial policy in relation to forest areas administered by the State Forests, which assumes the preservation of valuable and high greenery and prohibits the logging. The largest share of forests that change their purpose in the local plans of the Jabłonna commune are private forests (42.7 ha) with average stand age of 40−60 years.
Źródło:
Sylwan; 2019, 163, 02; 150-157
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Semiwariancje tekstury obrazów satelitarnych Landsat TM obszarów leśnych
Semivariances of Landsat TM satellite imagery texture of forested areas
Autorzy:
Zawadzki, J.
Cieszewski, C.J.
Zasada, M.
Powiązania:
https://bibliotekanauki.pl/articles/972817.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
zdjecia satelitarne
tereny lesne
interpretacja
teledetekcja satelitarna
semiwariancja
Landsat TM
lesnictwo
semivariance
semivariogram
geostatistics
textural classification
remote sensing
Landstat TM
Opis:
The paper presents selected applications of the geostatistical methods for remote sensing studies of forest ecosystems. The texture of the remote sensing images of the forests can be highly complex, but at the same time it is very useful for interpretation of these images. We explored differences on semivariances calculated from transects of the Landsat TM images associated with images of young, middle−aged, old, and natural versus planted stands, as well as compared semivariances for loblolly pine (Pinus taeda L.) and longleaf pine (Pinus palustris Mill.) in Georgia, USA. We analyzed the imagery data in conjunction with ground measurements. The results showed that in spite of the relatively low Landsat TM resolution (30m), the semivariances might give useful additional information about the above−mentioned classes. The semivariances for loblolly pine depend on the age as well as on the origin of the forest stand (natural vs. planted). On the other hand, because of the low−resolution, the classical parameters of a range of semi−variances are rather difficult for classification. However, we found important differences for sill values as well as for semivariance values for the distances of a few lags. These parameters seem to be useful for forest stand discrimination. Significant differences were also found between semivariances calculated from loblolly pine and longleaf pine stands.
Źródło:
Sylwan; 2003, 147, 07; 40-52
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wykorzystanie opisów glebowych zawartych w operacie urządzenia lasu w planowaniu sieci dróg leśnych
Using soil descriptions from the forest management plans in forest road network planning
Autorzy:
Gołąb, J.
Plewniak, J.
Słowik-Opoka, E.
Powiązania:
https://bibliotekanauki.pl/articles/989808.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drogi lesne
siec drogowa
planowanie
tereny lesne
badania gleboznawcze
operat urzadzeniowy
wykorzystanie
forest road network
forest management plan
soil characteristics
suitability for building
Opis:
The paper analyses the possibilities of using the forest soil descriptions included in the forest management plan to draw up an initial characterization of the area in terms of their usefulness for the forest road building. That kind of data may be used in the planning of forest road network in preliminary location concept of road sections. Knowledge in the subject of the spatial distribution of ground with specific physical properties enables us to offer such options, that are likely to ensure the stability of built facilities and also lower costs of implementation and operating as well as reduce the environmental costs of the investment. The paper shows the possibilities and ways to determine the basic characteristics of the ground, such as: the type of ground, filtration coefficient and vulnerability to frost heave. Forest soil descriptions based on macroscopic studies should be regarded as insufficient. Use of the soil data is possible and gives the desired effect only when the results of the grain size analysis can be used. On the basis of these data, classification of the ground can be performed and one can determine the basic indicators of the suitability of the tested materials. We used twelve soil samples with the diverse texture (10−89% sand, 7−83% silt and 4−29% clay). On the basis of complete pedological data collected in accordance with the recommendations of the Forest Management Instruction, it was possible to classify the material in terms of engineering and calculation of relevant indicators and characteristics. It should be noted that this is the initial characteristics of the soil and as such it is not a substitute for detailed research required for the execution stage of the project of specific road sections.
Źródło:
Sylwan; 2015, 159, 06; 461-468
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Definicja lasu w ujęciu krajowym i międzynarodowym oraz jej znaczenie dla wielkości i zmian powierzchni lasów w Polsce
National and international definition of forest and its importance for the forest area in Poland
Autorzy:
Jabłoński, M.
