Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "alder" wg kryterium: Temat

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 58
Tytuł:
First record of alder Phytophthora in Poland
Autorzy:
Orlikowski, L.B.
Oszako, T.
Szkuta, G.
Powiązania:
https://bibliotekanauki.pl/articles/65129.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
common alder
pathogenicity
Polska
isolation
Alnus glutinosa
fungi
Phytophthora
distribution
alder
Źródło:
Journal of Plant Protection Research; 2003, 43, 1
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Structural diversity and production of alder stands on former agricultural land at high altitudes
Autorzy:
Vacek, Z.
Vacek, S.
Podrazsky, V.
Kral, J.
Bulusek, D.
Putalova, T.
Balas, M.
Kalouskova, I.
Schwarz, O.
Powiązania:
https://bibliotekanauki.pl/articles/41581.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
structural diversity
stand structure
alder stand
agricultural land
black alder
Alnus glutinosa
grey alder
Alnus incana
afforestation
succession
Sudetes Mountains
Opis:
The paper deals with the structural diversity and production of a less frequently studied type of alder stands originated on former agricultural lands in the 1950s, established partly by plantation and partly by natural succession in the area of the Krkonoše Mts. and the Orlické hory Mts. (Czech Republic). Four permanent research plots (PRP) were established at sites where Black alder (Alnus glutinosa L. Gaertn.) and Grey alder (Alnus incana L. Moench.) naturally occurs, each plot of 0.25 ha in size. The aim of the study was to evaluate the structure and development of the alder stands with respect to biodiversity, horizontal, vertical and species structure, diameter increment with emphasis on climate factors, and the quantity and quality of timber production. The results document low diversification of the studied stands in the PRPs. The horizontal structure is defined as random and clumped at sites at the highest altitude with high water table. The number of living trees with DBH ≥ 4 cm ranges between 556 to 828 trees ha-1 with the relative stand density index (SDI) 0.67–0.77. The stand volume ranges from 247 to 393 m3 ha–1, and decreases with higher altitudes. Low temperatures is limiting factor for radial growth in the high mountain areas, respectively low precipitation in the middle lands. Owing to a rather specific site character, as especially the spring area, the stands exhibit only average production, but the production quality is generally high. The quality timber is suitable for industrial use; the rot-affected trunk base parts usable for fuel represent only approximately 16%.
Źródło:
Dendrobiology; 2016, 75
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic variation within and among naturally regenerating populations of alder [Alnus glutinosa]
Autorzy:
Mejnartowicz, L
Powiązania:
https://bibliotekanauki.pl/articles/56806.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
rare allele
genetic distance
isoenzyme
Alnus incana
genetic diversity
European black alder
gene flow
beside grey alder
naturally regenerating population
heterozygosity
botany
alder
genetic variation
Alnus glutinosa
Opis:
To assess the inter- and intrapopulation genetic variation in the filial generation (F1) of alder (Alnus glutinosa (L.) Gaertn.), 11 naturally regenerated populations were analysed. Their parental populations (P), represent the whole Polish territory and belong to three phytosociological associations with alder: typical alder swamp forest Carici elongatae-Alnetum (Ce-A); alder riparian forest Circaeo-Alnetum (C-A); and ash-elm riparian forest Fraxino-Ulmetum (F-U). F1 populations are grown in a common-garden experiment (provenance trial). Genotyping of individual trees has been carried out by analysis in a bud tissue allele frequency in the 21 isozyme putative loci of 10 enzymes. Differences between populations in respect to the level of genetic diversity were not high. Genetic diversity measured as the number of effective alleles per locus was the highest (Ne = 1.65) in population Wińsko originating from F-U (where also the inbreeding coefficient was the highest, F = 0.429), and the lowest (Ne = 1.48) in population Sławki from Ce-A. In all investigated populations, observed heterozygosity (Ho = 20%) was lower than expected from H-W equilibrium (He = 29%). The highest genetic variation expressed as percentage of polymorphic loci (77.3%) was observed in the offspring populations from Ce-A, and the smallest (69.9%) in the populations originating from F-U. It seems that the low genetic differentiation between populations is probably connected with long-distance seed dispersal via river systems. Alder seed can be transported over long distances thanks to periodical flooding. There is some gene flow between alder populations, with about 2.5 immigrants successfully entering a population per generation (Nm = 2.55). The level of population subdivision within A. glutinosa was low (Fst = 0.089). There was no significant genetic differentiation between populations from different phytosociological associations. Mantel test exhibited no significant correlation (r = 0.077) between genetic and geographic distance. In the dendrogram constructed according to Nei (1972) on the basis of interpopulation genetic distances, many small groups can be observed.
