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Tytuł:
Występowanie jeżyn (Rubus L.) w młodych uprawach leśnych na Płaskowyżu Kolbuszowskim
The occurrence of brambles (Rubus L.) in young forest plantations on the Kolbuszowa Plateau
Autorzy:
Wolanin, M.M.
Wolanin, M.N.
Oklejewicz, K.
Powiązania:
https://bibliotekanauki.pl/articles/1292603.pdf
Data publikacji:
2017
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
Plaskowyz Kolbuszowski
uprawy lesne
krzewy
jezyna
Rubus
jezyna gruczolowata
Rubus hirtus
jezyna sloneczna
Rubus apricus
jezyna Bellardiego
Rubus pedemontanus
jezyna faldowana
Rubus plicatus
jezyna ostrega
Rubus gracilis
jezyna wyniosla
Rubus ambrosius
jezyna gliwicka
Rubus glivicensis
jezyna bukietowa
Rubus grabowskii
malina
Rubus idaeus
jezyna wzniesiona
Rubus nessensis
jezyna orzesiona
Rubus camptostachys
wystepowanie
genus Rubus
forests
south-eastern Poland
Opis:
In the Kolbuszowa Plateau forest areas, aggregations of brambles were observed most often in young forest plantations and forest clear cuts. In the 20 plantations that we examined, 11 bramble species were found. The most common bramble species in young forest plantations were Rubus plicatus, R. nessensis, R. hirtus, R. idaeus and more rarely R. gracilis, R. ambrosius and R. apricus. The largest bramble aggregations occurred in plantations located in mixed pine-oak forests, subcontinental lime-oakhornbeam forests and drained black alder forests. In young forest plantations the Rubus species were accompanied by species characteristic for the Vaccinio-Piceetea, Querco-Fagetea, Epilobietea angustifolii, Molinio-Arrhenatheretea and Nardo-Callunetea associations. There are three groups of bramble species which occur in young forest plantations: I – species with thin, prostrate and rooting stems (R. hirtus, R. apricus, R. pedemontanus), the negative impact of which on tree seedlings could have been very significant if the bramble specimens or diaspores had been present at the moment of tree planting; II – species with strong, poorly branched and arched stems (R. plicatus, R. gracilis, R. ambrosius, R. glivicensis), which negative influence on tree seedlings depends on the capability of the species to produce a big, dense bush in a short period of time thereby increasing shade; III – species with erect and relatively sparsely growing stems (R. idaeus), which are not a threat for the young forest plantations. Species with intermediate features (e.g. R. nessensis) may have a negative impact on young plantations generating a large, dense aggregation, however in most cases their populations only grow sparsely and do not hinder the growth of tree seedlings.
Źródło:
Leśne Prace Badawcze; 2017, 78, 2
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fosforyny jako czynnik ograniczający zamieranie drobnych korzeni w drzewostanach dębowych Płyty Krotoszyńskiej
Phosphites as factor limiting the fine root damage in oak stands from Krotoszyn Plateau
Autorzy:
Oszako, T.
Nowaszewski, M.M.
Szulc, W.
Rutkowska, B.
Nowakowska, J.A.
Powiązania:
https://bibliotekanauki.pl/articles/985975.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewa lesne
dab
Quercus
choroby roslin
fytoftoroza korzeni
zamieranie debow
czynniki ograniczajace choroby roslin
fosforyny
RDLP Poznan
Plyta Krotoszynska
drzewostany debowe
opryski lotnicze
oak decline
quercus robur l.
