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Wyszukujesz frazę "assessment indices" wg kryterium: Wszystkie pola

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    Wyświetlanie 1-4 z 4
    Tytuł:
    Zastosowanie zooindykacji synekologicznej do waloryzacji ekosystemów leśnych
    The synecological zooindication as a tool for the assessment of forest ecosystems
    Autorzy:
    Sławska, M.
    Smoleński, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1026515.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    Staphylinidae
    owady
    ochrona lasu
    lesnictwo
    kusakowate
    bioindykatory
    Collembola
    bioindykacja
    skoczogonki
    zooindication
    indices
    communities
    collembola
    staphylinidae
    Opis:
    This paper gives methodological proposal of natural value valorisation by synecological zooindication. The usefulness of indices based on invertebrate communities in forest ecosystem valorisation was proved. Two groups of invertebrate were chosen for zooindication: Collembola (Apterygota) and Staphylinidae (Coleoptera). The following indices were used for description of staphylinid communities: the index of community natural quality Bc, the index of community abundance BRC, the index of species diversity H’, the share of relict species DR. Collembolan communities were described using the index of faunal value WF. All this indices were applied to valorisation of the pine forest of Białowieża Primeval Forest. As a result, 17 of studied forest units were classified into the three groups: I – the best preserved pine forests, which can serve as a model for forest management, II – properly managed forests and III – degraded forests with simplified structure of epigeic−soil fauna.
    Źródło:
    Sylwan; 2003, 147, 02; 81-88
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena kondycji drzewostanów Tatrzańskiego Parku Narodowego za pomocą metody drzewa decyzyjnego oraz wielospektralnych obrazów satelitarnych Landsat 5 TM
    Assessment of the condition of forests in the Tatra National Park using decision tree method and multispectral Landsat TM satellite images
    Autorzy:
    Ochtyra, A.
    Zagajewski, B.
    Kozłowska, A.
    Marcinkowska-Ochtyra, A.
    Jarocińska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/972978.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    drzewostany
    kondycja drzew
    metody oceny
    drzewa decyzyjne
    teledetekcja satelitarna
    obrazy satelitarne
    satelita Landsat TM
    leśnictwo
    lasy górskie
    Tatrzański Park Narodowy
    forest
    assessment of condition
    vegetation indices
    remote sensing
    the Tatras
    Landsat TM
    Opis:
    The paper presents a method of Landsat 5 Thematic Mapper satellite image processing to assess the condition of forests in the Tatra National Park (southern Poland). Selected images were acquired on 1987/09/01, 2005/09/02 and 2011/09/03 from the same sensor with maximum time interval for the first and last scene and from similar phenological period. Firstly, the data were radiometrically corrected using the ATCOR 2/3 software and Digital Terrain Model from the ASTER mission. Quality of the correction was assessed calculating RMSE for reflectance values from images and resampled spectral characteristics collected in terrain. RMSE was in range 3−10%. Next, basing on Landsat images, Normalized Difference Infrared Index (NDII) and a Maximum Likelihood supervised classificatory, following dominant land cover types were identified: forests (including dwarf pine), grasslands, rocks, lakes, shadows (additionally clouds were dis−tinguished on data from 1987/09/01). It allowed to select forest areas with producer accuracy not worse than 97.69% and user accuracy not worse than 98.31%. On corrected Landsat images Normalized Difference Vegetation Index (NDVI, an overall vegetation state) and Moisture Stress Index (MSI, canopy water content) were calculated. Vegetation indices discriminated forest state using the decision tree method. The worst overall condition was observed for the 1987 (about 21% of forest stands were in the worst condition and 87% were in medium condition), while the best one in 2005 (75.51% forest stands were in good condition and 10.66% were in the best condition). In case of 2011, the overall condition was quite good, but there were large areas with poor condition caused by bark beetle outbreaks. Proposed method allows for a fast and objective assessment of forest condition. It is possible to detect damaged areas or stands in poor condition. It can be complement for traditional methods of monitoring and management in forestry and nature protection.
    Źródło:
    Sylwan; 2016, 160, 03; 256-264
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zastosowanie modeli ryzyka uszkodzenia drzewostanu przez wiatr do oceny zagrożenia lasów nadleśnictwa
    Application of wind damage risk models for the assessment of danger to stands within a forest district
    Autorzy:
    Bruchwald, A.
    Dmyterko, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/974051.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    wiatry
    szkody w lesie
    drzewostany
    ryzyko uszkodzenia
    modele ryzyka uszkodzenia
    leśnictwo
    zagrożenia lasu
    ocena zagrożenia
    nadleśnictwa
    RDLP Kraków
    wind damage
    risk models
    wind damage risk indices
    Opis:
    The study presents a risk model for stand damage caused by wind. It is associated with the following groups of factors: the variable characteristics of stand, its permanent characteristics, the position of a forest district in the region of the country, the damage that occurred in the stand in the past. The model generates a risk factor for tree damage ranging from 0 to 3. The higher value it indicates, the higher risk for the stand. The model serves for the assessment of risks to stands in the Cracow Regional Directorate of the State Forests.
    Źródło:
    Sylwan; 2011, 155, 07; 459-471
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena zmienności cech adaptacyjnych oraz określenie wartości genetyczno-hodowlanej pochodzeń objętych ochroną w Regionalnym Banku Genów buka zwyczajnego RDLP w Katowicach
    Assessment of the variation of the adaptation features and of the gegetic breeding value of provenances protected under the scheme of the Regional Gene Bank for European beech operated by the Katowice Regional Forest Directorate
    Autorzy:
    Sabor, J.
    Stanuch, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/1017107.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    zmiennosc cech
    buk zwyczajny
    Regionalny Bank Genow Buka RDLP Katowice
    proweniencje
    lesnictwo
    adaptacja
    wartosc hodowlana
    Fagus sylvatica
    wartosc genetyczna
    drzewa lesne
    provenance
    adaptation features
    beech
    regional gene bank
    selection indices
    Opis:
    The study focuses on the variation of the adaptation features of forty partial populations of beech from the area managed by the Katowice Regional Forest Directorate. The growth and development of the provenances were assessed in the years 1998−2003 by measuring the height and survival of seedlings in the juvenile phase, i.e. up to the fourth year of planting on comparative plantations of the Regional Gene Bank that were established at two different forest sites of the area. The selection indices of the provenances were calculated from the variation components.
    Źródło:
    Sylwan; 2007, 151, 10; 25-37
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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