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Tytuł:
Wpływ typu siedliskowego lasu na koszty odnowienia lasu
Impact of the forest habitat type on the costs of reforestation
Autorzy:
Adamowicz, K.
Powiązania:
https://bibliotekanauki.pl/articles/979299.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
material cost
intangible cost
forest habitat
forest economics
reforestation
cash flow
Opis:
The article is a continuation of research on the relationship between forest habitat type and economic aspects of forest management. It assesses the impact of forest habitat types on reforestation costs. As a part of the implementation of the assumed work objectives, economic activities related to afforestation were identified. The research was carried out using the passive experiment method. The research was of registration and observational character. During the acquisition of the necessary data, there was no interference in the forestry work. The costs were analysed in three categories: total costs, tangible costs and intangible costs. Research conducted on the basis of source data obtained from 629 forest plots with a total area of 1100 ha. Based on the results of the research, it was found that the type of forest habitat significantly differentiated all the analyzed costs of reforestation. The forest habitat type differentiated material costs (48%) to a greater extent than intangible costs (43%). In addition, reforestation of deciduous forests has been proven to generate higher forest renewal costs than coniferous forest habitats. The costs of forest regeneration in forest habitats were higher than the costs incurred in coniferous habitats. Information on differences in forest management costs in relation to forest habitats can be used in further research on the forest management support system. The presented research contributes to the development of work on building economic models of the stands. These models must take into account not only the general economic aspects, but also the natural aspects of the forest that affect financial flows related to forest management.
Źródło:
Sylwan; 2020, 164, 07; 531-538
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Current data about the reservoir for Borrelia burgdorferi S.L. in the district of Mazury Lakes, Poland
Autorzy:
Sinski, E.
Pawelczyk, A.
Karbowiak, G.
Powiązania:
https://bibliotekanauki.pl/articles/837792.pdf
Data publikacji:
1998
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
small rodent
Polska
forest habitat
Mazurian Lakeland
Borrelia burgdorferi
Ixodes ricinus
Źródło:
Annals of Parasitology; 1998, 44, 3
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Occurrence of Ixodes ricinus in different types of forest habitats of the city of Poznan and their infection rate with Borrelia burgdorferi sensu lato
Autorzy:
Michalik, J.
Rejmenciak, A.
Powiązania:
https://bibliotekanauki.pl/articles/839982.pdf
Data publikacji:
1998
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
infection
city
Lake Rusalka
urban forest
forest habitat
Borrelia burgdorferi
Poznan city
Ixodes ricinus
tick
Źródło:
Annals of Parasitology; 1998, 44, 3
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
European ash in the Bardzkie Mountains - species characterization based on forest documentation
Autorzy:
Filipiak, M
Dolatowska, A.
Kmiecik, M.
Pilarek, Z.
Powiązania:
https://bibliotekanauki.pl/articles/40973.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Sudetes Mountains
Bardzkie Mountains
forest habitat type
European ash
Fraxinus excelsior
forest documentation
ecology
forest stand composition
Opis:
On the basis of forest taxation data the presence of European ash in the Bardzkie Mountains area (central part of the Sudety Mountains) was analysed. This included the reckoning of the number of sites and the area covered by ash in various forest habitat types, age classes, altitude zones and on variously slanted and exposed mountain sides. The decline in the number of ashes in younger age classes and complete absence of trees older than 140 years have been noted. In the Bardzkie Mountains ash is the main species forming the forest on mountain riparian forest stands (a 43% participation in the area of forest of this type). Considering the number of specimens most ashes are scattered in mountain broadleaved forest. To the altitude of 650 m ash’ participation in the forest stand composition is stable (30% of analysed locations), but it occupies only 2.6% of total forest area.
