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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:
Specjacja fosforu w leśnych glebach rdzawych na obszarach popożarowych
Phosphorus fractionation in forest Brunic Arenosols of post-fire areas
Autorzy:
Jonczak, J.
Olejarski, I.
Janek, M.
Powiązania:
https://bibliotekanauki.pl/articles/985713.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Nadlesnictwo Rudy Raciborskie
tereny popozarowe
gleby lesne
gleby rdzawe
gleby popozarowe
fosfor
specjacja chemiczna
phosphorus
sequential extraction
wildfire
brunic arenosols
leaching
Opis:
The studies on contents and profile distribution of total phosphorus and its fractions extracted according to the procedure of Hedley et al. [1982] in a modification of O’Halloran et al. [1987] in forest Brunic Arenosols of post−fire areas in the Rudy Raciborskie Forest District (S Poland) were undertaken. Five soil profiles developed from fluvioglacial sandy deposits of the Oder Glaciation were described and sampled 21 years after the fire occurrence and analyzed using standard procedures. Total content of the element was among typical for Brunic Arenosols of Poland, ranging from 683.1 to 880.4 mg/kg in Ofh horizons, from 154.2 to 566.5 mg/kg in mineral horizons affected by soil−forming processes and from 115.5 to 384.2 mg/kg in parent material. The content of distinguished phosphorus fractions varied, reflecting the effect of environmental factors and brunification soil−forming process. Residual fraction predominated in parent material, organic in O and most of A−horizons and bounded to sesquioxides in B−horizons. The observed proportions between residual fraction and sum of the remaining fractions were typical for soils of old−glacial areas, reflecting considerable degree of mineral substrate weathering. An effect of fire was not clear due to the lack of a reference soil. However, the studied soils showed some specific features, that can be explained by the influence of fire. Low content of fraction bounded to calcium and apatites is the first and elevated concentration of fraction bounded to sesquioxides in parent material is the other one. Profile distribution patterns of mentioned above fractions suggest leaching of phosphorus labile forms and their stabilization in deeper parts of the studied soils. This process could be initialized or accelerated by fire. Finally, it can be concluded, that studied properties of the contemporary soils are stronger influenced by pine forest vegetation than by fire before 21 years.
Źródło:
Sylwan; 2019, 163, 05; 396-406
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
Tytuł:
Aktualne możliwości zmechanizowanego pozyskiwania drewna w warunkach górskich
Current possibilities of mechanized logging in mountain areas
Autorzy:
Jodlowski, K.
Kalinowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/45422.pdf
Data publikacji:
2018
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
tereny gorskie
pozyskiwanie drewna
mechanizacja prac lesnych
maszyny lesne
harwestery
forwardery
technologia pozyskiwania
dobor maszyn
warunki terenowe
nachylenie stoku
adaptacja maszyn
Źródło:
Leśne Prace Badawcze; 2018, 79, 4
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena żywotności drzew oraz biomasy i morfologii systemów korzeniowych sosny zwyczajnej (Pinus sylvestris L.) wzrastającej na zrekultywowanym składowisku odpadów po flotacji rud cynku i ołowiu
Assessment of tree vitality, biomass and morphology of Scots pine (Pinus sylvestris L.) root systems growing on reclaimed landfill waste after zinc and lead flotation
Autorzy:
Pietrzykowski, M.
Woś, B.
Pająk, M.
Likus-Cieślik, J.