phytophthora
phosphites
rdlp poznań
Opis:
Oak decline phenomenon has been observed in Poland in the 1980s. Especially, Krotoszyn Forest District was affected in the years 1982−1984, when oaks were dying in a mass extend causing economic and ecological problems. Twenty five years later many Phytophthora species were isolated from rhizosphere soil suggesting their important role in fine root damage. This research was focused on application of fertilisers increasing oak resistance to soil−borne pathogens. In total, 60 soil samples were collected c.a. 1 meter from trunks of oaks representing control and treated variant with Actifos® and Kalex® fertilisers. The fine root parameters (smaller than 2 mm) were evaluated with the water scanner and WinRhizo software. The same soil samples were analysed for the presence of macro− (N, P, K, Ca, Mg) and microelements (Al, Cu, Fe, Mn, Na, Zn). The use of ammonium and potassium phosphites in the form of foliar spray had a beneficial effect on the health of oak stands (Quercus robur L.) in the Krotoszyn Forest District. Three parameters: defoliation (ICP Forest), vitality according to Roloff method and synthetic index of damage were applied in order to evaluate the status of oaks health. Two aforementioned crown parameters were obtained from visual assessment from the ground, while the synthetic index of damage was calculated according to the formula developed by Dmyterko and Bruchwald. The parameters of fine roots after treatments, especially their number, length and surface improved. Trees with better quality fine roots had more chance to survive in unfavourable environmental conditions like drought. Phosphite treatments of oak stand positively influenced the chemical properties of soil, decreased acidity, but increased availability of Zn for plants, and probably reduced root damage by toxic aluminium ions. An improvement in the health of fine roots (that were saved by phosphites from damage caused by pathogenic species of Phytophthora genus present in the soil) will have a positive effect on the reconstruction of crown architecture (shoots development from dormant buds).
Źródło:
Sylwan; 2018, 162, 10; 819-827
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Interakcje między grzybami (Mycota) a mszakami (Bryophyta) w zbiorowiskach leśnych
Interactions between fungi (Mycota) and bryophytes (Bryophyta) in forest communities
Autorzy:
Grzesiak, B.
Lawrynowicz, M.
Stebel, A.
Powiązania:
https://bibliotekanauki.pl/articles/989948.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
siedliska lesne
torfowiska
mszaki
Bryophyta
interakcje grzyby-rosliny
grzyby briofilne
pasozytnictwo
mikoryza
saprotrofizm
komensalizm
bryophilous fungi
parasitism
saprotrophism
commensalism
symbiosis
forest
peat−bogs
poland
Opis:
Fungi growing on bryophytes or in their close vicinity are called bryophilous. They can create facultative or obligate associations. The paper presents fungi occurring in various relations with bryophytes, such as parasites, saprotrophs and endophytes. In Poland, majority of information about bryophilous fungi origin from papers concerned with the occurrence of these organisms within plant communities. The authors enumerate mainly facultative bryophilous macromycetes such as: Russula emetica (Schaeff.) Pers.: Fr., Lactarius thejogalus (Bull.: Fr.) Gray ss. Neuhoff, Cortinarius semisanguineus (Fr.) Gillet, and Leccinum niveum (Fr.) Rauschert. Data related to micromycetes occurring on bryophytes in Poland are scanty, and only few species were reported, e.g. Hymenoscyphus subcarneus (Schumach.) J. Schröt. and Epibryon plagiochilae). Preliminary list of obligate bryophilous fungi of Poland is provided and includes 9 Ascomycota (e.g.: Bryonectria phyllogena Döbbeler, Geoglossum sphagnophilum Ehrenb., Hymenoscyphus subcarneus (Schumach.) J. Schröt. and Sarcoleotia turficola (Boud.) Dennis) and Basidiomycota (e.g.: Armillaria ectypa (Fr.) Lamoure, Galerina calyptrata P. D. Orton, Gerronema marchantiae Singer & Clémençon, G. postii (Fr.) Singer, Hygrocybe coccineocrenata (P. D. Orton) M. M. Moser, Lyophyllum palustre (Peck) Singer, Omphalina sphagnicola (Berk.) M. M. Moser, O. umbellifera (L.) Quel., Psilocybe polytrichi (Fr.) Sacc., Rimbachia bryophila (Pers.) Redhead and Suillus flavidus (Fr.) J. Presl.). Nowadays, interactions between fungi and bryophytes become the subject of the increasing interest of mycologist and bryologists.
Źródło:
Sylwan; 2015, 159, 11; 912-920
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Czasowa i przestrzenna aktywność nornicy rudej Myodes (Clethrionomys) glareolus i myszy leśnej Apodemus flavicollis w siedlisku grądowym Puszczy Białowieskiej
Temporal and spatial activity of bank vole Myodes (Clethrionomys) glareolus and yellow-necked mouse Apodemus flavicollis in an oak-hornbeam habitat of the Bialowieza Forest
Autorzy:
Kołakowski, M.