Źródło:
Dendrobiology; 2004, 52; 17-21
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sensitivity of Tilia cordata seeds to dehydration and temperature of liquid nitrogen
Autorzy:
Chmielarz, P
Powiązania:
https://bibliotekanauki.pl/articles/41625.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
dehydration
drying
liquid nitrogen
temperature
Tilia cordata
forest habitat
sensitivity
scarification
cryopreservation
seed
Opis:
The aim of the study was to assess the susceptibility of small-leaved lime (Tilia cordata Mill.) seeds to drying and freezing in liquid nitrogen (-196°C). Seed samples were frozen in liquid nitrogen for 24 h at 11 different levels of seed moisture content (m.c.), ranging from 3.1% to 22.8% (fresh weight basis). All samples, including unfrozen control samples, were subjected to scarification with concentrated sulphuric acid (Tylkowski 1998) either before or after freezing. Seed pre-treatment before germination (at 3~15°C/16~8h) involved cold stratification at 3°C without substrate. Seed drying to 3.1% m.c. significantly reduced their germinability (to 63%), as compared to the high germinability (82-88%) of seeds with 5.2-20.9% m.c. Thus seeds of this species can be assigned to the ‘suborthodox' category. Such a high germinability (79-87%) was preserved after freezing in liquid nitrogen in samples dried to 9.0-17.4% m.c. if scarification was performed before freezing, and in samples dried to 9.1-16.2% m.c. if scarification was performed after freezing. The highest percentage of seedlings emerged after freezing in liquid nitrogen from seeds dried to 11.1-20.1% m.c. (emergence 65-75%) if scarification was performed before freezing, and from seeds dried to 7.3-17.8% m.c. (emergence 53%-71%) if scarification was performed after freezing.
Źródło:
Dendrobiology; 2002, 47 Supplement
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Próba zastosowania metod liczbowej wyceny gleb na podstawie Indeksu Trofizmu Gleb Leśnych (ITGL) oraz Siedliskowego Indeksu Glebowego (SIG) do opisu zmienności warunków siedliskowych na zrekultywowanych dla leśnictwa zwałowiskach KWB "Bełchatów"
The assessment of possibility of using soil quality estimation numerical methods based on the forest soil trophism index (ITGL) and soil site index (SIG) for description of habitat conditions on spoil heap KWB "Bełchatów" reclaimed to forest
Autorzy:
Pietrzykowski, M.
Pająk, M.
Krzaklewski, W.
Powiązania:
https://bibliotekanauki.pl/articles/216133.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Gospodarki Surowcami Mineralnymi i Energią PAN
Tematy:
tereny pogórnicze
rekultywacja
indeks glebowy
siedlisko leśne
post-mining sites
reclamation
soil index
forest habitat
Opis:
W pracy analizowano możliwości zastosowania wskaźników liczbowej wyceny gleb: ITGL oraz SIG (Brożek 2001; Brożek i in. 2001, 2006) do opisu zmienności siedlisk kształtujących się na zrekultywowanych dla leśnictwa zwałowiskach KWB 'Bełchatów'. Badania prowadzono w czterech wariantach substratów stanowiących skały macierzyste dla powstających gleb: zasobniejszych, piaszczysto-gliniastych czwartorzędowych (NWL na zwałowisku wewnętrznym) i gliniasto-pylastych (NZL na zwałowisku zewnętrznym) oraz uboższych, czwartorzędowych piaskach (NWG na zwałowisku wewnętrznym) i kwaśnych mioceńskich piaskach po neutralizacji kredą jeziorną (NZG na zwałowisku zewnętrznym). Na podstawie obliczonych wartości testowanych wskaźników dokonano wyceny siedlisk według skali opracowanej dla warunków 'naturalnych'. Stwierdzono, że spośród dwu testowanych wskaźników w warunkach zwałowisk KWB 'Bełchatów' lepiej odzwierciedlającym zmienność badanych gleb był ITGL. Jednak dla lepszego opisu siedlisk kształtujących się w tych warunkach należałoby zmodyfikować wycenę wskaźników cząstkowych omawianych indeksów, opierając się na zmienności właściwości gleb pogórniczych.
In this work the analyses of possibilities of using soil quality indexes ITGL and SIG (according to Brożek 2001; Brożek et al. 2006) were presented for description of forest habitat developed on spoil heap 'Bełchatów' reclaimed to forest. The study was conducted on 4 substrate variants with different parent rock material: 1) higher level of fertilize - Quaternary loamy-sands (NWL on external slope) and loamy-silt (NZL on internal slope); and 2) lower level of fertilize - Quaternary sands (NWG on internal slope) and acidic Miocene sands strata after bog lime neutralization (NZG on external slope). Based on value of calculated indexes the site quality estimation was made according to scale worked out for natural forest habitats. It was concluded that from among two soil quality indexes the ITGL showed better variability of soil conditions on spoil heap 'Bełchatów'. However the modification of partial indexes of ITGL for better description of site condition on this kind of object has to be necessary with adjusting of post-mining soil characteristics.
