Assessing the impacts of log extraction by typical small shovel logging system on soil physical and hydrological properties in the Republic of Korea.
Agricultural science
Agricultural soil science
Agriculture
Environmental science
Log carriers
Porosity
Saturated hydraulic conductivity
Small shovel loader
Soil bulk density
Soil health
Soil hydrology
Soil science
Journal
Heliyon
ISSN: 2405-8440
Titre abrégé: Heliyon
Pays: England
ID NLM: 101672560
Informations de publication
Date de publication:
Mar 2020
Mar 2020
Historique:
received:
26
07
2019
revised:
22
12
2019
accepted:
02
03
2020
entrez:
18
3
2020
pubmed:
18
3
2020
medline:
18
3
2020
Statut:
epublish
Résumé
Typical small shovel logging system, using manual felling and extraction by small crawler excavator with grapple and crawler carriers, is the predominant logging method in the Republic of Korea, due to the associated high productivity. The trails with ground pressure and one more passes of the shovel and carriers may lead to soil compaction. However, impacts of these bunching-extraction technologies on physical and hydrological properties of soils are not well known. The main objectives of this study were to: (1) determine the bulk density, porosity, and saturated hydraulic conductivity of soils in logging operation areas with three different disturbance types (i.e., undisturbed areas [UAs], bladed trails [BTs], and skid trails [STs]), and (2) compare soil compaction between these disturbance types. The most intense compaction occurred within BTs and STs, with increased bulk density and reduced porosity and hydraulic conductivity. Soil bulk density increased by 27-53% at all depths in BTs and STs compared to UAs, while porosity decreased by 23-49%. On average, saturated hydraulic conductivity at depths of 0-20 cm decreased from 337.5 mm h
Identifiants
pubmed: 32181405
doi: 10.1016/j.heliyon.2020.e03544
pii: S2405-8440(20)30389-3
pii: e03544
pmc: PMC7066223
doi:
Types de publication
Journal Article
Langues
eng
Pagination
e03544Informations de copyright
© 2020 The Authors.
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