Jancewicz, E.
Kielan, E.
Powiązania:
https://bibliotekanauki.pl/articles/985864.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Puszcza Bialowieska
siedliska gradowe
runo lesne
drobne ssaki
nornica ruda
Clethrionomys glareolus
mysz lesna
Apodemus flavicollis
aktywnosc dobowa
aktywnosc przestrzenna
activity patterns
microhabitat factors
rodents
small mammals
Opis:
The aim of the study was to investigate the pattern of daily activity and connections between daily and spatial activity in relation to the forest undergrowth phytocenosis of the two most common rodent species – bank vole Myodes (Clethrionomys) glareolus (Cricetidae) and yellow−necked mouse Apodemus flavicollis (Muridae). The research was carried out in July 2017 in the oak−hornbeam habitat in the Browsk Forest District in the northern part of the Białowieża Forest. For rodents catching and vegetation evaluation the 1 ha study plot was divided into 100 squares of 10×10 m. Catches were made according to the catch−mark−release method. Wooden live traps (with bait and food for caught animals in the form of the grains of cereals, juicy fruits and aromatic fat) were set in the center of each square. The traps were controlled during 4 days at 3−hour intervals (0 a.m., 3 a.m., 6 a.m., 9 a.m., 12 p.m., 3 p.m., 6 p.m. and 9 p.m.). Traps occupied by rodents were marked with colored adhesive cards according to the established code. Twice a day – at 6 a.m. and 6 p.m. caught rodents were identified to the species and released next to the traps. The catch time was recorded. In total, 151 catches were registered. The daily activity of rodents was determined based on the total catches into assumed time intervals and at different times of the day (day, night, dawn/twilight). We provided a detailed description of undergrowth features of the area where rodents were caught. In each square we assessed the dominant species (on this basis the plants communities were established), the average height of vegetation and the degree of soil coverage with plants (undergrowth density). Collected data were used to the interpretation of the spatial activity of rodents in relation to the different undergrowth characteristics. The bank vole was distinguished by an even, day−and−night activity rhythm, while the yellow−necked mouse by monophasic – remarkably nocturnal activity. The dependence of the phytocenosis characteristics and spatial distribution of rodents was revealed for the daily activity of bank vole and twilight−dawn activity of both species. At dawn and dusk voles and mice were active in places with high vegetation. The density of undergrowth was the most important feature for bank voles during the day.
Źródło:
Sylwan; 2018, 162, 12; 1029-1037
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ wybranych elementów charakterystyki drzewostanów na intensywność występowania kornika drukarza Ips typographus (L.) w Beskidzie Żywieckim
Impact of selected stand characteristics on the occurrence of the bark beetle Ips typographus (L.) in the Beskid Zywiecki Mountains
Autorzy:
Grodzki, W.
Starzyk, J.R.
Kosibowicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/1317562.pdf
Data publikacji:
2014
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
Beskid Zywiecki
siedliska lesne
drzewostany
miazszosc drzew
wydzielanie sie posuszu
szkodniki roslin
kornik drukarz
Ips typographus
wystepowanie
insect outbreak
site
stand characteristics
spatial analysis
Picea abies
Opis:
Recently, Norway spruce stands in Beskid ¯ywiecki (Western Carpathians) have been plagued by bark beetle outbreak affecting an extensive area over a large range of altitudes. Georeferenced data (2356 records) from 2009–2011 of the volume of felled spruces showing insect infestation in forest sub-compartments were analysed with respect to selected site and stand characteristics. The infestation intensity varied between individual parts of the examined area. Spruce mortality, recorded evenly across all slope expositions, was higher in the zones 800 m – 1000 m and above 1000 m than in the zone below 800 m. The infestation intensity increased slightly with spruce representation in the stands and was higher in stands older than 80 years. There was no clear correlation between spruce mortality and site quality. However, in areas with more diverse and fertile sites mortality was lower. In overall, the results obtained in this study are in line with previous knowledge on the subject, but patterns describing bark beetle preferences in infested areas appear to be less pronounced than those found in earlier publications. Risk assessment and current planning of forest protection measures in stands affected by bark beetle outbreaks should be based on the here described characteristics of spruce susceptibility to insect infection.