Źródło:
Gospodarka Surowcami Mineralnymi; 2010, 26, 3; 155-165
0860-0953
Pojawia się w:
Gospodarka Surowcami Mineralnymi
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Post-fire succession on abandoned fields in coniferous forest habitat [Nord-East Poland]
Autorzy:
Kwiatkowska-Falinska, A J
Powiązania:
https://bibliotekanauki.pl/articles/57402.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
post-fire succession
abandoned field
coniferous forest
forest habitat
secondary succession
spatial pattern
temporal pattern
species turnover
fire
Polska
Opis:
In July, 1992, fire swept through the Jelonka Reserve (52o35'33"N; 23o22'10"E). Litter, herbs layer and juniper shrubs were razed and the tree trunks of Pinus sylvestris and Populus tremula damaged, which resulted in their death the following year. Five research plots of 25 m2 each were established in the post-fire area. The species present there and their degrees of coverage were listed on the Londo scale between 1993 and 2002. The calculation of average degrees of coverage for individual populations allowed for the establishing of a chronological pattern of post-fire succession. The following findings have been made: 1) the primary function in colonization belongs to species of guerilla strategy of growth whose dormant buds survived fire underground (Holcus mollis, Calluna vulgaris and Populus tremula) or phalanx strategy of growth (Corynephoms canescens); 2) the dominants of the initial succession stage are perennial grasses, not therophytes; 3) the spatial pattern of succession is influenced by the occurrence of H. mollis or C. canescens in a particular location; 4) the initial stage terminates with the occurrence and further growth of C. vulgaris clumps; the post-fire succession in the Jelonka Reserve attained a brushwood stage faster in comparison to secondary succession, formerly triggered by the cessation of cultivation on arable land.
Źródło:
Acta Societatis Botanicorum Poloniae; 2008, 77, 3; 245-254
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena wpływu wybranych zabiegów hodowlanych i typów siedliskowych lasu na koszt pozyskania surowca drzewnego w czyszczeniach i trzebieżach
Evaluating the impact of silvicultural treatments and forest habitat type on the cost of timber harvest in cleanings and thinnings
Autorzy:
Adamowicz, K.
Gostołek, R.
Jaszczak, R.
Szczypa, P.
Szramka, H.
Powiązania:
https://bibliotekanauki.pl/articles/989459.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
gospodarka lesna
typy siedliskowe lasu
zabiegi hodowlane
pozyskiwanie drewna
koszty
trzebieze
czyszczenia pozne
forest economics
forest habitat type
costs
silviculture
Opis:
Integrating the economic aspects of forest management (cost) with ecological elements of timber production (habitat type) significantly contributes to a better understanding of forest growth and utilisation. The type of silvicultural treatments and forest habitat types determine number of economic activities carried out in the stands and have an important impact on the associated costs. The aim of the study was to describe the impact of silviculture treatments and types of forest habitat on unit timber harvesting cost. We summarised the cost of timber logging depending on the harvest practices and types of habitats. In total, costs of treatments performed on the 2.5 thousand ha area were analysed. Obtained results were combined in relation to average unit costs of raw timber logging from individual habitats and silviculture treatments such as late cleanings and thinnings. The studied impact was assessed with standard deviation (SD) based on the assumption that the higher its value, the more important role of silvicultural treatments and forest habitats in defining the cost of raw timber harvesting. Our study showed that both factors (type of forest habitat and silvicultural treatment) had an effect on variability of timber logging costs. Comparing deciduous and coniferous habitats, higher costs were reported for the latter one. The highest unit cost of timber logging was found on the fresh coniferous habitat, while the lowest on the wet mixed forest. Moreover, the highest cost was reported for timber raw material harvested from late cleanings and the lowest from late thinnings. SD of the average cost of timber harvest ranged from 12.67 to 13.53 PLN depending on the silviculture treatments and from 0.68 to 2.39 PLN depending on the forest type. Our findings are important preliminary steps in broader study regarding revenues generated from forest stands growing on different habitats. Eventually it would help in assessing the profitability of economic activity that depends on environmental conditions of forest management.
Źródło:
Sylwan; 2016, 160, 12; 993-1001
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kolej rębu drzewostanów sosnowych według kryteriów ekonomicznych
Rotation age of pine stands on the basis of economic criteria
Autorzy:
Bednarski, K.
Miscicki, S.