Powiązania:
https://bibliotekanauki.pl/articles/1293705.pdf
Data publikacji:
2017
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
odpady poflotacyjne
skladowiska odpadow
metale ciezkie
skladowisko odpadow poflotacyjnych ZGH Boleslaw
rekultywacja terenow
rekultywacja lesna
tereny zrekultywowane
drzewa lesne
sosna zwyczajna
Pinus sylvestris
zywotnosc drzew
biomasa
system korzeniowy
budowa morfologiczna
reforestation
technosols
stand
belowground biomass
heavy metals
Opis:
The stability of introduced stands depends not only on aboveground but also on the belowground biomass. Results from reclaimed sites often indicate good growth of the aboveground part of stands, but data on the development of root systems are still lacking. Our aim was to assess the vitality of trees, their biomass and the morphology of the root systems of Scots pine (Pinus sylvestris L.) introduced on reclaimed landfill waste after zinc and lead flotation in Bukowno (southern Poland). The landfill site was reclaimed 20 years ago and reclamation treatments involved isolation and covering with mineral substrate layers (110–150 cm thickness) which formed a technogenic soil profile. Four research plots (10×10m) were set up in pure pine stands where soil profiles consisted entirely of flotation waste. Trees on the plots were assayed according to the Kraft and IUFRO classification system. In total, 15 trees of average growth parameters and bio-sociological position (I and II Kraft class) were selected for biomass and root system analyses and the root systems were excavated, washed, measured, weighed and photographed. Our results support pine as a useful species in reforestation of post-mining areas. However, although pine trees were characterized by good vitality, their root systems were shallow and their depth reduced by up to 60 cm due to strong skeletal loamy substrate. Individual root biomass ranged from 1.2 to 9.1 kg and was comparable to pine root biomass on other reclaimed mining sites. This indicates that during restoration, the thickness of the substrate covering the flotation waste should be increased or the amount of skeletal substrate in the top layers of technosol reduced.
Źródło:
Leśne Prace Badawcze; 2017, 78, 4
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
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:
Aktywność enzymatyczna gleb na obszarach sztucznej i naturalnej regeneracji lasu po klęsce huraganu w północno-wschodniej Polsce
Soil enzymatic activity in artificially and naturally regenerated forests after wind damage in north-eastern Poland
Autorzy:
Olszowska, G.
Powiązania:
https://bibliotekanauki.pl/articles/1294052.pdf
Data publikacji:
2016
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
tereny pohuraganowe
drzewostany sosnowe
gleby lesne
ureaza
dehydrogenazy
aktywnosc enzymatyczna
wind damage
urease
dehydrogenases
forest soils
Opis:
The aim of the study was to describe biochemical reactions in the soil based on the activity of urease and dehydrogenases in Scots pine stands damaged during and differentially managed after hurricanes. Soil enzymatic activity was investigated in 2005 and again in 2013 for selected stands in the Pisz Forest District where wind damage occurred in 2002. Most of the damaged stands were cut down and replanted, but 445 ha were left untouched for study purposes. The investigated areas differed with respect to stand damage and management. The enzymatic activity correlated well with the content of organic matter which was higher in organic than in mineral soils. In the area left to regenerate naturally, dehydrogenase and urease activity was higher in 2013 compared to 2005, which suggests the improvement of site conditions. The values of the examined biochemical parameters were correlated with the type of forest regeneration, with the forest soil regeneration being higher in artificially than in naturally regenerated stands. Changes of soil enzymatic activity were correlated with the level of stand damage and the type of management after wind damage.
Źródło:
Leśne Prace Badawcze; 2016, 77, 2
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Jakość surowca sosnowego pochodzącego z terenów rekultywowanych dla leśnictwa na przykładzie zwałowiska odpadów po wydobyciu siarki w Piasecznie
Quality of Scots pine wood on the lands reclaimed for forestry - spoil heap after the exploitation of sulphur in Piaseczno case study
Autorzy:
Pająk, K.
Michalec, K.
Wąsik, R.
Kościelny, M.