Źródło:
Acta Societatis Botanicorum Poloniae; 2008, 77, 2
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Halotolerant fungi stimulate growth and mitigate salt stress in Alnus glutinosa Gaertn.
Autorzy:
Thiem, D.
Tyburski, J.
Golebiewski, M.
Hrynkiewicz, K.
Powiązania:
https://bibliotekanauki.pl/articles/2077648.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
black alder
ectomycorrhiza
saprophytic fungi
inoculation
proline
Opis:
Soil salinity is an important abiotic stress factor that reduces both plant growth and development and decreases diversity and metabolic potential of microorganisms, particularly fungi. However, some fun- gal isolates, including mycorrhizal fungi, can increase tolerance of plants to salinity, e.g. by activation of de- fense mechanisms. Main aim of our study was: (i) to identify and characterize fungal strains isolated from fruitbodies growing at saline test sites and (ii) to determine the effect of fungal inoculation on the growth and salinity tolerance of Alnus glutinosa Gaertn. seedlings. Two ectomycorrhizal strains (Amanita muscaria OW-10 and Paxillus involutus OW-5) and a saprotrophic one (Gymnopus sp. OW-6) were isolated from fruit- bodies collected at naturally saline test sites. The plant growth promotion was observed after inoculation of plants with the ectomycorrhizal fungus – P. involutus OW-5, while the use of Gymnopus sp. OW-6, displaying the highest hydrolytic activity, decreased seedling growth parameters. Moreover, P. involutus OW-5 (char- acterized by characterized by medium salt tolerance salt tolerance) promoted growth of black alder in the presence of salt, while A. muscaria OW-10 (with the highest salt tolerance) increased fresh and dry mass of seedlings only in the absence of salt. Black alder seedlings inoculated with P. involutus OW-5 revealed higher synthesis of proline in aboveground organs compared to the control plants which suggested that accumulation of this compound can be a mechanism protecting black alder seedlings against salt stress. In conclusion, we recommend the use of P. involutus OW-5, which displayed the best plant growth promoting ability and salt tolerance, for inoculation of black alder trees used in reclamation of saline habitats
Źródło:
Dendrobiology; 2020, 83; 30-42
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zamieranie olszy czarnej Alnus glutinosa (L.) Gaertn. wzdłuż rzeki Narewki na terenie Nadleśnictwa Białowieża
Decline of Black Alder Alnus glutinosa (L.) Gaertn. along the Narewka River in the Białowieża Forest District
Autorzy:
Malewski, T.
Topor, R.
Nowakowska, J.A.
Oszako, T.
Powiązania:
https://bibliotekanauki.pl/articles/2142614.pdf
Data publikacji:
2020
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
alder
dieback
drought
Phytophthora
pcr
olsza
zamieranie
susza
Opis:
Black Alder Alnus glutinosa (L.) Gaertn. is an important tree commonly growing in Poland. Alders are actinorhizal plants that play an important ecological role in riparian ecosystems through atmospheric nitrogen fixation, filtration and purification of waterlogged soils as well as providing a refuge for terrestrial and aquatic organisms thus helping to stabilize stream banks. Black Alder used to be considered a very pest and disease resistant species but, the situation changed in 2000, when an unprecedented decline of Alders was observed in Poland. In the Białowieża Forest District, this decline has been observed on wet meadow habitats and along rivers or watercourses. Currently, there are several hypotheses explaining Alder dieback, among them climatic changes and Phytophthora infections. In terms of climate, Black Alder requires a high atmospheric humidity during all phases of its reproductive cycle. It tolerates neither long-term summer flooding nor a significant decrease in the groundwater level. In terms of pests, oomycete pathogens of the genus Phytophthora are the most destructive plant pathogens known and many of them are present in forests and nurseries all over Europe. The aim of this study was to evaluate the health of Black Alder along the Narewka River in the Białowieża Forest District. Selected areas were monitored in 2012 and 2018, but no relationship between drought and alder health was found. A preliminary analysis of soil and water samples by real time PCR revealed the presence of two Phytophthora species: P. alni and P. cactorum. Further and more detailed research is required to elucidate the role of these pathogens in Alder dieback.
