Results 51 to 60 of about 14,189,131 (148)

Modelling individual tree diameter growth for Norway spruce in the Czech Republic using a generalized algebraic difference approach

open access: yesJournal of Forest Science, 2017
Individual tree-based growth models precisely describe the growth of individual trees irrespective of stand complexity. These models are more useful than the stand-based growth models for effective management of forests.
Ram P. SHARMA   +4 more
doaj   +1 more source

Dominant Height Model for Site Classification of Eucalyptus grandis Incorporating Climatic Variables

open access: yesInternational Journal of Forestry Research, 2013
This study tested the effects of inserting climatic variables in Eucalyptus grandis as covariables of a dominant height model, which for site index classification is usually related to age alone.
José Roberto Soares Scolforo   +5 more
doaj   +1 more source

Diameter growth and age of jaboticaba trees (Plinia peruviana (Poir.) Govaerts) native from Southwest of Paraná, Brazil, based on growth-rings [PDF]

open access: yesBrazilian Journal of Biology
The jaboticaba tree (Plinia peruviana (Poir.) Govaerts) is a native Brazilian species, and its fruits are very popular in Brazil. The purpose of this study was to model the diameter growth, and determine the age of jaboticaba trees in four natural ...
A. P. C. Moura   +4 more
doaj   +1 more source

A Systematic Review and Meta‐Analysis of Biological Sex Differences in Sleep Spindles and Slow Wave Activity in Adults With and Without Insomnia

open access: yesJournal of Sleep Research, Volume 35, Issue 5, October 2026.
ABSTRACT Mounting evidence shows sex‐based differences in sleep experiences and outcomes, including the prevalence of insomnia disorder. However, the impact of biological sex on brain oscillations during sleep remains poorly understood, especially in the context of insomnia disorder. This is a notable gap, given that neurophysiological aspects of sleep
Nyissa A. Walsh   +5 more
wiley   +1 more source

Non-linear height-diameter models for oriental beech (Fagus orientalis Lipsky) in the Hyrcanian forests, Iran

open access: yesBiotechnologie, Agronomie, Société et Environnement, 2013
The relationship between tree height and diameter is an important element in growth and yield models, in carbon budget and timber volume models, and in the description of stand dynamics. Six non-linear growth functions (i.e.
Ahmadi, K.   +3 more
doaj  

Impact of climate factors on height growth of Pinus sylvestris var. mongolica.

open access: yesPLoS ONE, 2019
Tree height growth is sensitive to climate change; therefore, incorporating climate factors into tree height prediction models can improve our understanding of this relationship and provide a scientific basis for plantation management under climate ...
Yanping Zhou   +5 more
doaj   +1 more source

Forage harvest intensification improves feed nutritive value without reducing grain yields in organic Kernza

open access: yesAgronomy Journal, Volume 118, Issue 5, September/October 2026.
Abstract Managing Kernza [Thinopyrum intermedium (Host) Barkworth & Dewey] as a dual‐use crop for grain and forage has potential to improve economic viability, particularly in organic systems where premiums and diversified outputs can enhance profitability.
Aline de Camargo Santos   +15 more
wiley   +1 more source

How to utilize natural regeneration of birch to establish mixed spruce-birch forests in Finland?

open access: yesSilva Fennica
Mixed forests are known for their ability to provide a wide range of ecosystem services. Such forests have higher biodiversity compared to monocultures, are resilient against disturbances and may mitigate the effects of climate change. Despite well-known
Lauri Männistö   +2 more
doaj   +1 more source

Speciation with gene flow

open access: yesPLANTS, PEOPLE, PLANET, Volume 8, Issue 5, Page 1476-1499, September 2026.
Biodiversity is threatened by human activities, with extinction debt accumulating rapidly. Many of these activities change the connectivity of populations, fragmenting existing population systems or bringing previously isolated populations or species into contact.
Zhiqin Long   +7 more
wiley   +1 more source

Don Richards, 1984 Don Perkins Hall of Fame inductee

open access: yes, 1984
Don Richards, 1984 Don Perkins Hall of Fame inductee [1969, baseball], Chapman College, Orange, California.https://digitalcommons.chapman.edu/cu_athletics/1264/thumbnail ...

core   +1 more source

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