Powiązania:
https://bibliotekanauki.pl/articles/989265.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
tereny przemyslowe
Kopalnia Siarki Piaseczno
zwalowiska odpadow
zwalowiska zewnetrzne
rekultywacja lesna
drzewa lesne
sosna zwyczajna
Pinus sylvestris
drewno sosnowe
jakosc drewna
quality
raw wood
reclamation
wood defects
pinus sylvestris
Opis:
The research was conducted on the external spoil heap of the 'Piaseczno' Sulphur Mine (southern Poland). This paper aimed to determine the quality of wood in 40−year−old Scots pine trees planted onto the external spoil heap of the mine, in the scope of forest reclamation, depending on the soil substrate and employed reclamation treatments. The investigations were carried out at one−are circular trial plots. A total number of 17 study plots was established, located on: Quaternary loose sands (PL), mixed Quaternary sands and Tertiary Krakowieckie clays (PI), and mixed Quaternary sands and Tertiary clays after an intense initial fertilisation (PIN). Measurements performed at the study plots included determination of diameter at breast height of every tree with a diameter ≥7 cm and height of every tree. We classified the wood of standing trees, including a specification of class or quality and dimension group of the butt−end part of the trunk, identifying types and variants of defects that determined the results of quality classification of raw wood. We found significant differences in trees dimensions between soil substrates. No significant difference was found for fertilised substrates, therefore it may be assumed that fertilising of more fertile soils was an unnecessary treatment. The quality of pine wood was mostly affected by knots and curvatures. An impact of knots on the results of wood classification increased with fertility of soil substrate. With regard to curvatures, the opposite trend was recorded. The frequency of occurrence of the above−mentioned defects was determined not only by the habitat type, but also by the manner of forest management. To reduce the frequency of occurrence of the defects in question in the reclaimed areas, an appropriate closure of stands should be maintained and adequate tending treatments should be performed competently and skilfully, as this is done in commercial stands.
Źródło:
Sylwan; 2016, 160, 04; 284-291
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:
Porównanie zagęszczenia przędziorkowatych (Tetranychidae) i dobroczynkowatych (Phytoseiidae) na dębie szypułkowym (Quercus robur L.) w lasach na obszarach naturalnym i przemysłowym
Comparing densities of spider mites (Tetranychidae) and predatory mites (Phytoseiidae) on the common oak (Quercus robur L.) in forests of natural and industrial areas
Autorzy:
Lubiarz, M.
Powiązania:
https://bibliotekanauki.pl/articles/45573.pdf
Data publikacji:
2016
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
drzewa lesne
dab szypulkowy
Quercus robur
roztocze
przedziorkowate
Tetranychidae
dobroczynkowate
Phytoseiidae
zageszczenie
wystepowanie
tereny przemyslowe
obszary naturalne
Źródło:
Leśne Prace Badawcze; 2016, 77, 3
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
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:
Gatunki Phytophthora i Pythium w glebie i w korzeniach dębu szypułkowego na terenach popowodziowych w Nadleśnictwie Wołów
Phytophthora and Pythium species in soils and in roots of the pedunculate oaks in periodically flooded areas in Wolow Forest District
Autorzy:
Kwaśna, H.
Szewczyk, W.
Behnke-Borowczyk, J.
Powiązania:
https://bibliotekanauki.pl/articles/989782.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
tereny pokleskowe
tereny popowodziowe
drzewostany debowe
drzewa lesne
dab szypulkowy
Quercus robur
korzenie
gleby lesne
grzyby
Phytophthora
Phytium
wystepowanie
Nadlesnictwo Wolow
pedunculate oak
fungi
globisporangium
oomycota
flood
phytophthora
pythium
Opis:
Phytophthora and Pythium species (Oomycota) are known to be serious pathogens of forest trees. Little is known, however, about their presence in Polish oak forests and their role in the oak decline, especially in the flooded areas. The aim of this study was (1) to detect and compare populations of microorganisms from Oomycota and fungi in roots and soil of healthy and declining pedunculate 30−126 years old oak stands, which had been flooded by the Odra River for three months in 1997 and one month in 2010, (2) to demonstrate the relationship between different chemical factors of soil and the occurrence of microorganisms, and (3) to assess the contribution of Oomycota to oak decline. Study was carried out in Wołów Forest District (south−western Poland). Microorganisms were isolated from fine (1−5 mm in diameter) roots and non−rhizosphere soil collected from 0−50 cm horizon. Isolation procedure from roots included surface sterilization and plating the root segments on the nutrient agar. An oak leaf baiting method was used for isolation of Oomycota from soil. Identification of microorganisms was based on morphology and sequencing of the ITS1/2 rDNA. Oomycota was represented by: Globisporangium, Phytophthora and Pythium and fungi mostly by: Aspergillus, Chaetosphaeria, Cylindrocarpon, Mortierella, Mucor, Penicillium, Trichoderma and Umbelopsis. Globisporangium attrantheridium (syn. Pythium attrantheridium) occurred locally and was found in roots of only one flooded oak. This is the first record of this species on oak and in Poland. G. intermedium, P. gibbosa/P. gregata, P. plurivora and Pythium sp. were found in soil of flooded and non−flooded (control) oak stands. The organisms occurred in podzolized brown soils, brown alluvial soils and gley soils that had most nitrogen (21−60 mg/kg), various amounts of calcium (61.1−347.6 mg/100g) and moderate acidity (pH=3.85−4.2). There was often a significant association between exposure to flood and the health status of oak trees assessed by the scale of defoliation. Oomycota seemed to be only moderately associated with increased tree defoliation as a symptom of oak decline.