Źródło:
Leśne Prace Badawcze; 2020, 81, 4; 147-152
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rola martwego drewna w regeneracji drzewostanu łęgu jesionowo-olszowego (Fraxino-Alnetum) zasiedlonego przez bobry
Role of the deadwood in regeneration of the ash-alder forest stand (Fraxino-Alnetum) colonized by beavers
Autorzy:
Gawryś, R.
Gabrysiak, K.
Powiązania:
https://bibliotekanauki.pl/articles/979182.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
natural regeneration
black alder
beaver pond
Białowieża Forest
Opis:
The paper concerns the structure of natural regeneration in ash−alder riparian forests (Fraxino−Alnetum) colonized by beavers (Castor fiber) taking into account the substrate, on which it appears (soil and deadwood). Study was conducted in 2016 on twelve sampling plots located in the Orłówka valley in the Białowieża National Park (eastern Poland), where beavers settled around 2005. We counted natural regeneration occurring on the ground and on deadwood on each plot. Also we identified volume of deadwood, decay status and water cover. A decade after the occurrence of beaver ponds, the density of natural regeneration is 5575 saplings per hectare and the regeneration on deadwood is 28% of the total. Black alder is the dominant species. The regeneration occurring on the soil is richer in species and has a larger share of shrub species. In the case of regeneration on the deadwood, seedlings appear first on trees fallen before the flood. Over the time, the role of deadwood as a substrate for the development of regeneration increases and the role of fallen trees is the greater, the greater is the fraction (coverage) of the flooded areas. Studies show that the continuous occurrence of the deadwood accelerates habitat regeneration after a disturbance such as the occurrence of a beaver pond.
Źródło:
Sylwan; 2020, 164, 06; 505-512
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of the degree of isolation of alder tussocks on the activity and diversity of epigeic invertebrates
Wpływ stopnia izolacji kęp olsowych na aktywność i różnorodność epigeicznych bezkręgowców
Autorzy:
Olejniczak, Izabella
Boniecki, Paweł
Uchmański, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/1062587.pdf
Data publikacji:
2020-12-31
Wydawca:
Uniwersytet Kardynała Stefana Wyszyńskiego w Warszawie
Tematy:
ols
epigeiczne bezkręgowce
izolacja
alder wood
epigeic invertebrates
isolation
Opis:
Activity and diversity of epigeic invertebrates were studied in 2004 in alder wood (Alnus glutinosa-Carex elata association). The following chosen: fragment of alder wood and 23 alder tussocks with average surface of 0.27 m2. Also, 16 artificial tussocks were installed: 4 of them were the same size as natural ones, and other 12 were smaller, 0.1 m2 in size. The average height of tussock was 0.4 m. Distance between individual tussocks varied from 1 to 2 m. Tussocks were placed 3, 5, 7, 9 and 11 m from the fragment of the alder wood. The material was collected using pitfall traps. Samples were taken every 7 or 14 days twice in the season: when tussocks were or were not isolated by water. The distance from the alder wood did not influence on activity and diversity of epigeic invertebrates on tussocks. Saprophagous: Isopoda and Collembola and predators: Araneae and Carabidae were the most abundant in the samples.
W 2004 roku badano aktywność i różnorodność epigeicznych bezkręgowców w lesie olsowym (zbiorowisko Alnus glutinosa-Carex elata). Wybrano: fragment olsu oraz 23 kępy olsowe, o średniej powierzchni 0,27 m2. Zainstalowano także 16 sztucznych kęp: 4 z nich były tej samej wielkości co naturalne oraz 12 mniejszych, o powierzchni 0,1 m2. Przeciętna wysokość kęp wynosiła 0,4 m. Odległości między poszczególnymi kępami wahały się od 1 do 2 m. Kępy były położone 3, 5, 7, 9 i 11 m od fragmentu olsu. Materiał zbierano stosując pułapki glebowe. Próbki pobierano co 7 lub 14 dni, dwukrotnie w sezonie: gdy kępy były izolowane lub nie były izolowane przez wodę. Odległość od olsu nie wpływała na aktywność i różnorodność epigeicznych bezkręgowców na kępach. W próbkach najliczniej występowały saprofagi: Isopoda i Collembola oraz drapieżniki: Araneae i Carabidae.
