Results 101 to 110 of about 22,802 (254)

Two new methods applied to crown width additive models: a case study for three tree species in Northeastern China

open access: yesAnnals of Forest Science, 2023
Key message The non-linear seemingly unrelated regression mixed-effects model (NSURMEM) and generalized additive model (GAM) were applied for the first time in crown width (CW) additive models of larch (Larix gmelinii Rupr.), birch (Betula platyphylla ...
Junjie Wang   +5 more
doaj   +1 more source

Late Holocene climate and environmental changes in Kamchatka inferred from subfossil chironomid record. [PDF]

open access: yes, 2013
This study presents a reconstruction of the Late Holocene climate in Kamchatka based on chironomid remains from a 332 cm long composite sediment core recovered from Dvuyurtochnoe Lake (Two-Yurts Lake, TYL) in central Kamchatka.
de Hoog, Verena   +4 more
core   +1 more source

Delayed Self‐Pollination as the Primary Reproductive Strategy in Cypripedium shanxiense S. C. Chen: Observations From Beijing Songshan National Nature Reserve

open access: yesPlant-Environment Interactions, Volume 6, Issue 4, August 2025.
ABSTRACT Studying the pollination biological characteristics of the rare and endangered plant Cypripedium shanxiense S. C. Chen will provide a scientific basis for formulating conservation strategies for the species. This study investigates the flowering phenology, pollination insects, and the process of pollination and fruiting of C. shanxiense at the
Qun Wang   +5 more
wiley   +1 more source

ERF.D2 negatively controls drought tolerance through synergistic regulation of abscisic acid and jasmonic acid in tomato

open access: yesPlant Biotechnology Journal, Volume 23, Issue 8, Page 3363-3381, August 2025.
Summary Plants inevitably encounter a diverse array of constantly changing environmental stresses, and drought stands out as one of the most severe threats to plants. Abscisic acid (ABA) and jasmonic acid (JA) work synergistically to increase plant drought tolerance, but their interplay during drought response remains elusive.
Changan Zhu   +9 more
wiley   +1 more source

Increase of Tree Species Mingling enhances the resistance of Pinus armandii forests to Dendroctonus armandi infestation

open access: yesForestry Research
Pinus armandii Franch., a key native conifer in China, faces severe Dendroctonus armandi infestation, threatening forest ecosystems. Reducing infestation probability and enhancing resistance are essential for transforming Pinus armandii forests.
Zhaolong Li   +4 more
doaj   +1 more source

Надземная фитомасса деревьев лиственницы и березы в лесах Центральной Сибири и Восточного Хэнтэя [PDF]

open access: yes, 2015
Приведены фактические данные о надземной фитомассе стволов, ветвей и хвои лиственницы Гмелина в количестве 10 деревьев, полученные в лесах Южной Эвенкии, а также данные 43 деревьев лиственницы сибирской и 12 деревьев берёзы плосколистной, полученные в ...
Данилин, И. М.   +2 more
core  

Impacts of climatic niche breadth, phylogeny, traits and ploidy on geographical ranges of Betula species

open access: yesJournal of Systematics and Evolution, Volume 63, Issue 4, Page 939-951, July 2025.
Geographical range size is a fundamental ecological characteristic of a species. We quantified the effects of phylogeny, climatic niche breadth, morphological traits and ploidy on range size variation of Betula species. Climatic niche breadth has the strongest effect on the range size variation of Betula species.
Feifei Yan   +5 more
wiley   +1 more source

Forecast of potential suitable areas for forest resources in Inner Mongolia under the Shared Socioeconomic Pathway 245 scenario

open access: yesEcological Indicators
The identification and prediction of potential suitable areas for forest resources in Inner Mongolia based on the maximum entropy (MaxEnt) model are of great significance for the protection and utilization of forest resources and the promotion of ...
Linfu Liu   +6 more
doaj   +1 more source

Atmospheric N Deposition as a Key Driver of Soil Nitrate Production and Accumulation in Temperate Forests Under Semi‐Arid Climate

open access: yesGeophysical Research Letters, Volume 52, Issue 12, 28 June 2025.
Abstract Atmospheric nitrogen (N) deposition affects soil nitrate (NO3– ${{\text{NO}}_{3}}^{\mbox{--}}$) dynamics in forests, yet mechanisms driving NO3– ${{\text{NO}}_{3}}^{\mbox{--}}$ accumulation in semi‐arid regions remain unclear. Here, we quantified atmospheric and microbial contributions to soil NO3– ${{\text{NO}}_{3}}^{\mbox{--}}$ by analyzing ...
Zhong‐Cong Sun   +5 more
wiley   +1 more source

Studies on the Bryophytes of Southern Manitoba. IV. Collections from Bird's Hill Provincial Park [PDF]

open access: yes, 1973
One hundred and seventeen taxa of bryophytes were collected in Bird's Hill Provincial Park, Manitoba. Habitats sampled included ditches, streams, marshes, moist clay banks, dry grassland, and areas forested by black spruce, tamarack, white cedar, white ...
Stringer, Muriel H. L. Stringer   +1 more
core  

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