Źródło:
Leśne Prace Badawcze; 2014, 75, 2; 159-169
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Porównanie dokładności zdalnych metod szacowania wysokości drzew
Comparison of the accuracy of remote methods of tree−height estimation
Autorzy:
Mielcarek, M.
Bałazy, R.
Zawieja-Niedźwiecki, T.
Powiązania:
https://bibliotekanauki.pl/articles/989919.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewa lesne
wysokosc drzew
szacowanie
lotniczy skaning laserowy
stereofotogrametria
lidar
dokladnosc
airborne laser scanning
stereo−photogrammetry
tree height
forestry
Opis:
The presented study deals with new capabilities of tree height estimation based on the remote sensing techniques. The main goal of this study is to find out the accuracy of tree height estimation based on LiDAR data and stereo−photogrammetric measurements. The area of investigation is located in the Western Sudetes Mountains (southern Poland). There were 75 trees chosen (Picea sp.) and measured using three different methods: traditional field measurements, stereo – photogrammetric observations and Airborne Laser Scanning (ALS). Tree heights estimated using LiDAR data and stereo−photogrammetric measurements were compared to heights acquired in the field. The mean tree height difference between LiDAR and field measurements was 0.60 m (RMSE=1.47 m), whereas the mean tree height difference between stereo−photogrammetric measurements and field equaled to –0.55 m (RMSE=1.04 m). The obtained results allow the conclusion to be drawn that Airborne Laser Scanning and stereo−photogrammetric observations are competitive with traditional methods of forest parameters measurements owing to the automation and accuracy of surveys. This study has confirmed that remote sensing techniques are effective and reliable methods of obtaining data for forest inventory.
Źródło:
Sylwan; 2015, 159, 09; 714-721
0039-7660
Pojawia się w:
Sylwan
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:
Wpływ pokarmu na imagines chrabąszczy Melolontha melolontha i M. hippocastani
Effects of food source quality on the adults of Melolontha melolontha and M. hippocastani
Autorzy:
Woreta, D.
Lipiński, S.
Wolski, R.
Powiązania:
https://bibliotekanauki.pl/articles/1295010.pdf
Data publikacji:
2016
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
entomologia lesna
szkodniki roslin
chrabaszcz majowy
Melolontha melolontha
chrabaszcz kasztanowiec
Melolontha hippocastani
owady dorosle
przyrost masy ciala
przezywalnosc
dlugosc zycia
plodnosc
pokarm
preferencje pokarmowe
forest cockchafer
common cockchafer
forest pests
relative growth rate
mortality
food quality
Opis:
This paper presents the results of studies on the life span, survival, weight and fecundity of the forest cockchafer (Melolontha hippocastani, Fabricius, 1801) and the common cockchafer (Melolontha melolontha, Linnaeus, 1758) beetle feeding on Alnus glutinosa (L.) Gaertn., Betula pendula Roth., Carpinus betulus L., Fagus sylvatica L., Larix decidua Mill., Prunus serotina (Ehr.) Borkh., Quercus petraea (Matt.) Liebl., Quercus robur L., Robinia pseudoacacia L., Sambucus nigra L. and Sorbus aucuparia L. em. Hedl. The lifespan and weight of beetles as well as female fertility were examined in 2011 and 2013. Specimen for laboratory tests were collected in the field shortly after leaving their overwintering sites in the soil and identical experimental protocols were applied to both examined species. 576 and 432 beetles were tested in 2011 and 2013, respectively. In 2011, beetles were feeding on A. glutinosa, B. pendula, F. sylvatica, L. decidua Q. petraea leaves and on C. betulus, P. serotina, R. pseudoacacia, S. aucuparia and S. nigra in 2013. Both years, beetles feeding on Q. robur leaves were examined as a control. Our results showed that feeding on leaves of Q. robur and Q. petraea had the largest positive impact on the life time, weight and fecundity of the studied beetles. Leaves of F. sylvatica and L. decidua also constituted an adequate food source for the development of M. melolontha. M. hippocastani, however, did not perform as well when feeding on these two tree species. Females of M. melolontha reared on leaves of B. pendula did not lay eggs. The following plant species had a negative impact on the survival and development of the collected specimen and female fertility: A. glutinosa, S. nigra, P. serotina and R. pseudoacacia. Neither beetle species fed on the leaves of A. glutinosa or S. nigra.