Źródło:
Studia Ecologiae et Bioethicae; 2020, 18, 5; 317-323
1733-1218
Pojawia się w:
Studia Ecologiae et Bioethicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ stopnia izolacji kęp olsowych na aktywność i różnorodność epigeicznych bezkręgowców
The impact of isolation degree of the alder tussocks on activity and diversity of the epigeic invertebrates
Autorzy:
Olejniczka, Izabella
Boniecki, Paweł
Uchmański, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/1964509.pdf
Data publikacji:
2011-09-30
Wydawca:
Uniwersytet Kardynała Stefana Wyszyńskiego w Warszawie
Tematy:
ols
epigeniczne bezkręgowce
izolacja
alder wood
epigeic invertebrates
isolation
Opis:
W 2004 roku badano aktywność i różnorodność epigeicznych bezkręgowców w lesie olsowym (zbiorowisko Alnus glutinosa-Carex elata). Wybrano: fragment olsu oraz 23 kępy olsowe, o średniej powierzchni 0,27 m2. Zainstalowano także 16 sztucznych kęp: 4 z nich były tej samej wielkości co naturalne oraz 12 mniejszych, o powierzchni 0,1 m2. Przeciętna wysokość kęp wynosiła 0,4 m. Odległości między poszczególnymi kępami wahały się od 1 do 2 m. Kępy były położone 3, 5, 7, 9 i 11 m od fragmentu olsu. Materiał zbierano stosując pułapki glebowe. Próbki pobierano co 7 lub 14 dni, dwukrotnie w sezonie: gdy kępy były izolowane lub nie były izolowane przez wodę. Odległość od olsu nie wpływała na aktywność i różnorodność epigeicznych bezkręgowców na kępach. W próbkach najliczniej występowały saprofagi: Isopoda i Collembola oraz drapieżniki: Araneae i Carabidae.
Activity and diversity of epigeic invertebrates were studied in 2004, in alder wood (Alnus glutinosa-Carex elata association). There were chosen: fragment of alder wood and 23 alder tussocks that average surface was 0.27m2. There were installed also 16 artificial tussocks: 4 of them were the same size as natural, and the other 12 were smaller, 0,1m2 in size. The average hight of tussockw was 0.4m. Distance between particular tussocks varied from 1 to 2m. Tussocks were placed 3, 5, 7, 9, and 11m from the fragment of the alder wood. The material was collected using pitfall traps. Samples were taken every 7 or 14 days twice in the season: when tussocks were or were not isolated by water. The distance from the alder wood did not influence on activity and diversity of epigeic invertebrates on tussocks. Saprophagous: Isopoda and Collembola and predators: Araneae and Carabidae were the most abundant in the samples.
Źródło:
Studia Ecologiae et Bioethicae; 2011, 9, 3; 37-46
1733-1218
Pojawia się w:
Studia Ecologiae et Bioethicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chiral pyrrolidinium salts derived from menthol as precursor – synthesis and properties
Autorzy:
Janus, E.
Gano, M.
Powiązania:
https://bibliotekanauki.pl/articles/778746.pdf
Data publikacji:
2017
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
pyrrolidinium chiral salts
chiral ionic liquids
menthol
Diels-Alder reaction
Opis:
Six new chiral pyrolidinium salts with chiral substituent at quaternary nitrogen atom were synthesized with high overall yields from (-)-menthol as cheap chiral precursor and were identified by NMR and HRMS spectroscopy. It was shown that anion type had the effect on chemical shift of protons adjacent to quaternary nitrogen atom and physical properties of these salts. Salts with NTf2  or NPf2  were in a liquid state at room temperature and characterized with the highest thermal stability among others. Furthermore, chiral ionic liquid with NTf2  anion was used as solvent in Diels-Alder reaction and gave higher yield and stereoselectivity than in ionic liquids with achiral cations. Synthesized chiral salts have the potential as chiral solvents in synthesis and auxiliaries in analytical methods to improve chiral recognition.
