How and How Much, Do Harvesting Activities Affect Forest Soil, Regeneration and Stands?

Picchio, Rodolfo; Mederski, Piotr S.; Tavankar, Farzam

doi:10.1007/s40725-020-00113-8

Cited by 109 publications

(84 citation statements)

References 68 publications

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“…It can be quantified as a ratio of the number of damaged trees to the total number of trees that remained in the stand after felling. This indicator is used to compare damage between individual stands and harvesting technologies applied in forest operations [28].…”

Section: Assessment Of Stand Damagementioning

confidence: 99%

Machinery-Induced Damage to Soil and Remaining Forest Stands—Case Study from Slovakia

Dudáková

Allman

Merganič

et al. 2020

Forests

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The paper deals with the damage of the remaining stand and soil caused by harvesting using three ground-based forest operations methods (harvester-forwarder/cable skidder/animal-tractor). It compares the impact of the most common harvesting technologies applied in Slovakia and in Central Europe and thus contributes with valuable information to the knowledge on the suitability of their application in forests stands dominated by broadleaved tree species. Harvesting was performed in five forest stands located at the University Forest Enterprise of Technical University in Zvolen in central Slovakia from August to October 2019. Damage to remaining trees was assessed from the point of its size, type, and position of damage along stem. We expected lower damage of remaining trees in stands where harvesters were used because of the applied cut-to-length short wood system and fully mechanized harvesting system. In addition, we examined soil bulk density and soil moisture content in ruts, space between ruts, and in undisturbed stand to reveal the impact of harvesting machinery on soil. We expected greater soil bulk densities and lower soil moisture content in these stands due to the greatest weight of harvesters and in ruts created by machinery compared with undisturbed stand soil. The highest percentage of damaged remaining trees equal to 20.47% and 23.36% was recorded for harvester forest operations, followed by skidder (19.44%) and animal forest operations with 19.86% and 14.47%. Factorial ANOVA confirmed significant higher soil compaction in stands where harvesters were used (higer bulk density) than in stands where skidding was performed with the skidder and animal power. Higher soil moisture content was recorded in ruts created by harvesters and the skidder. The lowest soil moisture content was in undisturbed stands irrespective of the applied forest operation method.

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Section: Assessment Of Stand Damagementioning

confidence: 99%

Machinery-Induced Damage to Soil and Remaining Forest Stands—Case Study from Slovakia

Dudáková

Allman

Merganič

et al. 2020

Forests

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“…In the processing of the data of the variations of the physical-mechanical characteristics of the soil, it was perceptible that in general the forest operations and in particular bunching and extraction carried out both with mechanical means and with animals affect the forest soil causing evident impact [34][35][36].…”

Section: Forest Operationsmentioning

confidence: 99%

Disturbances to the Ground and to the Stand in Beech Forests Due to Thinning Treatments Performed by Different Levels of Mechanization

Venanzi

Barbona

Latterini

et al. 2020

The 1st International Electronic Conference on Forests—Forests for a Better Future: Sustainability, Innovation, Inter

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The aim of this work was to assess the possible impacts on the forest soil and stand due to silvicultural treatment and forest operations in a beech high forest. Even aged beech forests (Fagus sylvatica L.) in the Municipality of Cappadocia (L’Aquila) and in the Municipality of Vallepietra (Roma) were analyzed. The analysis of the soil and stand were performed in order to assess the effects attributable to applied silviculture and forest logging. Two different logging methodologies (in particular for the extraction) were applied: mules were used in the areas with greater slopes and with obstacles, while for the areas with better accessibility, mechanical means were used, in this case tractors. In detail, the main objective was to assess the disturbance on the ground and on the stand, generated by the two different levels of mechanization. In addition, it was also interesting to understand the possible effect on the soil and specifically on the partial uncovering where part of the tree canopy was removed. Only through an accurate cross-analysis of the studied parameters and indices could the anthropogenic impacts on the soil and stand due to forest operations be highlighted according to the different logging methodologies applied. The main results showed that the disturbances caused to the soil and stand were essentially caused in the bunching and extraction operations. The importance of avoiding or limiting the continuous passage of vehicles and animals on forest soil clearly emerges, especially in conditions of high soil moisture. It is also important to use correct technologies that are adequate for the specific environmental characteristics and the work plan. Finally, it can be said that there was no difference in the disturbance caused by the two logging methods when compared. Substantial differences in terms of improvement can be defined when comparing the findings of this study with other research studies. This can be done by applying a different type of mechanization with a different logging system.

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“…Notwithstanding the reduced impacts of the selective logging approach, it also associated with disturbance and damage to the residual forests, with implications on soils, biodiversity, and other ecological processes (Asner et al, 2009;Picchio et al, 2020). The extent of these impacts depends on factors such as logging intensity, site differences due to soil, topography and biota (Bahati, 2005;Sist, 2000).…”

Section: Introductionmentioning

confidence: 99%

Logging effects on seedling regeneration and diversity in a tropical moist semi-deciduous forest in Ghana

Damptey

Adofo

Duah-Gyamfi

et al. 2021

Geology, Ecology, and Landscapes

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The effect of time lag after logging on seedling dynamics was assessed in logged and unlogged forest plots located in the Pra-Anum Forest Reserve. Remnant tree attributes were sampled in six plots with sizes of 25 × 25 m in each forest type. Within each forest type, ten subplots with sizes 1 × 1 m were established for sampling seedling regeneration dynamics. Enumerated seedlings were grouped as pioneer, non-pioneer light demander, and shade-tolerant species. Regenerating seedlings were more diverse in the recently logged forest area characterised by Broussonetia papyrifera and Musanga cecropioides, and least in the unlogged forest driven predominantly by Celtis mildbraedii and Baphia nitida. Pioneer species were primarily dominant in the recently logged forest, while shade-tolerant and non-pioneer light-demanding species characterised the logged-over forest. Species richness and canopy openness of remnant stands explained 32 percent of the variations in regeneration richness between the logged and unlogged areas. Twenty-seven percent of the variations in seedling abundance was also explained by remnant trees richness, their size diameter and the degree to which their canopy has been opened. Logging-induced disturbance favours the sporadic emergence of pioneer species in recently disturbed areas which are later replaced by non-pioneer light-demanding or shade-tolerant species as light becomes limiting in the understory.

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How and How Much, Do Harvesting Activities Affect Forest Soil, Regeneration and Stands?

Cited by 109 publications

References 68 publications

Machinery-Induced Damage to Soil and Remaining Forest Stands—Case Study from Slovakia

Machinery-Induced Damage to Soil and Remaining Forest Stands—Case Study from Slovakia

Disturbances to the Ground and to the Stand in Beech Forests Due to Thinning Treatments Performed by Different Levels of Mechanization

Logging effects on seedling regeneration and diversity in a tropical moist semi-deciduous forest in Ghana

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