Źródło:
Leśne Prace Badawcze; 2016, 77, 1
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
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:
Wpływ żywicowania na przyrost radialny sosny zwyczajnej (Pinus sylvestris L.) na przykładzie drzewostanu w Nadleśnictwie Lidzbark
Effect of resin-tapping on the radial increment of Scots pine (Pinus sylvestris L.) - case study of a stand from Lidzbark Forest District
Autorzy:
Magnuszewski, M.
Tomusiak, R.
Powiązania:
https://bibliotekanauki.pl/articles/1318415.pdf
Data publikacji:
2013
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
drzewa lesne
dendrochronologia
sosna zwyczajna
Pinus sylvestris
przyrost drzew
przyrosty radialne
zywicowanie
Nadlesnictwo Lidzbark
Scots pine
tree rings
resin-tapping
dendrochronology
Opis:
The study makes an attempt to evaluate the effect of resin-tapping on the radial increment of Scots pine (Pinus sylvestris L.). Increment cores were taken from two groups of trees: resin-tapped trees and normal trees growing in a 148–year-old pine stand in the Lidzbark Forest District. The cores were taken with the Pressler increment borer from two heights on the tree trunk: 1.30 m and 3.30 m. Using dendrochronological methods, real chronologies were built for each of the four analysed groups of cores. The value and variability of increments for each group were investigated in 20 and 40 year time periods, before and after the start of resin-tapping. In next step, the chronologies were compared and their coefficients of conformity were calculated. As a result, we can state that the radial increments were larger are at 1.3 m height after resin-tapping than before resin-tapping. There was also significant effect of resintapping on radial growth at the height 3.3 m, above the resin-tapping face.
Źródło:
Leśne Prace Badawcze; 2013, 74, 3; 273-280
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza wybranych cech przestrzeni wzrostu pojedynczego drzewa na przykładzie 135-letniego drzewostanu dębowego
Analysis of selected features of the growth space of a single tree on the example of a 135 years old oak stand
Autorzy:
Kaźmierczak, K.
Stosik, M.
Powiązania:
https://bibliotekanauki.pl/articles/1013435.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
dendrometria
przestrzen wzrostu
klasy Krafta
lesnictwo
Quercus
szerokosc korony
procent wykorzystania jednostkowego pola
drzewostany debowe
przestrzen pojedynczego drzewa
powierzchnia rzutu korony
wysokosc drzew
dab
piersnice drzew
drzewa lesne
growth space
crown projection area
oak
Opis:
The paper presents the results of an analysis of the features of the growth space of a single tree in a 135 years old oak stand. The following measures of the growth space of a tree were selected and determined: crown projection area – pk [m2], crown diameter – dk [m], Seebach's growth space number (also called the crown deflection degree) – dk/d1,3, crown projection area to basal area ratio – d 2 k /d 2 1,3, space use degree – r/s, space of a single tree – ppd=pk·h [m3], crown spread (crown deflection coefficient) – dk /h and percentage use of a unit area – pwjp=100·pk /pj [%]. Also the biosocial position of each tree was determined.
Źródło:
Sylwan; 2008, 152, 02; 3-9
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena długodystansowego rozsiewu rokitnika zwyczajnego (Hippophae rhamnoides L.) na zwałowisku wewnętrznym Kopalni Węgla Brunatnego Bełchatów
Assessment of sea buckthorn (Hippophae rhamnoides L.) long distance dispersal on the internal waste heap of the Belchatow lignite mine
Autorzy:
Bolibok, L.
Kubiak, M.
Michalski, S.