Powiązania:
https://bibliotekanauki.pl/articles/989804.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
lasy
tereny lesne
powierzchnia lasow
definicje
Polska
Organizacja Narodow Zjednoczonych
Protokol z Kioto
forest definition
forest cover
land use
forest expansion
afforestation
kyoto protocol
Opis:
Sustainable forest management, the leading topic in forest and environmental policy since the 1990s, has required an appropriate tools for both clarification of general principles and measurement of its progress. Many of indicators developed for these purpose are based on forest area. However, definitions of forest are not compatible, especially on national and worldwide scale. Definition of forest applied by FAO refers to crown cover and land use, while definition adopted for reporting under Kyoto Protocol refers only to the occurrence of trees. Polish Act on Forest applies the destination of land use as a determinant of forest. Paper analyses the process of forest area assessment in Poland for the purpose of national as well as FAO and UNFCCC reporting. Natural expansion of trees on abandoned agriculture land, still classified as the agriculture areas in cadastral system, was recognized as the biggest challenge of forest area assessment in Poland. Although natural succession is described by many authors, the total area subjected to this process is unknown. According to the FAO and Kyoto Protocol rules such areas should be reported as forests. As a consequence, forest area in Poland could be at least a few hundred thousand hectares higher than reported in the last assessments basing only on cadastral system. The proper classification of forests not recorded in the cadastral system would also be important challenge, otherwise between forest area on country and international level will be a huge discrepancy. But, there are some areas classified as a forest in Poland, which probably should not be included within FAO and Kyoto reporting. However, the most important topic concerns the possibility of identification of afforested areas, submitted under article 3.3. of Kyoto Protocol, basing on forest area changes between 1989 and 2012. One should recognise if afforested area is not overestimated using such approach, as a result of modification of forest definition in Poland in 1991. Additional question concerns the forest lands included into cadastral system after 1990, but afforested or resulting from natural succession occurring before that time, which currently are reported as afforestation under article 3.3. of Kyoto Protocol.
Źródło:
Sylwan; 2015, 159, 06; 469-482
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zróżnicowanie zespołów ryb w małych rzekach położonych na terenach zalesionych i niezalesionych
Diversity of fish fauna in small rivers located in forested and non-forested areas
Autorzy:
Rechulicz, J.
Płaska, W.
Powiązania:
https://bibliotekanauki.pl/articles/989259.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
tereny lesne
tereny niezalesione
zlewnie rzek
cieki wodne
rzeki
fauna
ryby
bogactwo gatunkowe
wskazniki roznorodnosci
zageszczenie zwierzat
ichthyofauna
species richness
streams
habitat
forest catchment basin
Opis:
The knowledge on the ichthyofauna community in forest complexes in our country is mainly limited to few information on fish species found in rivers and reservoirs located in the protected areas. Hence, the aim of present study was to evaluate the importance of forested and non−forested areas, which include small rivers, on the occurrence of fish communities. The main criteria of evaluation were species richness, biodiversity and density of fish from rivers located in forested and non−forested areas in Roztocze and Puszcza Solska (south−eastern of Poland). The 12 study sites in the two groups of small rivers located on forested and non−forested areas were chosen (tab. 1). The control fishing was performed by electrofishing using IUP−12 gear. The total of 779 individuals of fish and lamprey belonging to 22 species were caught during the study. In the sections of rivers located in non−forested areas we noted 18 species, while in the rivers in forested areas – 16 ones. The analysis of the abundance domination showed that the dominant species in the rivers sections on non−forested areas were perch, roach and gudgeon, while in rivers located in forested areas: gudgeon, dace and brown trout. Simultaneously, in abundance of fish fauna from rivers in forested area a significant share of eastern sculpin, burbot and European brook lamprey were noted. The fish communities from both habitats showed similar values of biological diversity indices, but slightly higher density was observed in the rivers located in non−forested areas. The fish species composition was highly dependent on the close surroundings of the watercourse and the type of riparian zone. For the habitats from river located in non−forested areas the common, associated with aquaculture and also invasive fish species were characteristic. However, in the rivers in wooded areas, the typical for small streams and the rheophilic fish species were more frequent. The results of present study showed, that the largest differences in the dominance in fish structure and indicators of fidelity to the habitat preferences between the groups of rivers were determined.
Źródło:
Sylwan; 2016, 160, 04; 344-352
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Określenie rozdzielczości przestrzennej wielospektralnych zdjęć satelitarnych optymalnej do detekcji martwych drzew na obszarach leśnych
Determining the spatial resolution of multispectral satellite images optimal to detect dead trees in forest areas
Autorzy:
Pluto-Kossakowska, J.
Osińska-Skotak, K.
Stereńczak, K.
