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Impact of thinning and contour-felled logs on overland flow, soil erosion, and litter erosion in a monoculture Japanese cypress forest plantation

This study investigated the impact of thinning and felled logs (random- and contour-felled logs) on overland flow, soil erosion, and litter erosion in a Japanese cypress forest plantation (2400 tree ha−1) with low ground cover, from 2018 to 2023 in central Japan. Monthly measurements of overland flo...

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Main Authors: Moein Farahnak, Takanori Sato, Nobuaki Tanaka, Anand Nainar, Ibtisam Mohd Ghaus, Koichiro Kuraji
Format: Article
Language:English
English
Published: MDPI Multidisciplinary Digital Publishing Institute 2024
Subjects:
SD1-669.5 Forestry
SD390-390.43 Forest soils
Online Access:https://eprints.ums.edu.my/id/eprint/42194/1/ABSTRACT.pdf
https://eprints.ums.edu.my/id/eprint/42194/2/FULL%20TEXT.pdf
https://eprints.ums.edu.my/id/eprint/42194/
https://doi.org/10.3390/w16202874
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spelling my.ums.eprints.421942024-12-10T07:10:56Z https://eprints.ums.edu.my/id/eprint/42194/ Impact of thinning and contour-felled logs on overland flow, soil erosion, and litter erosion in a monoculture Japanese cypress forest plantation Moein Farahnak Takanori Sato Nobuaki Tanaka Anand Nainar Ibtisam Mohd Ghaus Koichiro Kuraji SD1-669.5 Forestry SD390-390.43 Forest soils This study investigated the impact of thinning and felled logs (random- and contour-felled logs) on overland flow, soil erosion, and litter erosion in a Japanese cypress forest plantation (2400 tree ha−1) with low ground cover, from 2018 to 2023 in central Japan. Monthly measurements of overland flow and soil and litter erosion were carried out using small-sized traps across three plots (two treatments and one control). In early 2020, a 40% thinning (tree ha−1) was conducted in the two treatment plots. Overland flow increased in the plot with random-felled logs during the first year post-thinning (from 139.1 to 422.0 L m−1), while it remained stable in the plot with contour-felled logs (from 341.8 to 337.1 L m−1). A paired-plot analysis showed no change in overland flow in the contour-felled logs plot compared to the control plot from the pre- to post-thinning periods (pre-thinning Y = 0.41X − 0.69, post-thinning Y = 0.5X + 5.46, ANCOVA: p > 0.05). However, exposure to direct rainfall on uncovered ground areas post-thinning led to increased soil and litter erosion in both treatment plots. These findings suggest that thinning combined with contour-felled logs effectively stabilizes overland flow. Therefore, thinning with contour-felled logs can be considered a viable method for mitigating overland flow in monoculture plantations with low ground cover. MDPI Multidisciplinary Digital Publishing Institute 2024 Article NonPeerReviewed text en https://eprints.ums.edu.my/id/eprint/42194/1/ABSTRACT.pdf text en https://eprints.ums.edu.my/id/eprint/42194/2/FULL%20TEXT.pdf Moein Farahnak and Takanori Sato and Nobuaki Tanaka and Anand Nainar and Ibtisam Mohd Ghaus and Koichiro Kuraji (2024) Impact of thinning and contour-felled logs on overland flow, soil erosion, and litter erosion in a monoculture Japanese cypress forest plantation. Water, 16. pp. 1-16. https://doi.org/10.3390/w16202874
institution Universiti Malaysia Sabah
building UMS Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sabah
content_source UMS Institutional Repository
url_provider http://eprints.ums.edu.my/
language English
English
topic SD1-669.5 Forestry
SD390-390.43 Forest soils
spellingShingle SD1-669.5 Forestry
SD390-390.43 Forest soils
Moein Farahnak
Takanori Sato
Nobuaki Tanaka
Anand Nainar
Ibtisam Mohd Ghaus
Koichiro Kuraji
Impact of thinning and contour-felled logs on overland flow, soil erosion, and litter erosion in a monoculture Japanese cypress forest plantation
description This study investigated the impact of thinning and felled logs (random- and contour-felled logs) on overland flow, soil erosion, and litter erosion in a Japanese cypress forest plantation (2400 tree ha−1) with low ground cover, from 2018 to 2023 in central Japan. Monthly measurements of overland flow and soil and litter erosion were carried out using small-sized traps across three plots (two treatments and one control). In early 2020, a 40% thinning (tree ha−1) was conducted in the two treatment plots. Overland flow increased in the plot with random-felled logs during the first year post-thinning (from 139.1 to 422.0 L m−1), while it remained stable in the plot with contour-felled logs (from 341.8 to 337.1 L m−1). A paired-plot analysis showed no change in overland flow in the contour-felled logs plot compared to the control plot from the pre- to post-thinning periods (pre-thinning Y = 0.41X − 0.69, post-thinning Y = 0.5X + 5.46, ANCOVA: p > 0.05). However, exposure to direct rainfall on uncovered ground areas post-thinning led to increased soil and litter erosion in both treatment plots. These findings suggest that thinning combined with contour-felled logs effectively stabilizes overland flow. Therefore, thinning with contour-felled logs can be considered a viable method for mitigating overland flow in monoculture plantations with low ground cover.
format Article
author Moein Farahnak
Takanori Sato
Nobuaki Tanaka
Anand Nainar
Ibtisam Mohd Ghaus
Koichiro Kuraji
author_facet Moein Farahnak
Takanori Sato
Nobuaki Tanaka
Anand Nainar
Ibtisam Mohd Ghaus
Koichiro Kuraji
author_sort Moein Farahnak
title Impact of thinning and contour-felled logs on overland flow, soil erosion, and litter erosion in a monoculture Japanese cypress forest plantation
title_short Impact of thinning and contour-felled logs on overland flow, soil erosion, and litter erosion in a monoculture Japanese cypress forest plantation
title_full Impact of thinning and contour-felled logs on overland flow, soil erosion, and litter erosion in a monoculture Japanese cypress forest plantation
title_fullStr Impact of thinning and contour-felled logs on overland flow, soil erosion, and litter erosion in a monoculture Japanese cypress forest plantation
title_full_unstemmed Impact of thinning and contour-felled logs on overland flow, soil erosion, and litter erosion in a monoculture Japanese cypress forest plantation
title_sort impact of thinning and contour-felled logs on overland flow, soil erosion, and litter erosion in a monoculture japanese cypress forest plantation
publisher MDPI Multidisciplinary Digital Publishing Institute
publishDate 2024
url https://eprints.ums.edu.my/id/eprint/42194/1/ABSTRACT.pdf
https://eprints.ums.edu.my/id/eprint/42194/2/FULL%20TEXT.pdf
https://eprints.ums.edu.my/id/eprint/42194/
https://doi.org/10.3390/w16202874
_version_ 1818835187708985344
score 13.223943

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