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    Wyświetlanie 1-9 z 9
    Tytuł:
    Delphi technique for generating criteria and indicators in monitoring ecotourism sustainability in Northern forests of Iran: Case study on Dohezar and Sehezar Watersheds
    Autorzy:
    Barzekar, G.
    Aziz, A.
    Mariapan, M.
    Ismail, M.H.
    Hosseni, S.M.
    Powiązania:
    https://bibliotekanauki.pl/articles/38399.pdf
    Data publikacji:
    2011
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    Delphi method
    ecological indicator
    monitoring
    ecotourism
    sustainability
    forest
    Iran
    watershed
    Opis:
    Ecotourism is widely accepted as the most effective type of sustainable development. For monitoring ecotourism sustainability in the Northern forest of Iran, a study was designed to help identifying criteria and indicators (C&I) with the principle goal to ensure the objectives of forest management, and at the same time – maintain processes in a sustainable manner. Indicators act as an instrument which can be used for monitoring sustainability. Hence indicators should be multidisciplinary, and cover all aspect of social, ecological, cultural, economic and institutional factors affecting sustainability of ecotourism. In this study, C&I were identified by using the Delphi approach through multidisciplinary panel team. Three rounds of meetings were held for discussions and dissemination of research to a panel of local experts. At the end of the second round we reached a consensus on 9 criteria and 61 indicators, which include 21 indicators related to ecological aspects, 8 to economic aspects, 21 to social aspects, 6 to cultural aspects and 5 to institutional aspects. The selected indicators would be applied by the Iranian Cultural, Heritage, Handicrafts and Tourism Organization for monitoring ecotourism sustainability in the Northern forest of Iran.
    Źródło:
    Folia Forestalia Polonica. Series A . Forestry; 2011, 53, 2
    0071-6677
    Pojawia się w:
    Folia Forestalia Polonica. Series A . Forestry
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A study on the butterfly diversity of Haldia industrial belt and adjacent rural area in Purba Medinipur district, West Bengal, India
    Autorzy:
    Pahari, Priti Ranjan
    Mishra, Niladri Prasad
    Sahoo, Abhijit
    Bhattacharya, Tanmay
    Powiązania:
    https://bibliotekanauki.pl/articles/1177940.pdf
    Data publikacji:
    2018
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Butterfly diversity
    dominance and similarity indices
    ecological indicator
    effect of industrialization
    evenness
    Opis:
    67 species of butterflies under 5 families and 51 genera were recorded from Haldia industrial beltand adjacent rural area. Industrial zone hadfewer species low diversity and evenness indices and high dominance index. Nymphalidae outnumbered all other families in the industrial zone with 48% of the total species of that area. Such preponderance of any single family was not evident in the rural area, likewise industrial belt had 3 dominant species but no dominant species could be seen in the rural zone. Results suggest that industrialization could alter the butterfly diversity but it was not enough to make the two sites dissimilar as revealed by the index of similarity (0.52).
    Źródło:
    World Scientific News; 2018, 97; 207-224
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Formation of the Surface Runoff of the Rivers of the Carpathian Region during the Urbanization of Slope Areas
    Autorzy:
    Hnativ, Roman
    Yakhno, Oleh
    Hnativ, Ihor
    Powiązania:
    https://bibliotekanauki.pl/articles/24201783.pdf
    Data publikacji:
    2023
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    anthropogenic load
    water object
    pollution of riverbed
    erosion process
    bottom sediment
    ecological indicator
    channel process
    Opis:
    Anthropogenic factors cause an increase in the impact on the natural system as a whole and its components. An increase in the intensity of this influence is predicted in the 21st century, and its forms are very diverse and unevenly distributed across the globe. This is most noticeable in industrialized countries, but at the same time this influence largely depends not only on the industrial potential and the level of technology, but also on the population density and urbanization of territories. Currently, much attention is being paid to the ecological problems of river catchments, which are significantly transformed as a result of technogenic influence on the natural environment. Surface runoff of water and sediments is usually formed in the river basin as slope runoff entering the river network. The river basin regulates the surface runoff formed as a result of atmospheric precipitation, which discretely falls on its surface, transferring a significant part of it into the underground runoff. The state of forest landscapes plays an important role in the formation of floods in the Dniester basin. The forest performs important ecological functions, including water protection and soil protection. Forests stabilize soils, preventing their erosion. The presence of a sufficient area of forests contributes to the regulation of surface runoff and the hydrological regime, the prevention of soil erosion and the stabilization of riverbeds. The use of water and mineral resources, construction on the banks of rivers and the laying of engineering communications through them are always different forms of artificial influence on the natural course of channel processes, which change it to varying degrees. Measures that change the channel-forming activity of the river, disrupt the flow of sediments, or radically change the hydraulic characteristics and structure of the flow have a particularly negative impact. The generalization of the dynamics of the channel process and ecological indicators within the territories of the Carpathian region will allow us to assess their impact on the state of the river network, the change in the quality of natural waters, and predict floods.
