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    Wyświetlanie 1-12 z 12
    Tytuł:
    Drzewostanowa metoda określania uszkodzenia świerka
    Method of assessment the damage to Norway spruce stands
    Autorzy:
    Dmyterko, E.
    Bruchwald, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1016295.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    defoliacja
    uszkodzenia drzew
    wskaznik uszkodzenia drzew
    metoda drzewostanowa
    Picea abies
    lesnictwo
    kryteria oceny
    metody oceny
    swierk pospolity
    drzewa lesne
    methods of assessment the damage to stands
    norway spruce
    Opis:
    Paper presents two variants of the method of assessment the damage to the Norway spruce stands that were determined on the basis of the crown development. The first one is based on the tree's defoliation, the other – on the tree's damage index W that includes defoliation (feature A), condition of the tree−top (feature B) and tree's vitality (feature C). Mean defoliation or index W is used to determine one of the four classes of the stand damage. The accuracy of both variants was worked out and minimum number of sample trees required within assumed standard errors of assessed features. Alarming picture of Norway spruce stands in Polish Carpathians and Sudety Mountains appeared for the damaged stands prevail while there is no undamaged stands.
    Źródło:
    Sylwan; 2007, 151, 06; 24-33
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Przerzedzenie koron drzew jako efekt stresu i zrodlo stresu
    Autorzy:
    Sierota, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/824178.pdf
    Data publikacji:
    1995
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    defoliacja
    choroby roslin
    uszkodzenia drzew
    zanieczyszczenia przemyslowe
    stresy
    przerzedzenie korony
    lasy
    lesnictwo
    stres wodny
    czynniki stresowe
    Źródło:
    Sylwan; 1995, 139, 08; 5-24
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Drzewostanowa metoda określania uszkodzenia jodły
    Method of assessment the damage to silver fir stands
    Autorzy:
    Dmyterko, E.
    Bruchwald, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1015683.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    uszkodzenia drzewostanow
    defoliacja
    wskaznik uszkodzenia drzew
    metoda drzewostanowa
    metody badan
    lesnictwo
    drzewostany jodlowe
    methods of assessment the damage to stands
    silver fir
    Opis:
    Paper presents two variants of the method of assessment the damage to the silver fir stands that were determined on the basis of the crown development. The first one is based on the tree's defoliation, the other – on the tree's damage index W that includes defoliation (feature A), condition of the tree−top (feature B) and tree's vitality (feature C). Mean defoliation or index W is used to determine one of the four classes of the stand damage. The accuracy of both variants was worked out and minimum number of sample trees required within assumed standard errors of assessed features was determined.
    Źródło:
    Sylwan; 2008, 152, 05; 26-33
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Stopień uszkodzenia drzewostanów jodłowych Gór Świętokrzyskich
    Degree of the damage to silver fir stands in the Swietokrzyskie Mountains
    Autorzy:
    Dmyterko, E.
    Bruchwald, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/989225.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Gory Swietokrzyskie
    drzewostany jodlowe
    jodla pospolita
    Abies alba
    uszkodzenia drzew
    defoliacja
    zywotnosc drzew
    abies alba
    damage
    defoliation
    increment reaction
    świetokrzyskie mountains
    Opis:
    The study assesses the damage to silver fir from the canopy layer in the stands of the Świętokrzyskie Mountains (central Poland) using three methods. The suitability of these methods was also analysed by calculating the correlation between increment of the diameter at breast height (DBH) and the level of damage. In total we investigated 240 trees. The first analysed method involves tree defoliation. The mean defoliation of sample accounts for 47.8%, while majority of the trees were found to be within 2nd damage class (fig. 1). Absolute and relative DBH increment does not correlate with tree defoliation strongly (tab.). The next method is based on the assessment of the average tree damage index W that takes into account defoliation, top condition and vitality. In general, analysed trees were found to have reduced height growth and both branching in the top (fig. 2) and central (fig. 3) section of the crown. Inclusion of the secondary crown in the assessment of tree damage resulted in an increase in the vitality of the whole crown (fig. 3). The assessment of damage based on index W showed that largest proportion of trees was within moderate damage and the value of the damage index was lower than in method based exclusively on defoliation. The last method (morphological−incremental) combines the method based on damage index W with DBH increment (index Wz, formula 3). In the period 1971−1985, most of the fir trees reacted negatively to the environment changes (growth reduction), while the proportion of trees with positive responses decreased. In the period 1976−2000, the proportion of trees with negative response decreased, while the proportion of firs with positive and neutral responses increased (fig. 5). The period 2001−2015 faced the dominance of trees showing neutral growth responses, the proportion of trees with positive responses was fairly high, while the proportion of trees with negative responses was the smallest. The highest value of the correlation coefficient (r=–0.661) was found for the correlation between the relative 10−years DBH growth and damage index Wz2(tab.). Of the three discussed damage assessment methods, this method is therefore considered the most accurate.
