Results 21 to 30 of about 1,230 (237)

Towards a global sentinel plants research strategy to prevent new introductions of non-native pests and pathogens in forests. The experience of HOMED [PDF]

open access: yesResearch Ideas and Outcomes, 2023
The use of sentinel woody plants in experimental plantings, Botanical Gardens and Arboreta has been experimentally validated as a tool for identifying possible unknown future threats prior to their introduction into new countries. Sentinel Plantings were
Duccio Migliorini   +14 more
doaj   +3 more sources

Cleaning methods in planted Scots pine stands in southern Finland: 4-year results on survival, growth and whipping damage of pines

open access: yesSilva Fennica, 2007
The effects of four cleaning treatments on the survival, growth of, and whipping damage to Scots pine (Pinus sylvestris L.) main stems were studied in young planted pine stands in southern Finland.
Saksa, Timo, Miina, Jari
doaj   +1 more source

Long-term silvicultural experiment with transformation of the mixed stand structure

open access: yesJournal of Forest Science, 2011
The paper summarizes the main characteristics of a mixed stand during 80-year transformation to the mixed stand with permanent selective structure. The initial main stand was mostly composed of conifers with group arrangement, broadleaves as the reserved
L. Šimerda, J. Souček
doaj   +1 more source

The use of dual-wavelength airborne laser scanning for estimating tree species composition and species-specific stem volumes in a boreal forest

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2023
The estimation of species composition and species-specific stem volumes are critical components of many forest inventories. The use of airborne laser scanning with multiple spectral channels may prove instrumental for the cost-efficient retrieval of ...
Christoffer R. Axelsson   +3 more
doaj   +1 more source

Effect of Different Foliar Herbicides on Weed Control, Yield and Its Component of Simeto (Triticum durum L.)

open access: yesZanco Journal of Pure and Applied Sciences, 2019
A field experiment was conducted at the Technical Institute Research Station of Khabat to study the efficiency of three herbicides on the control of weeds in Triticum durum L. (Simeto variety).
Dara M.A Jaff, Ismail A. Said
doaj   +1 more source

Influence of the mineral rock alginite on survival rate and re-growth of selected tree species on agricultural land

open access: yesJournal of Forest Science, 2015
The objective of this work is to evaluate the effect of alginite on the growth parameters of seedlings of Douglas-fir, Scots pine and line mixture of pedunculate oak, red oak and Norway maple (broadleaves) on former agricultural land with an unfavourable
M. Tužinský   +3 more
doaj   +1 more source

Leaf-Level Spectral Fluorescence Measurements: Comparing Methodologies for Broadleaves and Needles

open access: yesRemote Sensing, 2019
Successful measurements of chlorophyll fluorescence (ChlF) spectral properties (typically in the wavelength range of 650–850 nm) across plant species, environmental conditions, and stress levels are a first step towards establishing a quantitative ...
Paulina A. Rajewicz   +3 more
doaj   +1 more source

Restoration of degraded forest using native and exotic species: Investigation on soil productivity and stand quality (Case study: Chamestan-Mazandaran province) [PDF]

open access: yesتحقیقات جنگل و صنوبر ایران, 2017
After 20 years, the effects of five plantations of Acer velutinum Boiss., Cryptomaria japonica D. Don., Cupressus sempervirens L. var. horizontalis (Mill.) Gord., Pinus taeda L.and mixed stand on soil fertility and quality of the stands were investigated
Razieh Rafiei Jahed   +5 more
doaj   +1 more source

Proper Use and Handling of Glyphosate in Plant Nurseries

open access: yesEDIS, 2018
Glyphosate is the most used herbicide in the nursery industry in the United States. Used for postemergent control of vegetation, it controls annual and perennial grasses, broadleaves, and sedges.
Shawn T. Steed   +2 more
doaj   +5 more sources

From Paris to Switzerland: Four Pathways to a Forest Reference Level

open access: yesFrontiers in Forests and Global Change, 2021
Introduction: Among terrestrial ecosystems, forests represent large carbon stocks threatened by changing climatic conditions, deforestation, overexploitation, and forest degradation.
Golo Stadelmann   +4 more
doaj   +1 more source

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