    Źródło:
    Journal of Ecological Engineering; 2023, 24, 5; 249--255
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Determination of implementation efficiency of hybrid shunting diesel locomotive, taking into account the type of field operation
    Opredelenie ehffektivnosti ot vnedrenija gibridnogo manevrovogo teplovoza s uchetom vida ehkspluatacionnojj raboty
    Autorzy:
    Falendysh, A.
    Volodarets, M.
    Bragin, M.
    Biletskyi, Y.
    Powiązania:
    https://bibliotekanauki.pl/articles/792717.pdf
    Data publikacji:
    2015
    Wydawca:
    Komisja Motoryzacji i Energetyki Rolnictwa
    Tematy:
    diesel locomotive
    railway transport
    exploitation efficiency
    diesel generator
    energy store
    power transmission
    economic index
    ecological indicator
    Źródło:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2015, 15, 3
    1641-7739
    Pojawia się w:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optimizacija sostava smesi pri regulirovanii moshhnosti benzinovogo dvigatelja metodom otkljuchenija rabochikh ciklov
    Optimization of fuel mixture in regulation of power of gasoline engine by method of cut-off of working cycles
    Autorzy:
    Gerasimchuk, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/76641.pdf
    Data publikacji:
    2014
    Wydawca:
    Komisja Motoryzacji i Energetyki Rolnictwa
    Tematy:
    petrol engine
    engine capacity
    work cycle
    switching
    exhaust gas
    electromagnetic valve
    mathematical model
    nitrogen oxide
    ecological indicator
    Źródło:
    Motrol. Motoryzacja i Energetyka Rolnictwa; 2014, 16, 3
    1730-8658
    Pojawia się w:
    Motrol. Motoryzacja i Energetyka Rolnictwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    "Ancient forest" plant species as ecological indicators of woodland condition in parks and their implications for park restoration
    Gatunki roślin "starych lasów" jako ekologiczne wskaźniki stanu zadrzewień parkowych i ich zastosowanie w rewaloryzacji parków
    Autorzy:
    Szwed, W.
    Sikorski, P.
    Rodziewicz, A.
    Sikorska, D.
    Wierzba, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/888608.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Dendrologiczne
    Tematy:
    ancient forest
    ancient woodland indicator species
    forest
    habitat type
    old woodland
    park
    park restoration
    plant association
    plant species
    woodland
    woodland condition
    ecological indicator
    Opis:
    Presence of plant species, associated with ancient forests (continuous existence >200 years) can be used for assessing woodland biodiversity. The aim of this study is to specify which plant species, included in the ancient forests plant species list, can indicate old woodlands in parks and what plant features are characteristic for certain habitat types. Richest in ancient forest plant species are those fragments of woodlands, which have existed continuously for at least 120 years, and their fragments suffered least from human pressure during that time, whereas recent woodlands are characterized by a small share of ancient forest indicator species and domination of nitrophilous species. Investigated plants usually propagate vegetatively, their seeds are of a small size and they have regularly, densely set leaves. Plants associated with ancient woodlands are good indicators of woodland continuity in parks so they can be used for age assessment in these areas. Accumulation of such plants can be a useful criterion in parks evaluation. Proposed idea of sustainable management of a park space, including selection of areas of a great ecological value, can be a chance to preserve woodland biodiversity.
    Źródło:
    Rocznik Polskiego Towarzystwa Dendrologicznego; 2009, 57
    2080-4164
    2300-8326
    Pojawia się w:
    Rocznik Polskiego Towarzystwa Dendrologicznego
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Site of spiny restharrow (Ononis spinosa L. Fabaceae) in the south-western part of Poznan
    Autorzy:
    Maciejewska-Rutkowska, I.
    Kluza-Wieloch, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/790525.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Przyrodniczy w Poznaniu
    Tematy:
    spiny restharrow
    just restharrow zob.spiny restharrow
    Ononis spinosa
    Fabaceae
    monitoring
    ecological indicator
    vascular plant
    plant community
    Molinio-Arrhenatheretea class
    Poznan city
    Opis:
    The object of the work was population of spiny restharrow (Ononis spinosa) growing within the previous ecological site “Kopanina I” in the south-western part of Poznań. In total 67 specimens were found on the area of 825 m2. About half of them were in phase of flowering. Most of plants grew in clusters. They were a component of the meadow plant community of Molinio-Arrhenatheretea class with different degree of humidity. Together, there were 50 species of vascular plants, including two protected species. Analysis of ecological indicatory numbers revealed predominance of species connected with mineral-humus, mesoand eurotrophic, neutral or alkaine soils.