Powiązania:
https://bibliotekanauki.pl/articles/972950.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
pozyskiwanie drewna
drzewostany sosnowe
kryteria ekonomiczne
leśnictwo
gospodarstwa zrębowe
kolej rębu
final cut
forest habitat type
income
maturity
value
Opis:
There is a lack of an acceptable and practical method for calculating the optimal moment at which a forest stand is considered ready for felling. The aim of the research was to: (1) develop a concept for the calculation of the rotation age for forest stands based on economic criteria and (2) develop a methodology for obtaining and processing empirical data necessary for such calculation. It is assumed that stands are felled at the age affecting the age structure (area of age classes) of a forest in such a way that the difference between revenues from the sale of timber harvested in inter−mediate cuts and final cuts and the costs of timber harvest, silvicultural management, forest protection and administration is the largest. The developed method of calculating the rotation age was tested on the example of three Scots pine forests under the clear−cutting system representing typical forest habitats. The collected empirical material consisted of (1) own measurement data used to determine the value of the growing stock, and (2) data from the State Forests Information System used to determine the management costs, timber prices and the volume of timber harvested from intermediate cuts. These data helped to calculate the relationship between the income from a forest (including: revenues from the final and intermediate cuts, costs of forest management as well as timber harvesting and extraction) and the rotation age. The highest net income was when the rotation age was 108−125 years. The more fertile habitat, the shorter was the rotation age. The proposed methodology can be treated as a useful tool for the calculation of rotation age related to forest management in Poland. The dependence of income from a forest on the rotation age can be used to calculate losses that may arise when other than an optimal rotation age is applied.
Źródło:
Sylwan; 2016, 160, 03; 197-206
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bezkręgowce zasiedlające owocniki hubiaka pospolitego (Fomes fomentarius) w różnych typach siedlisk leśnych
Invertebrates of basidiocarps of tinder fungus (Fomes fomentarius) in different types of forest habitats
Autorzy:
Lik, M.
Powiązania:
https://bibliotekanauki.pl/articles/1008881.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
siedliska lesne
hubiak pospolity
Fomes fomentarius
zasiedlenie
bezkregowce
grupy systematyczne
fruiting bodies
fomes fomentarius
forest habitat type
settlement
Opis:
The aim of the study was to describe changes in abundance and settlement (number of specimens per 100 g of fungi) of basidiocarps of tinder fungus (Fomes fomentarius) by the invertebrates in different types of forest habitats. Tinder fungus that contained the invertebrates were collected from four sample plots located in the Tuchola Forest and the Myślęcinek – an area located within the administrative borders of Bydgoszcz city. Statistically differences between the settlement of basidiocarps by the invertebrates in different types of forest habitats were found.
Źródło:
Sylwan; 2011, 155, 08; 546-554
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ typu siedliskowego lasu na wielkość i masę igieł opadających w ciągu roku w 30-letnich drzewostanach sosnowych
Impact of the forest habitat type on the size and mass of the annual needles fall in 30-year-old Scots pine stands
Autorzy:
Turski, M.
Beker, C.
Jaszczak, R.
Szymański, A.
Powiązania:
https://bibliotekanauki.pl/articles/979218.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
drzewostany sosnowe
sosna zwyczajna
Pinus sylvestris
czynniki siedliska
typy siedliskowe lasu
leśnictwo
opad igieł
needles fall
mass and size
forest habitat
Opis:
The article presents the size and weight of needles in 30−year−old Scots pine stands over one year with regard to the site conditions in which they grow (fresh mixed coniferous and fresh coniferous habitats). Two rectangular 1−hectare sample plots, which differed from one another only with the habitat type, were set up in Maszewo forestry in the Cybinka Forest District (western Poland). The plots were divided into 100 one−acre subplots, which were ascribed numbers from 1 to 100. In order to pick 10 plots a random number generator was used. The middle of the chosen plot became the central point of the 1−acre circular sample plots, where the measurements of all diameters at breast height and the height of every fifth tree were taken. Moreover, it was also the place where a square needle collection container (20 cm high, 1 m2 area) was located. The empty containers were placed in both experimental plots on 1st August 2017 and they were emptied on the first day of each month, throughout the entire year. The entire material was dried at the temperature of 65°C with an induced air flow. The needle mass was measured with the accuracy up to 0.001 g. Out of the samples collected each month, 300 needles were chosen at random in order to measure their length (after they were scanned with WinFOLIA program the size of each individual needle was established). Throughout the entire year, on fresh coniferous habitat the mass of the fallen needles was 2.8203 t/ha and it was by over 20% higher than it was determined for the fresh coniferous habitat. The lowest mass of the needle fall in each stand was in January, and the greatest in September on the fresh coniferous habitat, whereas in October on the fresh mixed coniferous habitat. In both of these cases, it was more than a half of the needle mass for the entire year. The average length of the fallen needles was in each month smaller on the fresh coniferous habitat and the differences between the analyzed stands were significant. The difference was the smallest (3.3%) in May, while the greatest (18.8%) in February. Moreover, significant differences in the length of the needles in the particular months in both types of stands were observed. The coefficient of variation for the needles length on the fresh mixed coniferous habitat ranged from 17.4 to 22.8%, whereas on the other habitat it varied between 14.2 and 21.6%. The mean of the coefficients of variation for the particular months was lower by 2.0% and for fresh coniferous habitat it reached 18.25%.
