Results 21 to 30 of about 214,388 (315)

Wood density variation in Serbian Spruce: A comparative study of natural stands and plantations

open access: yesGlasnik Šumarskog Fakulteta Univerziteta u Banjoj Luci
Serbian spruce (Picea omorika Pančić/Purkyně) is a Tertiary relict and an endemic species of the Balkan Peninsula, whose limited distribution range and pronounced ecological specificity make the study of its physical properties particularly important ...
Danijela Petrović   +4 more
doaj   +1 more source

An integral model for natural regeneration of Pinus pinea L. in the Northern Plateau (Spain) = Modelo integral de regeneración natural para Pinus pinea L. en la Meseta Norte (España)

open access: yes, 2013
Natural regeneration is an ecological key-process that makes plant persistence possible and, consequently, it constitutes an essential element of sustainable forest management.
Manso González, Rubén
core   +1 more source

Structural heterogeneity modulates the effects of stem density on standing biomass in mature dry Isoberlinia woodlands

open access: yesFrontiers in Forests and Global Change
IntroductionWhile the impacts of forest structural attributes on above-ground biomass (AGB) has been largely documented in closed-canopy forests, much less is known in dry forests, where water rather than light drives biomass accumulation. In particular,
Hidirou Orou   +5 more
doaj   +1 more source

Dynamics of health status of forest stands on research plots in the Šumava National Park

open access: yesJournal of Forest Science, 2003
The paper summarises an evaluation of the health status dynamics of allochthonous spruce stands in the Modrava Forest District and of natural stands in the Plešný Forest District.
S. Vacek   +3 more
doaj   +1 more source

Forest site conditions and other features of Scots pine stands favorable for bark beetles

open access: yesНаукові праці Лісівничої академії наук України, 2018
The aim of research was to evaluate the dependence of bark beetles foci distribution on forest site conditions as well as on Scots pine stands origin and other characteristics.
Valentyna L. Meshkova   +2 more
doaj   +1 more source

Analysis of monoterpene variation in natural stands and plustrees of Pinus sylvestris in Finland.

open access: yesSilva Fennica, 1986
Variation of monoterpene composition of L. was studied in Southern, Central and Northern Finland using data from both natural stands and plus trees. The natural stands were analysed using different techniques and for fewer terpenes than the plus trees ...
Muona, Outi   +3 more
doaj   +1 more source

Prognosis of Long‐Term Continuous Renal Replacement Therapy and the Impact of Combined Continuous Intravenous Sodium Infusion Therapy

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Patients requiring long‐term continuous renal replacement therapy (CRRT) generally have poor prognoses. This study evaluated whether adding continuous intravenous sodium infusion (cIVNa) is associated with improved hemodynamics and outcomes in patients undergoing long‐term CRRT for ≥ 7 days.
Akinori Yamaguchi   +6 more
wiley   +1 more source

Silvicultural regimes and early biomass thinning in young, dense pine stands [PDF]

open access: yes, 2013
The aim of this work was to determine how early management activities in young, dense pine forests affect tree and stand characteristics and profitability and to assess the future potential for tree biomass harvesting and use.
Karlsson, Lars
core  

Comparative productivity of artificial and natural forest stands in the belt pine forests of Altay [PDF]

open access: yes, 2021
Using the indicator of the initial density G:H, tables of the growth course of natural and artificial self-tinning pine stands growing in conditions such as dry pine forest of gentle hills type were compiled.
Osipenko, A. E., Zalesov, S. V.
core  

Dynamics of the health status of forest stands and its prediction on research plots in the Šumava Mts.

open access: yesJournal of Forest Science, 2006
The paper summarises the evaluation of the health status dynamics of allochthonous spruce stands in the Modrava Forest District and of natural stands in the Plešný Forest District.
S. Vacek, V. Podrázský, K. Matějka
doaj   +1 more source

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