Showing 561 - 580 results of 2,409 for search '"spruce"', query time: 0.10s Refine Results
  1. 561
  2. 562

    Changes in the nutrition and health status of young Norway spruce stands in the Krkonoše Mts. in a 17-year period by Radek NOVOTNÝ, Bohumír LOMSKÝ, Vít ŠRÁMEK

    Published 2017-08-01
    “…For 17 Norway spruce stands located in the Krkonoše Mts. in the Czech Republic a long-term assessment of defoliation, height increment, foliage concentration of nutrients (N, P, Ca, K, Mg) and stress elements (S, F) was carried out. …”
    Get full text
    Article
  3. 563

    Impact of Heat Treatment of Spruce Wood on Its Fire-Technical Characteristics Based on Density and the Side Exposed to Fire by Patrik Mitrenga, Miroslava Vandlíčková, Milan Konárik, Katarína Košútová

    Published 2022-06-01
    “…Five groups of specimens were used—untreated spruce wood specimens, two groups of heat-treated spruce wood specimens from the prism (higher density specimens), and two groups of heat-treated spruce wood specimens from the floor (lower density specimens). …”
    Get full text
    Article
  4. 564

    High methane emissions from restored Norway spruce swamps in southern Finland over one growing season by M. Koskinen, L. Maanavilja, M. Nieminen, K. Minkkinen, E-S. Tuittila

    Published 2016-02-01
    “…As a pilot study, CH4 emissions were measured on two pristine, two drained and three restored boreal spruce swamps in southern Finland for one growing season. …”
    Get full text
    Article
  5. 565

    Impact of Mixing on the Structural Diversity of Serbian Spruce and Macedonian Pine Endemic to Relict Forest Communities in the Balkan Peninsula by Aleksandar Popović, Damjan Pantić, Milan Medarević, Biljana Šljukić, Snežana Obradović

    Published 2021-08-01
    “…The research included two communities of species endemic to the Balkan Peninsula—the Serbian spruce (<i>Picea omorika</i> Pančić Purk.) and the Macedonian pine (<i>Pinus peuce</i> Griseb). …”
    Get full text
    Article
  6. 566

    Molecular Characteristics and Antioxidant Activity of Spruce (<i>Picea abies</i>) Hemicelluloses Isolated by Catalytic Oxidative Delignification by Valentina S. Borovkova, Yuriy N. Malyar, Irina G. Sudakova, Anna I. Chudina, Andrey M. Skripnikov, Olga Yu. Fetisova, Alexander S. Kazachenko, Angelina V. Miroshnikova, Dmitriy V. Zimonin, Vladislav A. Ionin, Anastasia A. Seliverstova, Ekaterina D. Samoylova, Noureddine Issaoui

    Published 2022-01-01
    “…Spruce (<i>Picea</i><i>abies</i>) wood hemicelluloses have been obtained by the noncatalytic and catalytic oxidative delignification in the acetic acid-water-hydrogen peroxide medium in a processing time of 3–4 h and temperatures of 90–100 °C. …”
    Get full text
    Article
  7. 567
  8. 568
  9. 569
  10. 570
  11. 571
  12. 572

    Challenges and risks of Serbian spruce (Picea omorika [pančić] purk.) in the time of climate change – a literature review by Vacek Zdeněk, Vacek Stanislav

    Published 2023-08-01
    “…Serbian spruce (Picea omorika [Pančić] Purk.) is a Balkan endemic coniferous species, the expansion of which is restricted by limited knowledge. …”
    Get full text
    Article
  13. 573

    Drivers of Spruce Bark Beetle (<i>Ips typographus</i>) Infestations on Downed Trees after Severe Windthrow by Branislav Hroššo, Pavel Mezei, Mária Potterf, Andrej Majdák, Miroslav Blaženec, Nataliya Korolyova, Rastislav Jakuš

    Published 2020-11-01
    “…Large-scale windthrows trigger population growth of the European spruce bark beetle (<i>Ips typographus</i> L.) from endemic to epidemic levels, thereby allowing the killing of Norway spruce trees over several consecutive years. …”
    Get full text
    Article
  14. 574

    Inter-Tracheid and Cross-Field Pitting in Compression Wood and Opposite Wood of Norway Spruce (Picea abies L.) by Asghar TARMIAN, Mohammad AZADFALLAH, Hadi GHOLAMIYAN, Mahdi SHAHVERDI

    Published 2011-05-01
    “…Inter-tracheid and cross-filed pit specifications in compression wood and opposite wood of Norway spruce (Picea abies) were determined. Fewer pits of a smaller size and a smaller aperture diameter were observed in compression wood. …”
    Get full text
    Article
  15. 575
  16. 576

    Gradients of the content of photosynthetic pigments and radiation as manifestations of the health condition of Norway spruce (Picea abies [L.] Karst.) by T. Zemánek, M. Martinková, D. Štěrbová

    Published 2004-10-01
    “…The paper deals with the health condition of sample trees of Norway spruce (Picea abies [L.] Karst.) on the basis of the distribution and quantity of chlorophyll a + b and carotenoids with respect to the gradient of radiation in the tree crown. …”
    Get full text
    Article
  17. 577
  18. 578

    Branch information extraction from Norway spruce using handheld laser scanning point clouds in Nordic forests by Olli Winberg, Jiri Pyörälä, Xiaowei Yu, Harri Kaartinen, Antero Kukko, Markus Holopainen, Johan Holmgren, Matti Lehtomäki, Juha Hyyppä

    Published 2023-08-01
    “…A total of 457 Norway spruce sample trees (Picea abies (L.) H. Karst.) from 13 spruce-dominated stands in southeastern Finland were used in the study. …”
    Get full text
    Article
  19. 579
  20. 580