Źródło:
Sylwan; 2020, 164, 02; 118-126
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Relacje między typem siedliskowym lasu a zbiorowiskiem roślinnym w warunkach górskich
Relationships between forest habitat types and phytosociological classification in mountain environment
Autorzy:
Pielech, R.
Malicki, M.
Powiązania:
https://bibliotekanauki.pl/articles/990972.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
lasy gorskie
Lesny Kompleks Promocyjny Sudety Zachodnie
fitosocjologia
typy siedliskowe lasu
zbiorowiska roslinne
syntaksonomia
forest habitat types
phytosociological classification
syntaxonomy
Opis:
Two main typological systems (forest habitat types and phytosociological classification) are used in forest research in Poland. The paper presents relationships between forest associations and forest habitat types in mountain environment of the Promotional Forest Complex ‘Sudety Zachodnie' (SW Poland). The results show that the link between these two topological systems is rather weak and ambiguous. This has strong implications for nature conservation in Poland, where forestry databases are widely used for inventories of protected habitats (in the sense of Habitat Directive).
Źródło:
Sylwan; 2014, 158, 09; 675-683
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sorption properties of lithogenic soils from non-forest areas of the Tatra National Park
Autorzy:
Niemyska-Lukaszuk, J
Miechowka, A.
Powiązania:
https://bibliotekanauki.pl/articles/1450794.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
organic matter
Tatras Mountains
mountain soil
rendzina soil
Tatra National Park
non-forest area
soil
forest habitat
lithogenic soil
sorption property
biotic element
terrestrial ecosystem
Opis:
Investigations have been carried out on the soil material taken from 46 profiles representing lithogenic soils from non-forest areas of the Tatra National Park. When selecting soil material an altitude above sea level (over 1250 m a.s.l.), a rock parent type (non-calcareous and calcareous) were taken into account, in case of non calcerous soils, the weakly developed soils - rankers were selected. On the basis of the investigetions the following conclusions have been drawn: sorption properties of ectohumus horizons in most of investigated lithogenic soils (rankers and rendzinas) are differ- enciated and formed under the influence of parent rocks. Ectohumus of Oh horizons of rankers sorbed exchangeable cations in following order H+>Ca2+≥Mg2+>K+>Na+. In composition of cations in Oh horizons of rendzinas dominated cations of calcium and the order was as follows: Ca2+>Mg2+>H+>K+≥Na+. In ectohumus of Oh horizons of rendzinas occurring under bilberry heath and pine dwarf and rankers the composition of exchangeable ions as well as a degree of base saturation were close. In investigated soils sorption properties of mineral or organic-mineral horizons AC or ABC, occurring in direct contact with the parent rock, were formed under the influence of lithogenic factor.
Źródło:
Acta Agrophysica; 2001, 50; 207-215
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gospodarka powierzchnią oraz charakterystyka drzewostanów i siedlisk na rekultywowanych zwałach odpadów górnictwa węgla kamiennego na obszarze Nadleśnictwa Rybnik (rejon GOP)
Areal balance management, tree stands and sites characteristic on a reclaimed spoil heap of hard coal mining in the Rybnik Forest Inspectorate (upper silesian industrial region-GOP)
Autorzy:
Pietrzykowski, M.
Krzaklewski, W.
Tomanek, M.
Hajduk, P.