Źródło:
Sylwan; 2015, 159, 07; 531-539
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena stopnia uszkodzenia liści drzewostanów dębowych Nadleśnictwa Wołów dotkniętych klęską powodzi
Assessment of leaf damage in oak stands in the flood-affected Wolow Forest Division
Autorzy:
Kuzmiński, R.
Szewczyk, W.
Korczyński, I.
Łakomy, P.
Powiązania:
https://bibliotekanauki.pl/articles/1311485.pdf
Data publikacji:
2015
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
tereny pokleskowe
tereny popowodziowe
drzewostany debowe
drzewa lesne
dab
Quercus
defoliacja
liscie
uszkodzenia lisci
szkodniki roslin
owady
Nadlesnictwo Wolow
flood
defoliation
Wołów Forest Division
oak die-back
pest insects
oak stands
Opis:
This study examines the effect of flood on oak stands in the Wołów Forest Division by assessing the loss of leaf area due to insect feeding as determined in laboratory analyses of samples collected from standing trees. We compared stands, in which water stagnated for at least one month and stands with no water stagnation. It was found that the mean damage to the carbon assimilating organs of stands with stagnating water was lowered by approximately 6% compared to stands that were not affected by flood. Thus, no definite effect of flood contributing to losses of carbon assimilating organs in oak trees could be shown.
Źródło:
Leśne Prace Badawcze; 2015, 76, 3; 297-303
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Waloryzacja siedlisk obszarów górskich na podstawie Siedliskowego Indeksu Glebowego (SIGg)
Evaluation of the mountain sites on the basis of soil trophic index (SIGg)
Autorzy:
Brożek, S.
Lasota, J.
Blońska, E.
Wanic, T.
Zwydak, M.
Powiązania:
https://bibliotekanauki.pl/articles/989710.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
tereny gorskie
siedliska gorskie
siedliska lesne
waloryzacja
Siedliskowy Indeks Glebowy
site quality
sigg
mountain soils
Opis:
The correct assessment of the site conditions is the basis of the good management of forest areas. The aim of this study was to find a set of soil properties, which allow separating the diverse sites in terms of the soil productivity. We used 180 locations in the Carpathians and the Sudety Mountains for testing. The study plots were located in transects from the foothills to the top along the slopes, taking into account the variability of site conditions, geological substrate and exposition. The index was calculated on the basis of the content of <0.02 mm particles, the sum of exchangeable base cations, soil acidity and the ratio between total N content and organic C in the humus−mineral horizon. The soil trophic index for mountain areas (SIGg) that include the climatic factor was introduced. The factor is defined as the 650/altitude ratio for a given point above sea level. In the mountains, the content of <0.02 mm fraction, the sum of exchangeable base cations and soil acidity were determined in the column of 1 m² of the soil cross section and depth of 1 m (1 m³ of volume) due to the lower depth of the soil profile. The SIGg correctly separates soil of different productivity as the properties closely associated with the stable elements of the soil, expressing its production and properties, which reflect the current state of the soil environment, were used in the construction SIGg.
Źródło:
Sylwan; 2015, 159, 08; 684-692
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
Wyświetlanie 1-15 z 52

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