Źródło:
Polish Journal of Chemical Technology; 2017, 19, 3; 92-98
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Assessment of the Suitability of Lemon Balm and Alder Buckthorn Wastes for the Biogas Production
Autorzy:
Czubaszek, Robert
Powiązania:
https://bibliotekanauki.pl/articles/124081.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
biogas
lemon balm
Melissa officinalis L.
alder buckthorn
Frangula alnus Mill.
Opis:
The purpose of the study was to determine the suitability of wastes from herbal industry for the biogas production. The wastes of lemon balm (Melissa officinalis L.) and alder buckthorn (Frangula alnus Mill.) were used for the biomethane potential test (BMP). The following properties were determined in the tested material: total solids content (TS), volatile solids content (VS), total Kjeldahl nitrogen content (TKN), total organic carbon content (TOC), total phosphorus content (P) and total potassium content (K). The biogas yield was monitored on the basis of the liquid displacement method. The examined wastes differed in terms of the basic properties affecting the biogas production. Alder buckthorn contained more VS, TKN and TOC, while lemon balm had a narrower C/N ratio and higher P and K content. The tested wastes were also different in terms of the biogas production kinetics. In the case of lemon balm, the highest production was observed at the beginning of the experiment, while the anaerobic digestion of alder buckthorn waste was only noticeable in the third week of the experiment. This delay caused higher cumulative methane yield of lemon balm waste by about 60% than that of alder buckthorn. Despite those differences, the wastes from both plants were suitable for biogas production, mainly as co-substrates. Co-digestion resolves the problem of utilizing such wastes and decreases the demand for energy crops such as maize which should be used as fodder and food in the first place. In addition, clear differences in the kinetics of anaerobic digestion may cause that a simultaneous use of both tested wastes will ensure continuous biogas production at a relatively high level.
Źródło:
Journal of Ecological Engineering; 2019, 20, 11; 152-158
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Alder-ash and willow communities and their diversity in the Pogorze Strzyzowskie foothills [western Carpathians]
Autorzy:
Towpasz, K
Stachurska-Swakon, A.
Powiązania:
https://bibliotekanauki.pl/articles/57512.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
alder
ash
plant community
willow
plant diversity
Pogorze Strzyzowskie Foothill zob.Strzyzow Foothill
Carpathians Mountains
Strzyzow Foothill
alder-ash community
Carici remotae-Fraxinetum
Carex pendula
Matteucia struthiopteris
Opis:
The results of phytosociological studies on the diversity of alder-ash and willow communities in the Pogórze Strzyżowskie foothills are presented. These communities, especially Carici remotae-Fraxinetum are increasingly rare in the landscape of the Carpathians. The paper supports new data allowing better understanding of the diversity of the Carici remotae-Fraxinetum in the southern Poland. On the basis of 59 phytosociological releves two sub-associations were identified: C.r.-F. chrysosplenietosum and C. r.-F. equisetetosum maximii and the form with Alnus incana. The association Carici remotae-Fraxinetum belongs to submontane regional form and to East Carpathian variant. The significance of Caltha palustris-Chaerophyllum hirsutum community is also presented, along with the role of Carex pendula and Matteucia struthiopteris. The paper provides also documentary data on sporadic occurrence of Salicetum triandro-viminalis and Salicetum albo-fragilis communities.
Źródło:
Acta Societatis Botanicorum Poloniae; 2008, 77, 4; 327-338
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zawartość pierwiastków śladowych (Mn, Zn, Cu, Cd, Pb, Cr) w liściach olsz (Alnus sp.) zastosowanych jako gatunki fitomelioracyjne na składowisku odpadów paleniskowych
Concentration of trace elements (Mn, Zn, Cu, Cd, Pb, Cr) in alder (Alnus sp.) leaves used as phytomelioration species on fly ash disposal
Autorzy:
Pietrzykowski, M.
Krzaklewski, W.
Woś, B.