    Źródło:
    Sylwan; 2016, 160, 04; 299-308
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Reakcja przyrostowa brzozy brodawkowatej [Betula pendula Roth.] rosnacej na terenie Nadlesnictwa Olkusz
    Autorzy:
    Dmyterko, E.
    Bruchwald, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/824984.pdf
    Data publikacji:
    2000
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    witalnosc
    defoliacja
    brzoza brodawkowata
    syntetyczny wskaznik uszkodzenia
    uszkodzenia drzew
    Nadlesnictwo Olkusz
    wzrost roslin
    Betula pendula
    tereny zdegradowane
    lesnictwo
    drzewa lesne
    Źródło:
    Sylwan; 2000, 144, 06; 15-25
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Stopień uszkodzenia drzewostanów bukowych Ziemi Kłodzkiej
    Degree of damage to beech stands in the Klodzko Region
    Autorzy:
    Dmyterko, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/989030.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Ziemia Klodzka
    drzewostany bukowe
    uszkodzenia drzewostanow
    defoliacja
    witalnosc
    syntetyczny wskaznik uszkodzenia
    stopien uszkodzenia
    drzewa lesne
    buk zwyczajny
    Fagus sylvatica
    uszkodzenia drzew
    reakcje przyrostowe
    przyrost piersnicy
    fagus sylvatica
    damage to trees
    Opis:
    The study presents the assessment of damage to beech stands using four methods, including that taking into account the radial increment. The condition of stands in 2016, and the growth response of trees to the environmental changes since 1956 are described. The measurements and observations were carried out on 18 sample plots (tab. 1) located in south−western Poland. The mean defoliation accounts for 32.5% ranging from 16.9 to 56.9%, while the average defoliation class value is 1.62 ranging from 0.75 to 2.38. The proportion of trees was found to be the highest (approx. 60%) in class of moderate damage (fig. 1a). The mean value of vitality is 1.17 (ranging from 0.75 to 2.38). The proportion of trees in vitality classes differs significantly from that in defoliation classes. The highest number of trees (approx. 80%) was found to be within damage class of weakened trees (fig. 1b). The assessment of damage to trees based on synthetic damage index (defoliation and vitality combined using formula [1]) is similar to the assessment method based on tree vitality. The mean value is 1.07, ranging from 0.63 to 1.70. The largest proportion of trees (over 80%) was found to be within class 1 (fig. 1c). The index SynZ combines defoliation and vitality, as well as the growth response of trees over the last 15 years according to formula [2]. Its values range from 0.82 to 1.79 with 1.21 on average. The largest proportion of trees (over 70%) was found to be within damage class 1 (fig. 1d). The response of trees to environmental changes is an important indicator of the growth conditions. The proportion of trees with negative growth responses increases from period to period, while the proportion of trees with neutral and positive responses decreases (fig. 2). The analysed beech stands show fairly large differences in the level of the damage. The most likely cause of this situation are droughts occurring in recent growing seasons, especially in 2012. Of the methods deployed to assess damage to beech trees, the morphological−growth one is the most accurate, but the most laborious. Therefore, it is preferable to use a synthetic damage index as both tree defoliation and vitality can also be assessed outside the growing season.
    Źródło:
    Sylwan; 2017, 161, 05; 430-439
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analiza porównawcza stopnia uszkodzenia jesionu wyniosłego (Fraxinus excelsior L.) i olszy czarnej (Alnus glutinosa (L.) Gaertn.), rosnących w zmieszaniu lub bliskim sąsiedztwie
    Autorzy:
    Dmyterko, E.
    Tomusiak, R.
    Wojtan, R.
    Bruchwald, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1022270.pdf
    Data publikacji:
    2005
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    witalnosc
    defoliacja
    uszkodzenia drzew
    sasiedztwo roslin
    jesion wyniosly
    Fraxinus excelsior
    lesnictwo
    olsza czarna
    stopien zmieszania drzew
    zamieranie drzew
    Alnus glutinosa
    drzewa lesne
    tree dieback
    defoliation
    vitality
    synthetic damage indicator
    fraxinus excelsior
    alnus glutinosa
    Opis:
    The paper presents a comparative analysis of the degree of damage to common ash and black alder trees growing in mixture or a close neighbourhood. Three variants of the damage assessment method were applied in the analysis: defoliation−based variant I, vitality variant II and synthetic damage indicator−based variant III. It was demonstrated that on average ash stands were more damaged than alder stands. This allowed to put forward a hypothesis that there is an alternative to replace ash with black alder on some, especially wet habitats where the dieback process is largely advanced.
