Results 11 to 20 of about 1,230 (237)

The motion of trees in the wind: a data synthesis [PDF]

open access: yesBiogeosciences, 2021
Interactions between wind and trees control energy exchanges between the atmosphere and forest canopies. This energy exchange can lead to the widespread damage of trees, and wind is a key disturbance agent in many of the world's forests.
T. D. Jackson   +34 more
doaj   +1 more source

Positive effect of fir-rowan intimate mixture on new forest floor and topsoil following afforestation

open access: yesJournal of Forest Science, 2023
Litterfall of silver fir contributes to development of forest floor similarly like Norway spruce litterfall does. The nutrient return to soil can be intensified by mixing these conifers with other tree species whose effects on soil are positive; our ...
Dušan Kacálek   +2 more
doaj   +1 more source

Biomass Carbon and Nitrogen Content of Softwood Broadleaves in Southwestern Serbia

open access: yesHortScience, 2022
To select softwood broadleaves for biomass cropping, a study of the carbon and nitrogen content of the bark and wood of six softwood broadleaves in southwestern Serbia was conducted. Compared with white willow, european aspen, common alder, black poplar,
Sabahudin Hadrović   +6 more
doaj   +1 more source

Detection of Weeds Growing in Alfalfa Using Convolutional Neural Networks

open access: yesAgronomy, 2022
Alfalfa (Medicago sativa L.) is used as a high-nutrient feed for animals. Weeds are a significant challenge that affects alfalfa production. Although weeds are unevenly distributed, herbicides are broadcast-applied in alfalfa fields.
Jie Yang   +3 more
doaj   +1 more source

Co-occurrence patterns of tree-related microhabitats: A method to simplify routine monitoring

open access: yesEcological Indicators, 2021
A Tree-related Microhabitat (TreM) is a distinct, well-delineated morphological singularity occurring on living or standing dead trees, which constitutes a crucial substrate or life site for various species.
Laurent Larrieu   +13 more
doaj   +1 more source

The impact of agricultural land afforestation on soil water content in Central Bohemia

open access: yesJournal of Forest Science, 2021
In the Czech Republic, the afforestation of agricultural land has been supported by providing subsidies from the government and the European Union. Afforestation of less-productive agricultural land provides many benefits including carbon sequestration ...
Jan Vopravil   +4 more
doaj   +1 more source

Evaluating the Differences in Modeling Biophysical Attributes between Deciduous Broadleaved and Evergreen Conifer Forests Using Low-Density Small-Footprint LiDAR Data

open access: yesRemote Sensing, 2017
Airborne light detection and ranging (LiDAR) has been used for forest biomass estimation for the past three decades. The performance of estimation, in particular, has been of great interest.
Yoshio Awaya, Tomoaki Takahashi
doaj   +1 more source

Detection of standing retention trees in boreal forests with airborne laser scanning point clouds and multispectral imagery

open access: yesMethods in Ecology and Evolution, 2023
In a landscape consisting primarily of intensive forestry interspersed with some protected areas, multifunctional forestry with retention trees can play a crucial role in nature conservation.
Alwin A. Hardenbol   +3 more
doaj   +1 more source

Efficacy of Terbuthylazine and Isoxaflutel + Thiencarbazone in comparison with common herbicides on weed control in corn, Zea mays [PDF]

open access: yesپژوهش های کاربردی در گیاهپزشکی
Experiments were performed from 2021 to 2022 in Ardabil, Alborz, and Kermanshah province, Iran, to evaluate the efficiency of Terbuthylazine and Isoxaflutel + Thiencarbazone on controlling weeds in corn feilds. Examined herbicides included Terbuthylazine
نوشین نظام آبادی   +4 more
doaj   +1 more source

Spontaneous infiltration of broadleaved species into a spruce monoculture left without tending

open access: yesJournal of Forest Science, 2006
An experimental stand was established as a monoculture by planting Norway spruce on a clear-felled area in 1925. In 1958, a research thinning experiment was established there.
P. Jelínek, P. Kantor
doaj   +1 more source

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