Powiązania:
https://bibliotekanauki.pl/articles/372348.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
popioły
odpady paleniskowe
olsza
pierwiastki śladowe
fly ash disposal
alder
trace elements
Opis:
W pracy przedstawiono koncentrację wybranych pierwiastków śladowych (Mn, Zn, Cu, Cd, Pb i Cr) w liściach olszy zielonej, szarej i czarnej, wprowadzonych doświadczalnie na składowisko odpadów paleniskowych ze spalania węgla brunatnego „Lubień” Elektrowni PGE „Bełchatów” (Polska Centralna). Najbardziej podatnymi pierwiastkami na kumulację przez olsze były cynk i mangan oraz miedź. Akumulacja pozostałych metali (chromu, ołowiu i kadmu) była bardzo niska. Stwierdzono, że wzrastająca w warunkach osadnika olsza szara charakteryzowała się, w porównaniu do pozostałych wprowadzonych gatunków, istotnie wyższą akumulację manganu (Mn) i miedzi (Cu). Na podstawie uzyskanych wyników stwierdzono, że w warunkach składowiska popiołów nie występuje zagrożenie nadmiernym pobraniem pierwiastków śladowych przez olsze.
The paper presents concentration of selected trace elements (Mn, Zn, Cu, Cd, Pb and Cr) in the leaves of green, grey and black alders, introduced experimentally as phytomelioration species on fly ash disposal "Lubień" (in Central Poland, PGE "Bełchatów" Power Plant). The largest accumulation of the trace elements by alder species was noted in case of zinc, manganese and copper. Accumulation of the other metals (chromium, lead and cadmium) in the alder leaves was very low. An extra reducting factor of the trace elements mobility in soil and uptake by trees was caused by alkaline pH (7.9-8.0 in H2O). It was found that gray alder growing on fly ash was characterized by significantly higher accumulation of manganese (Mn) and copper (Cu), compared to the rest of the introduced alder species. Based on the results we assumed that there is no risk of toxic trace elements concentration for introduced species in the fly ash technosols substrate.
Źródło:
Zeszyty Naukowe. Inżynieria Środowiska / Uniwersytet Zielonogórski; 2013, 151 (31); 26-34
1895-7323
Pojawia się w:
Zeszyty Naukowe. Inżynieria Środowiska / Uniwersytet Zielonogórski
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamic site index model and trends in changes of site productivity for Alnus glutinosa (L.) Gaertn. in southern Poland
Autorzy:
Socha, Jarosław
Ochał, Wojciech
Powiązania:
https://bibliotekanauki.pl/articles/956987.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
height growth model
height-age relationship
forest site
evaluating site productivity
alder
Opis:
Black alder is naturally widespread across all of Europe and has an increasing importance for forest ecosystems. Thanks to the considerable tolerance to adverse climatic and edaphic environmental conditions black alder is important both in open landscapes and can also be involved in the rehabilitation of disturbed soils. Assessment of site productivity is essential for providing a frame of reference for silvicultural diagnosis and prescription in order to ensure the sustainability of existing and newly established ecosystems. The most accepted method of evaluating site productivity is the site index (SI). The aim of the presented research was to develop the SI model for black alder in southern Poland. The developed SI model was used as a tool in order to test the research hypothesis assuming the increase in site productivity for black alder in southern Poland. The research material for development of SI model were stem analysis data from 180 research plots. Both, the local model parameter, which was estimated individually for every tree, and the other parameters estimated globally for the whole data set were estimated simultaneously. Changes in site productivity were analyzed on research plots and a set of 12,974 stands from the forest inventory database. Site indices calculated using the developed model are negatively correlated with age/ positively correlated with establishment year of the stands. This confirms the existence of the phenomenon of increasing site productivity for black alder. During the last century site productivity measured with site index increased on average 5 m. Therefore, black alder that belongs to the fast-growing tree species should be considered of the increasing importance for forest management.
