Results 21 to 30 of about 78,165 (330)

INVESTIGATION ON DELIGNIFICATION AND PULPING OF SPRUCE (PICEA ABIES) [PDF]

open access: yesتحقیقات علوم چوب و کاغذ ایران, 2003
Two 22 years old spruce trees (Picea abies) from Picesoon region of Gilan province are investigated. These samples were transferred to the Alborz research center. The physical, anatomical and chemical properties of samples were determined.
Abbas Fakhryan roghani   +3 more
doaj   +1 more source

Differential photosynthetic adaptation between size-classes of Spruce and Fir juveniles help to explain the co-existence of the two species. [PDF]

open access: yes, 2010
Background/Question/Methods _Abies sachalinensis_ (Sakhalin Fir) and _Picea glehnii_ (Glehn’s Spruce) are major components of the sub-boreal forests of Hokkaido, Japan.
Akihiro Sumida   +3 more
core   +2 more sources

Quality of pollen of norway spruce (Picea abies (L.) Karst.) and blue spruce (Picea pungens Engelm.) under conditions of introduction on the South-East of Ukraine

open access: yesІнтродукція Рослин, 2010
The results of long term investigations of the quality of pollen of Picea abies (L.) Karst. and Picea pungens Engelm. under conditions of introduction on the South-East of Ukraine have been presented.
I.V. Makogon, I.I. Korshikov
doaj   +1 more source

A Late Würmian and Holocene pollen profile from Tüttensee, Upper Bavaria, as evidence of 15 Millennia of landscape history in the Chiemsee glacier region

open access: yesActa 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

Ecology of the Cerambycidae (Coleoptera) of the Huron Mountains in Northern Michigan [PDF]

open access: yes, 2017
Eighty-nine species of Cerambycidae were collected during a five-year survey of the woodboring beetle fauna of the Huron Mountains in Marquette County, Michigan. Host plants were determined for 51 species.
Gosling, D. C. L
core   +2 more sources

Forest structure, stand composition, and climate-growth response in montane forests of Jiuzhaigou National Nature Reserve, China. [PDF]

open access: yes, 2013
Montane forests of western China provide an opportunity to establish baseline studies for climate change. The region is being impacted by climate change, air pollution, and significant human impacts from tourism.
Dolanc, Christopher R   +6 more
core   +2 more sources

Corrigendum to “Pollen-based paleoenvironmental and paleoclimatic change at Lake Ohrid (south-eastern Europe) during the past 500 ka” published in Biogeosciences, 13, 1423–1437, 2016 [PDF]

open access: yes, 2018
In this corrigendum we report an updated pollen record from the Lake Ohrid DEEP site spanning the past 500 ka whereby we have reprocessed and re-analyzed 104 samples affected by chemical procedure problems that occurred in one palynological laboratory ...
Bertini, A.   +16 more
core   +1 more source

Attractiveness of Picea pungens to the bark beetle species Ips amitinus (Eichh.) and Pityogenes chalcographus (L.)

open access: yesJournal 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

Relationships between tree and soil properties in Picea abies and Pinus sylvestris forests in Sweden [PDF]

open access: yes, 2010
The exchange of elements between plants and the soil in which they are growing creates reciprocal control of their element composition. Within plants, the growth rate hypothesis from ecological stoichiometry implies a strong coupling between C, N, and P.
Ladanai, Svetlana   +2 more
core   +1 more source

Tree defence and bark beetles in a drying world: carbon partitioning, functioning and modelling. [PDF]

open access: yes, 2020
Drought has promoted large-scale, insect-induced tree mortality in recent years, with severe consequences for ecosystem function, atmospheric processes, sustainable resources and global biogeochemical cycles.
Almuth Hammerbacher   +15 more
core   +1 more source

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