Powiązania:
https://bibliotekanauki.pl/articles/989024.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
teledetekcja
lasy
Beskid Zywiecki
Nadlesnictwo Ujsoly
tereny lesne
drzewa martwe
detekcja
zdjecia satelitarne
zdjecia wielospektralne
rozdzielczosc przestrzenna
vhr image
vegetation index
multispectral analysis
image classification
Opis:
The mainstream of remotely sensed methodology for identifying the tree stand condition is based on spectral responses registered by a multispectral sensor as a digital image. The changes in spectral properties are caused by dying leaves, needles or whole trees. In further steps, the relationship between the spectral values (radiometry) registered in a multispectral satellite image and the health condition of trees should be determined. The most frequent situation includes the one whem dying stand (sensu single tree) occupies the area of <5 m². Therefore the remotely sensed data for determining sanitary conditions of trees must be of a very high spatial resolution (e.g. WorldView2 or 3, GeoEye−1, Pleiades) on one hand and at the same time favourable for the vegetation studies, i.e. utilizing suitable spectral bands and be of low acquisition cost (e.g. RapidEye, LANDSAT−7, ETM +, LANDSAT−8 OLI). Thus a compromise between spatial and spectral resolution should be found to answer the question at what resolution it is possible to clearly separate the damaged tree. The scope of the research included testing of selected methods of satellite image processing and analysis in terms of defining the optimal spatial resolution, which was performed on simulated images obtained for the area of the Beskidy Mountains (S Poland). Pixel size on simulated images was downgraded to the size corresponding to the currently functioning satellite systems. Consequently the obtained material for comparison was free from influence of external factors such as the differences in: time and weather conditions, the geometry of satellite image acquisition, light at the surface of the treetops and phenological vegetation. For each image we used vegetation indices (NDVI and GDVI) and supervised classification. These tests and the obtained results allowed to draw conclusions about the optimal satellite image resolution that can be used to detect damaged or dead stands.
Źródło:
Sylwan; 2017, 161, 05; 395-404
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wykorzystanie danych społecznościowej informacji geograficznej do monitorowania ruchu w przestrzeni leśnej
Application of the Volunteered Geographic Information data to monitor traffic in the forest area
Autorzy:
Ciesielski, M.
Stereńczak, K.
Balazy, R.
Powiązania:
https://bibliotekanauki.pl/articles/980308.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Panstwowe Gospodarstwo Lesne Lasy Panstwowe
lasy
tereny lesne
uzytkowanie sportowe
uzytkowanie rekreacyjne
ruch turystyczny
natezenie ruchu
monitoring
spolecznosciowa informacja geograficzna
system GPS
Sudety
sports application
gps
forest recreational function
the sudetes
Opis:
The purpose of this study was to present the possibilities of using available Volunteered Geographic Information (VGI) created by the users of OpenStreetMap program and sports applications such as GPies.com or Endomondo to monitor the traffic in the forest area. In addition, areas where, due to high traffic, potential conflicts between different user groups may occur, were marked out. The research area covered two mountain forest districts located in the Sudetes Mountains: Szklarska Poręba and Świeradów, which due to their tourist values and an extensive network of hiking and cycling trails arouse society’s interest. In the area, 2896 unique activities divided into cycling, running and hiking were registered. It was shown that 7.3% of the length of routes used by pedestrians, 13.6% of the length of routes for runners and 11.0% of the length of routes for cyclists are characterized by high intensity of traffic, while 30.3%, 28.4% and 37.7% of routes for the indicated groups, respectively, are characterized by medium intensity of traffic. On other routes, low intensity of utilization was observed. Existing hiking and cycling trails were pointed out as the most frequently used routes. The specially designed bicycle routes, the so−called ‘Single track’, located in the Świeradów Forest District, were popular among the users. The highest traffic occurred in the morning and afternoon, on weekends and in the summer months. According to the adopted assumptions, there is a high risk of conflicts between runners and cyclists at about 1.5% of the route length as well as 2.1% of the length of routes used simultaneously by pedestrians and cyclists. It should be stated that VGI data can be used to monitor traffic in forest areas and constitute one of the elements of the decision support system (DSS). A certain weakness of VGI data from the sports applications used in this study could be the lack of the possibility of creating user profiles. Consequently that causes lack of more detailed data on this subject (age, sex, etc.). The limitation in the data useage is the privacy policy, which allows downloading only such data that has been made available for public use in the application resources.
Źródło:
Sylwan; 2019, 163, 01; 80-88
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 44

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