Powiązania:
https://bibliotekanauki.pl/articles/372272.pdf
Data publikacji:
2010
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
górnictwo
węgiel kamienny
zwałowisko
rekultywacja
bilans powierzchniowy
drzewostan
siedlisko leśne
hard coal
mining
spoil heap
reclamation
areal balance
stand trees
forest habitat
Opis:
Powierzchnia gruntów wymagających rekultywacji w Polsce wynosi ponad 64 tys. ha, w tym w przemyśle wydobywczym około 44 tys. ha. Dominującym kierunkiem rekultywacji jest kierunek leśny (około 60%). Zwały odpadów górnictwa węgla kamiennego w rejonie GOP należą do obiektów uciążliwych dla środowiska i często powstają na terenach wyłączanych z produkcji leśnej. Znaczna część rekultywowanych i zalesionych zwałowisk przekazywana jest pod administrację LP. Tereny te obejmowane są Planami Urządzania Lasu, w których zawarta jest charakterystyka siedlisk i drzewostanów. Celem niniejszej pracy była analiza powierzchniowa rekultywacji leśnej, wieku i składu gatunkowego drzewostanów oraz prognozowanych siedliskowych typów lasu na zwałach znajdujących się na terenie Nadleśnictwa Rybnik (rejon GOP). Stwierdzono, że na analizowanym obszarze powierzchnia wyłączona z produkcji leśnej dla tworzenia zwałowisk wynosiła 254,5 ha, zaś powierzchnia zrekultywowana wynosi 132,3 ha. W większości siedliska na zwałach zdiagnozowano jako BMśw (53%), a dominującym gatunkiem jest sosna zwyczajna (40%), w tym w znacznej części pochodząca z samosiewu. Drzewostany znajdują się aktualnie w I i II klasie wieku. Wyniki pracy mogą mieć znaczenie dla planowania hodowlanego w odniesieniu do drzewostanów na rekultywowanych zwałach.
The surface areas requiring reclamation in Poland amounts 64,000 ha, of which, 44,000 ha are occupied by mining. The predominant reclaimed postmining use is forestery (60%). In the area of Upper Silesia, spoil heaps pose a threat to the environment, and they are often deposited on surfaces excluded from forest production. The majority of these reclaimed and afforested spoil heaps is transferred to the administration of The State Forests National Forest Holding (Lasy Państwowe). These areas are included into the Forest Management Plan andcontain characteristics of both forest sites and tree stands. The aim of this study was to analyze the area of forest reclamation, tree stand age, species composition and forest site classification on spoil heaps located in the Rybnik Forest Inspectorate . Findings show that in the analyzed area, surfaces excluded from forest production amounted 245.5 ha, and the surface of reclaimed area amounted 132.3 ha. The majority of these areas were defined as young, mixed coniferous forest sites (BMśw 53%). Scots pine (Pinus sylvestris L.) is the predominant species (40%), dervived mostly from self-seeding andstands are in the first or second age class. The result of these studies can be important during silviculture planning and management for tree stands on reclaimed sites.
Źródło:
Zeszyty Naukowe. Inżynieria Środowiska / Uniwersytet Zielonogórski; 2010, 137 (17); 75-85
1895-7323
Pojawia się w:
Zeszyty Naukowe. Inżynieria Środowiska / Uniwersytet Zielonogórski
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Soil enzymatic activity in deteriorated forest ecosystems in the operation area of the Pulawy S.A. Nitrogen Factory
Autorzy:
Bielinska, E J
Domzal, H.
Powiązania:
https://bibliotekanauki.pl/articles/1450115.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
Pulawy Forest Inspectorate
forest ecosystem
nitrogen work
enzyme activity
biological property
forest soil
Zyrzyn commune
biochemical property
soil
Pulawy Nitrogen Factory
operation area
forest habitat
soil property
degraded ecosystem
anthropogenic ecosystem
environmental deterioration
Opis:
The present research (1998-1999) was carried out to evaluate soil enzymatic activity in the deteriorated forest ecosystems within the operation range of the Puławy S.A. Nitrogen Factory. Investigation covered podzolic soils from strong and medium forest pollution zones. Objects from the Pulawy Forest Inspectoratejwere represented, i.e. samples from the Puławy district (Inspectorate Wronów) and Żyrzyn district (Inspectorate Zagórki). The obtained results indicate high degree of soil environment deterioration in the investigated forest habitats, in the form suppressed enzymatic activity and deformation of chemical properties. A significant increase in the enzymatic soil activity with the increasing distance from the nitrogen factory was observed. Changes in the activity of soil enzymes were related to the soil chemical properties.
Źródło:
Acta Agrophysica; 2001, 51; 7-13
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
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