Źródło:
Dendrobiology; 2017, 77; 45-57
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chip grain size from the process of machining steamed and unsteamed alder wood on a cnc machining center and assessment of separation results
Autorzy:
Dzurenda, Ladislav
Banski, Adrian
Powiązania:
https://bibliotekanauki.pl/articles/24072429.pdf
Data publikacji:
2023
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
alder wood
steaming
CNC machining center
granulometric composition of chips
filter technique
Opis:
The paper discusses the particle size of the chips formed in the process of machining unsteamed and steamed alder wood on a CNC machining center. From the granulometric analysis of the chips, it follows that the average share of the coarse fraction of the chips created from unsteamed alder wood is 66.0% and steamed alder wood is 62.9%. The representation of medium-coarse fractions of alder wood with dimensions of 1.0-0.125 μm in unsteamed wood is 29.5% and steamed by 32.7%. Dust fractions with dimensions below 125 μm in unsteamed alder wood account for 4.5% and in steamed alder wood 4.4%. Chips of non-steamed or steamed alder wood with dimensions below 32 μm were not measured, so it can be concluded that no respirable dust particles with dimensions below < 10 μm are formed. Changes in the physical and mechanical properties of steamed alder wood are manifested by a decrease in the coarse fraction above 2 mm and an increase in the fraction of chips 0.125 to 2000 μm. For the separation of chips, both unsteamed and steamed alder wood, from the transport air, fabric filters and filter fabric Finet PES 4 are suitable, the separation limit of which is smaller than the size of the smallest chips formed in the milling process: aMO = 7 µm amin = 32 µm.
Rozmiar wiórów z procesu obróbki drewna olchowego parowanego i nieparowanego na centrum obróbkowym cnc oraz ocena warunków rozdzielania. W pracy omówiono ziarnistość wiórów powstających w procesie obróbki drewna olchowego nieparzonego i parzonego na centrum obróbczym CNC. Z analizy granulometrycznej zrębki wynika, że średni udział frakcji grubej zrębki powstałej z nieparzonego drewna olchowego wynosi 66,0%, a parzonego drewna olchowego 62,9%. Udział frakcji średniogrubych drewna olchowego o wymiarach 1,0-0,125 μm w drewnie nieparzonym wynosi 29,5%, a parzonym 32,7%. Frakcje pyłu o wymiarach poniżej 125 μm w drewnie olchy nie parzonej stanowią 4,5%, aw drewnie olchy parzonej 4,4%. Nie mierzono wiórów drewna olchowego nie parzonego lub parzonego o wymiarach poniżej 32 μm, można więc stwierdzić, że nie tworzą się pyły respirabilne o wymiarach poniżej 10 μm. Zmiany właściwości fizycznych i mechanicznych parzonego drewna olchowego przejawiają się spadkiem frakcji grubej powyżej 2 mm i wzrostem frakcji wiórów od 0,125 do 2000 μm. Do separacji zrębków zarówno nieparzonego jak i parzonego drewna olchowego z powietrza transportowego nadają się filtry tkaninowe i włóknina filtracyjna Finet PES 4, których granica oddzielania jest mniejsza od wielkości najmniejszych wiórów powstałych w procesie frezowania: aMO = 7 μm amina = 32 μm.
Źródło:
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology; 2023, 121; 43--50
1898-5912
Pojawia się w:
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza zmienności i korelacji wybranych cech fizycznych nasion olszy czarnej
Variability analysis and correlation of selected physical properties of black alder seeds
Autorzy:
Kaliniewicz, Z.
Trojanowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/288972.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Inżynierii Rolniczej
Tematy:
olsza czarna
nasiona
cechy fizyczne
współzależności
black alder
seeds
physical properties
inderdependence
Opis:
Dokonano pomiarów prędkości krytycznej unoszenia, grubości, szerokości, długości, kąta tarcia ślizgowego i masy oraz wyznaczono współczynniki sferyczności nasion olszy czarnej, zebranych z 3 różnowiekowych drzewostanów nasiennych. Do opisu i analizy cech wykorzystano analizę wariancji z klasyfikacją pojedynczą, korelację oraz regresję jednej zmiennej i wielu zmiennych.
Measures of critical speed of lifting, thickness, width, length, sliding friction angle and mass were taken. Moreover, spherical coefficient of black alder seeds collected from three seed tree stands of different age was determined. The analysis of variance with single classification, correlation and regression of one variable and many variables was used for description and analysis.
Źródło:
Inżynieria Rolnicza; 2011, R. 15, nr 8, 8; 167-172
1429-7264
Pojawia się w:
Inżynieria Rolnicza
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 58

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies