Results 21 to 30 of about 4,993 (217)

Eastern larch beetle (Dendroctonus simplex LeConte) as a potential threat to western (Larix occidentalis Nutt.) and subalpine larches (Larix lyalli Parl.)

Frontiers in Forests and Global Change
Eastern larch beetle Dendroctonus simplex LeConte has been outbreaking for the past two decades in the Great Lakes region of North America, impacting approximately 400,000 hectares of eastern larch Larix laricina (tamarack) forest in Minnesota, United ...
Rose M. Picklo, Erika Eidson, Brytten Steed, Brian H. Aukema   +3 more
doaj   +1 more source

Larch Cellulose Shows Significantly Depleted Hydrogen Isotope Values With Respect to Evergreen Conifers in Contrast to Oxygen and Carbon Isotopes

Frontiers in Earth Science, 2020
The analysis of the stable isotope of the tree-ring cellulose is an important tool for paleo climatic investigations. Long tree-ring chronologies consist predominantly of oaks and conifers in Europe, including larch trees (Larix decidua) and cembran ...
Tito Arosio, Tito Arosio, Malin Michelle Ziehmer-Wenz, Malin Michelle Ziehmer-Wenz, Kurt Nicolussi, Christian Schlüchter, Christian Schlüchter, Markus Leuenberger, Markus Leuenberger   +8 more
doaj   +1 more source

Holocene wildfire and vegetation dynamics in Central Yakutia, Siberia, reconstructed from lake-sediment proxies

Frontiers in Ecology and Evolution, 2022
Wildfires play an essential role in the ecology of boreal forests. In eastern Siberia, fire activity has been increasing in recent years, challenging the livelihoods of local communities.
Ramesh Glückler, Ramesh Glückler, Rongwei Geng, Rongwei Geng, Rongwei Geng, Lennart Grimm, Izabella Baisheva, Izabella Baisheva, Izabella Baisheva, Ulrike Herzschuh, Ulrike Herzschuh, Ulrike Herzschuh, Kathleen R. Stoof-Leichsenring, Stefan Kruse, Andrei Andreev, Luidmila Pestryakova, Elisabeth Dietze, Elisabeth Dietze, Elisabeth Dietze   +18 more
doaj   +1 more source

Traceability of Agri‐Food Products: The Key to Conscious Trade

Agribusiness, EarlyView.
ABSTRACT Globalization and growing concerns about sustainability have led to improvements in product traceability, quality, and sustainability. Traceability contributes to environmental protection and supports sustainable development by fostering transparency in agricultural practices and encouraging the responsible use of resources.
Scarlett Queen Almeida Bispo, Fernanda Aparecida Silva, Michelle Márcia Viana Martins, Marcelo José Braga Nonnenberg, Ruan da Silva Vianna, Carla Cristina Passos Cruz   +5 more
wiley   +1 more source

Larch and fir in planted forest stand of the Precarpathian and the Carpathians regions: silvicultural-biometric characteristics and growth peculiarities

Наукові праці Лісівничої академії наук України, 2018
In the western region of Ukraine, silver fir (Abies alba Mill.) is a common mainly in the Precarpathians and the Carpathians. Within the natural range it forms high-yielding, predominantly mixed stands.
Iurii Debryniuk
doaj   +1 more source

Do Politically Motivated Import Bans Leave Lasting Scars? Evidence From Australian–Chinese Beef Trade

Agribusiness, EarlyView.
ABSTRACT In May 2020, China abruptly suspended imports from several major Australian beef processors, escalating a diplomatic dispute between the two countries. This trade measure disrupted one of the largest beef export relationships in the world almost overnight.
K. Aleks Schaefer, Youngjune Kim
wiley   +1 more source

Structure of Forests and Climatic Response of Trees in “Forest-Steppe” Contact Zone, the Altai Mountains [PDF]

Журнал Сибирского федерального университета: Серия Биология, 2015
Age structure of forests and radial increment of conifers were studied in the “ forest–steppe” contact zone: Siberian stone pine–Siberian spruce–Siberian larch forest in the lower belt of Severo-Chuisky Range, Siberian larch–Siberian spruce–Siberian ...
Anatoly Yu. Bocharov, Dmitry А. Savchuk
doaj  

Digestion of wood-based hemicellulose extracts as screened by in vitro gas production method and verified in vivo using sheep

Agricultural and Food Science, 2016
The objective of the present study was to evaluate the potential of pressurized hot water extracted hemicellulose fractions from various wood species as feeds for ruminants.
Marketta Rinne, Outi Kautto, Kaisa Kuoppala, Seppo Ahvenjärvi, Veikko Kitunen, Hannu Ilvesniemi, Stefan Wilför, Riitta Sormunen-Cristian   +7 more
doaj   +1 more source

Analysis of oxidase activity and transcriptomic changes related to cutting propagation of hybrid larch

Scientific Reports, 2023
Hybrid larch is the main timber and afforestation tree species in Northeast China. To solve the problem of rooting difficulties in larch cutting propagation, enzyme activity determination and transcriptome sequencing were carried out on the rooting ...
Ruofan Qin, Qingrong Zhao, Chenrui Gu, Chen Wang, Lei Zhang, Hanguo Zhang   +5 more
doaj   +1 more source

H2O2 Activation and Alkane Oxidation by Copper Complexes With R‐dpa N3‐Tridentate Ligands: The Complex‐Based Dicopper Active Species as a Key Feature in the Efficient Alkane Oxidation

Chemistry – A European Journal, EarlyView.
Two reaction pathways, Paths 1 and 2, are involved in H2O2 activation by Cu complexes with N3‐tridentate ligands, depending on the ease of bridging structure formation. In Path 1, hydroxy radical (HO•) is formed from a hydroperoxo Cu(II) intermediate. In Path 2, a relevant complex‐based μ‐O• bridged Cu(II)2 active species is formed from a bis‐μ‐oxo Cu ...
Kyosuke Fujikawa, Momoe Kawahashi, Alexander Granichny, Siegfried Schindler, Hiroaki Kitagishi, Masahito Kodera   +5 more
wiley   +1 more source