Powiązania:
https://bibliotekanauki.pl/articles/1292163.pdf
Data publikacji:
2018
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
hodowla lasu
rokitnik zwyczajny
Hippophae rhamnoides
rozsiew dlugodystansowy
rekultywacja terenow
zwalowiska wewnetrzne
Kopalnia Wegla Brunatnego Belchatow
long distance dispersal
sea-buckthorn
soil conditions
slope aspect
Opis:
Long distance dispersal is a key process occurring in plant communities and is particularly important for pioneer species like sea-buckthorn (Hippophaë rhamnoides L.) which survival strongly depends on colonizing newly created post-disturbance habitats. Sea-buckthorn, a cluster-forming shrub, is commonly used in Poland in the reclamation of soil-less areas devastated the by mining industry and for these areas a generative expansion of planted populations is usually observed. The main objective of this study was to assess the long-distance dispersal of this species in areas previously disturbed by industrial activity. Our observations were made on a 223.75 ha large section of the internal waste heap of the Bełchatów lignite mine, Central Poland. The area was colonized by sea-buckthorn specimens originating from a population planted on the nearby external waste heap. During the search for newly established sea-buckthorn clusters, their position and size were recorded and the preferences for specific site conditions were assessed using the Ivlev's electivity index. New specimen were observed at distances between 600 m and 3600 m from their potential seed source. The mean cluster density was 1.37 ha-1. The observed pattern of long distance dispersal is linked with to behavior of frugivorous birds. The largest cluster densities were observed along ditches (9.83 ha-1) and on open areas with less developed plant cover, while the lowest cluster density occurred in afforested areas (0.51 ha-1). Poor sandy substrate reduced the probability of plant establishment compared to richer loamy sands. There appeared to be no influence of slope aspect on the probability of sea-buckthorn establishment.
Źródło:
Leśne Prace Badawcze; 2018, 79, 1
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Różnorodność glebowego banku nasion i runa wtórnego lasu dębowego w Kozubowskim Parku Krajobrazowym
Soil seed bank and herb layer diversity within secondary oak forest in the Kozubowski Landscape Park
Autorzy:
Halatkiewicz, T.
Jankowska-Błaszczuk, M.
Swiercz, A.
Adamczyk, K.
Powiązania:
https://bibliotekanauki.pl/articles/985706.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewostany debowe
wtorny drzewostan debowy
runo lesne
banki nasion
glebowy bank nasion
Kozubowski Park Krajobrazowy
secondary oak forest
soil seed bank
herb layer structure
nida basin
Opis:
The research concerned the evaluation of the soil seed bank and herb layer diversity in the 60−year old secondary oak forest growing in the Kozubowski Landscape Park (Nida Basin, southern Poland). The aim of the studies was to determine the diversity, similarity and species structure of herb layer and soil seed bank within plots situated at different distances from the forest edge as well as to discuss the obtained data with the results of analogous research which were conducted in the natural oak forest in Białowieża (north−eastern Poland). 12 plots 20×20 m were situated in three zones from edge to the centre of the forest (P, S and L; fig. 1). A total of 134 species of vascular plants were recorded in the analysed herb layer (4800 m2). It was found that in the plots closest to the forest edge, both the Shannon’s diversity index and the average density of the herb layer species were significantly higher than on these located deeper in forest (fig. 2, 3). The soil seed bank contained a total of 2820 seeds belonging to 45 species. The density of the seed bank ranged from 1406/m2 (P) to 1061/m2 and 1057/m2 (S and L, respectively). The seed bank species richness showed a constant decrease from zone P to L (fig. 4). The Sörensen species similarity coefficient between the herb layer and the seed bank for the entire forest was 0.43. Although nearly 90% of the seeds of the whole bank belonged to the species present in the herb layer, the species structure of the above ground vegetation was clearly different from that recorded in the bank. It was found that over 66% of all seeds in the bank belonged to Poa nemoralis. A comparative analysis of the studied oak forest and natural oak forest of Białowieża showed: a similar number of forest species in herb layer per 100 m2, similarly high proportion of ancient forest species in the herb layer, much lower species richness of the seed bank as well as its density in the secondary forest. Our results also point to several times lower values of H’ Shannon−Wiener’s biodiversity index, both in the herb layer and the seed bank in comparison to the undisturbed Białowieża oak forest.
Źródło:
Sylwan; 2019, 163, 05; 415-424
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 819

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