Results 21 to 30 of about 10,355 (252)
Acta Palaeobotanica, 2021 A late Würmian and Holocene pollen profile from Tüttensee near Chiemsee, Bavaria, covering 14 millennia of vegetation history, shows the late Würmian reforestation of the area, Holocene woodland development, and later the human impact on the landscape ...
Manfred Rösch +4 more
doaj +1 more source
Umbelliferone in Needles of Picea abies *
Zeitschrift für Naturforschung C, 1980 Abstract A compound showing blue fluorescence under UV-light was isolated from spruce needles and identified as umbelliferone. Structure analysis was based on UV and mass spectroscopy as well as chromatographic comparison with authentic material. Quantitative evaluation by direct measurement of the fluorescence of the umbelliferone spot
Hermann Esterbauer +2 more
openaire +1 more source
Journal of Forest Science, 2013 Only two cambioxylophagous species (Ips amitinus and Pityogenes chalcographus) were found on sections of Picea pungens and Picea abies that belong to economically important pests of Norway spruce. Representatives of the Isarthron sp.
E. Kula, R. Kajfosz, J. Polívka
doaj +1 more source
Shuitu baochi yanjiu, 2020 In order to find out the pattern of forest vegetation and water conservation capacity change after logging of Picea and Abies, taking the original Abies forests in northwestern Yunnan Province as a control, the water conservation capacities of the ...
HE Liping +5 more
doaj
Recovery of Abies alba and Picea abies saplings to browsing and frost damage depends on seed source
Ecology and Evolution, 2019 The density of wild ungulates has increased in the last century, and browsing has become a major driver of forest succession in the northern hemisphere.
Andrea Doris Kupferschmid +1 more
doaj +1 more source
Bulletin of popular information - Arnold Arboretum, Harvard University., 1916 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +2 more sources
Acta Societatis Botanicorum Poloniae, 2014 The megametophytes of Picea abies, Pinus sylvestris, Pinus mugo and Larix decidua were cultured on modified solid agar MS medium with 5 mg.l-1 α-naphthaleneacetic acid and 0.1 mg.l-1 6-benzylaminopurine and exposed to a tester, the basidio-mycete ...
J. Hřib, B. Vooková
doaj +1 more source
THE EFFECT OF SIT CONDITION ON SOME MECHANICAL PROPERTIES OF PICEA ABIES WOOD IN TWO REGIONS [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2006 In this study, in order to achieve sufficient accuracy both quality and quantity factors in two forestry plantanation of Picea abies using 100% statistics were used. In order to investigate wood quality, fiber length, density and mechanical properties, 4
Zoghali Syahipoor, Fardad Golbabaei
doaj +1 more source
, 2018 Published as part of Konrad Lauber, Gerhart Wagner & Andreas Gygax, 2018, Flora Helvetica - Pinaceae, pp.
Konrad Lauber +2 more
openaire +2 more sources
Ekológia (Bratislava), 2021 By logging in the past, humans can determine current tree population structures, but fast stump decomposition makes difficult to falsify that for Amazonian Rainforests.
Garrido-Perez Edgardo I. +6 more
doaj +1 more source