    Źródło:
    Steciana; 2014, 18, 4
    1689-653X
    Pojawia się w:
    Steciana
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Seslerio uliginosae-Scorzoneretum purpureae (Festuco-Brometea class) in the Nida Basin (Malopolska Upland) after 90 years
    Autorzy:
    Towpasz, K.
    Stachurska-Swakon, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/56885.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    Seslerio uliginosae-Scorzoneretum purpureae community
    Festuco-Brometea class
    Nida basin
    Malopolska Upland
    Sesleria uliginosa
    gypsum grassland
    xerothermic grassland
    species diversity
    succession
    steppe reserve
    ecological indicator
    Opis:
    Seslerio uliginosae-Scorzoneretum purpureae is the only xerothermic community of the Festuco-Brometea class, where a rare species known as Sesleria uliginosa occurs in Poland. A couple of sites hosting this association in the Nida Basin were described in the 1920s and 1950s. All these stands are now situated in the areas designated as xerothermic nature reserves. The study aimed at describing the present-day characteristics of this rare association, the most likely being endemic in Poland, as well as the changes that have occurred in it. The species diversity and the contribution of xerothermic plants have decreased significantly in terms of their number and cover coefficient. Some of the diagnostic species of the association have become extremely rare. Sesleria uliginosa is the only one without visible changes in their dominant position in the community. Mosses, that have played a significant role before, were among the vanished species. At the same time, an increase in number and cover of mesophilous meadows species was observed. Mesophilous grasses belong to the group of species growing in significance in the phytocoenoses. The observed changes in species composition were reflected in a statistically significant increase of nitrogen indicator value. The slow process of succession observed in the Seslerio-Scorzoneretum purpureae could be attributed to the lack of appropriate land use, e.g. mowing and grazing that have been ceased in the nature reserves.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2012, 81, 3
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Tests of ecological indicators of two-way vehicles meeting Stage IIIB and Stage IV standards in real operating conditions
    Badania wskaźników ekologicznych pojazdów dwudrogowych spełniających standardy Stage IIIB i Stage IV w rzeczywistych warunkach eksploatacji
    Autorzy:
    Merkisz, Jerzy
    Rymaniak, Łukasz
    Lijewski, Piotr
    Kamińska, Michalina
    Kurc, Beata
    Powiązania:
    https://bibliotekanauki.pl/articles/32222653.pdf
    Data publikacji:
    2020
    Wydawca:
    Sieć Badawcza Łukasiewicz - Poznański Instytut Technologiczny
    Tematy:
    two-way vehicle
    ecological indicator
    Stage IIIB standard
    Stage IV standard
    road-rail tractor
    exhaust emissions
    CO2 emissions
    pojazd dwudrogowy
    wskaźnik ekologiczny
    standard Stage IIIB
    standard Stage IV
    ciągnik szynowo-drogowy
    emisja spalin
    emisja CO2
    Opis:
    The article presents the tests and analysis of ecological indicators of two rail-road tractors carried out during the real operation. The conditions of tests and vehicle constructions were characterized by the similar parameters, while the objects met the different exhaust gas emission standards: Stage IIIB and Stage IV. Apparatus from the PEMS group was used in the tests. In the analysis of ecological indicators, the unit emission of harmful gaseous compounds and particulates was determined. The supplementation is the assessment of toxicity indicators, which are the reference of individual compounds to CO2 emission. More favourable ecological characteristics were obtained by a vehicle meeting the newer exhaust gas emission standard, which resulted mainly from the use of advanced exhaust gas treatment systems in its construction.
    W artykule zaprezentowano badania i analizę wskaźników ekologicznych dwóch ciągników szynowo-drogowych zrealizowane podczas rzeczywistej eksploatacji. Warunki testów i konstrukcje pojazdów charakteryzowały się zbliżonymi parametrami, przy czym obiekty spełniały odmienne normy emisji spalin: Stage IIIB i Stage IV. W badaniach zastosowano aparaturę z grupy PEMS. W analizie wskaźników ekologicznych wyznaczono jednostkową emisję szkodliwych związków gazowych i cząstek stałych. Uzupełnienie stanowi ocena wskaźników toksyczności, będących odniesieniem poszczególnych związków do emisji CO2. Korzystniejsze charakterystyki ekologiczne uzyskał pojazd spełniający nowszą normę emisji spalin, co wynikało przede wszystkim z zastosowania w jego konstrukcji zaawansowanych układów oczyszczania spalin.
    Źródło:
    Rail Vehicles/Pojazdy Szynowe; 2020, 1; 1-9
    0138-0370
    2719-9630
    Pojawia się w:
    Rail Vehicles/Pojazdy Szynowe
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-9 z 9

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