Results 21 to 30 of about 216 (127)
Forest Systems, 2020 Aim of the study: Quantify potential economic benefits of implementing computer-generated skid-trail networks over the traditional operator-designed skid-trail networks on steep terrain ground-based forest operations.
Marco Antonio Contreras +2 more
doaj +1 more source
Effects of tree-length timber skidding on soil compaction in the skid trail in Hyrcanian forests
Forest Systems, 2014 Aim of study: The study was conducted to examine impact of skidding traffic, trail slope, traffic frequency, and soil depth on the soil bulk density.Area of study: This study was carried out in the Kheyrud Forest in Hyrcanian forest, Iran.Material and methods: The level of soil compaction at eight levels of traffic (1, 4, 8, 10, 15, 20, 25, and 30 ...
Jourgholami, Meghdad +2 more
openaire +5 more sources
Evaluating the Effectiveness of Mulching for Reducing Soil Erosion in Skid Trail Switchbacks
Croatian Journal of Forest Engineering : Journal for Theory and Application of Forestry Engineering, 2022 Forest operations can lead to increased runoff and soil loss on roads and skid trails. The aim of this study was to evaluate the effectiveness of two erosion control treatments applied to different segments of skid trails following six natural rainfall events.
Solgi, Ahmad +5 more
openaire +1 more source
Acta Silvae et Ligni, 2021 Generally applicable and professionally applied criteria for acceptable soil damage after forest operations are a prerequisite for efficient forest soil protection and objective control of the quality of forest operations.
Anton Poje +3 more
doaj +1 more source
Assessment of ground-based skidding impacts on the horizontally rate and extent of soil disturbance along the margin of the skid trail [PDF]
Annals of Forest Science, 2016 Abstract Key messageSkidding operations significantly influenced soil physical properties up to a 2-m distance from the wheel ruts in a forest ecosystem. The most significant changes in soil properties were identified within a 0.5 m to 1 m transitional zone. AimsThe main purpose of this investigation was to determine how far into a forest stand changes
Ahmad Solgi +3 more
openaire +1 more source
Soil conservation in a forested mountain catchment
EQA, 2018 In 1982 – 2015, environmental impacts of commercial forestry practices were studied in the Jizerka experimental catchment (the Jizera Mountains, Czech Republic).
Josef Krecek +3 more
doaj +1 more source
Sliding Mode Control in Aerospace Applications: A Survey
International Journal of Robust and Nonlinear Control, EarlyView.ABSTRACT Sliding mode control (SMC) enjoys robustness to matched and unmatched (in the case of minimum phase input‐output dynamics) bounded perturbations, and finite time convergence. Second‐order and higher‐order sliding mode control systems (2‐SMC/HOSMC) retain all the advantages of sliding mode control, but in addition can be applied to systems of ...
Yuri Shtessel, Christopher Edwards
wiley +1 more source
Remote Sensing in Ecology and Conservation, EarlyView.This study demonstrates that not just Airborne Laser Scanning, but also Sentinel‐2 can effectively estimate absolute canopy cover and canopy cover heterogeneity ‐ structural metrics that determine the subcanopy light regime, found to be linked to the vascular plant species richness in the understory of temperate mountain forests.
Felix Wieland‐Glasmann +4 more
wiley +1 more source
Effect of the skid trail cross section and horizontal alignment on forest soil physical properties
Journal of Forest Science, 2017 Horizontal alignment and cross section characteristics of a skid trail in a ground-based skidding system including curves, wheel ruts and cross slope can impact on the forest soil.
Hossein YAZARLOU +3 more
doaj +1 more source
A Family Affair: War, Agency and Female Epistolary Networks in Renaissance Italy
Gender &History, EarlyView.ABSTRACT This article draws on the largely unexplored epistolary archive of dozens of women who were born or married into military families in northern Italy around the time of the first phase of the Italian Wars (1494–1530). Building on recent work on early modern agency, patriarchy, networks and emotional communities, the article reconstructs and ...
Stephen Bowd
wiley +1 more source