    Źródło:
    Sylwan; 2005, 149, 02; 3-11
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Kryteria określania uszkodzenia świerka
    Criteria for assessment of the damage to Norway spruce
    Autorzy:
    Dmyterko, E.
    Bruchwald, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1016245.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    defoliacja
    uszkodzenia drzew
    stan wierzcholka drzewa
    zywotnosc
    Picea abies
    lesnictwo
    kryteria oceny
    swierk pospolity
    drzewa lesne
    criteria for assessment of the damage to trees
    defoliation
    vitality
    top condition
    norway spruce
    Opis:
    The paper presents the criteria for assessment of the damage to Norway spruce determined on the basis of its crown development. Three features were included: condition of the assimilation apparatus (feature A), condition of the tree−top (feature B) and tree vitality (feature C). Feature A is based on the defoliation. Feature B assesses the length of the last height increments and their branching models. Feature C includes the loss of branches in the middle part of the crown, the presence of branches of 2nd and higher orders as well as condition of proventive sprouts (developed from dormant buds). Determined criteria may be applied in the methods of assessment of the damage to stands and larger forest objects e.g. management region, forest region, nature−forest regions.
    Źródło:
    Sylwan; 2007, 151, 06; 12-23
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Stan zdrowotny drzewostanów sosnowych (Pinus sylvestris L.) Nadleśnictwa Olkusz
    Autorzy:
    Dmyterko, E.
    Kluziński, L.
    Bruchwald, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1019688.pdf
    Data publikacji:
    2005
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    witalnosc
    defoliacja
    drzewostany sosnowe
    Nadlesnictwo Olkusz
    wskaznik uszkodzenia drzew
    metody badan
    stan zdrowotny lasu
    lesnictwo
    stands health condition
    assessment methods
    defoliation
    vitality
    index of tree damage
    scots pine
    (pinus sylvestris l.)
    Opis:
    Basing on tree crown characteristics different variants of the damage assessment method for pine stands were distinguished. The verification of the variants was carried out in 35 stands of the Olkusz Forest District that in the past had been under strong impact of industrial emissions. Prevalence of slightly dam− aged stands was observed in the studied area. Taking into consideration a high share of non−damaged stands it was stated that the actual health status of forests in the Olkusz Forest District's is satisfactory.
    Źródło:
    Sylwan; 2005, 149, 07; 3-13
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Stopień uszkodzenia świerka, jodły i modrzewia w Sudetach Zachodnich
    Degree of damage to spruce, fir and larch stands in the Western Sudetes
    Autorzy:
    Korzybski, D.
    Mionskowski, M.
    Dmyterko, E.
    Bruchwald, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/993196.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    lasy gorskie
    drzewostany swierkowe
    drzewostany jodlowe
    drzewostany modrzewiowe
    drzewa lesne
    swierk
    Picea
    jodla
    Abies
    modrzew
    Larix
    uszkodzenia drzew
    stopien uszkodzenia
    defoliacja
    stopien defoliacji
    zywotnosc
    stan wierzcholka drzewa
    Nadlesnictwo Kamienna Gora
    Nadlesnictwo Szklarska Poreba
    Nadlesnictwo Sniezka
    Nadlesnictwo Swieradow
    Sudety Zachodnie
    tree damage index
    defoliation
    tree growth response
    Opis:
    The aim of this research was to assess damage to three important forest−forming trees species in the mountains – spruce, fir and larch, and to study their increment reaction to changing environmental conditions. Research concerned forests under the management of four forest districts located in the Western Sudetes (SW Poland). Index W ranging from 0 to 3 was used for the assessment of the damage to trees based on three crown characteristics: defoliation, top−crown condition and tree vitality. Trees of damage degree 2 dominated in each of the species; dying trees (degree 3) were also found. Total share of these two degrees of damage was ca 80% for spruce, 84% for fir and 74% for larch. Analysis of increment reaction of investigated species showed their similar response to changes in the environment. The increase in the share of trees showing positive responses and the decrease in the share of negative responses in the past half century, indicate an improvement in the growth conditions of spruce, fir and larch in Western Sudetes.
    Źródło:
    Sylwan; 2013, 157, 02; 104-112
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-12 z 12

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