The Effects of Stand Density Control on Carbon Cycle in <i>Chamaecyparis obtusa</i> (Siebold and Zucc.) Endl. Forests

This study was conducted to quantify the carbon storage in each pool (including trees, forest floor, and soil) and to analyze the carbon cycle in a <i>Chamaecyparis obtusa</i> (Siebold and Zucc.) Endl. forest according to different thinning intensities. The study site was located in Goch...

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Main Authors: Jeong-Gwan Lee, Du-Hee Lee, Jun-Young Jung, Sle-Gee Lee, Seung Hyun Han, Seongjun Kim, Hyun-Jun Kim
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Forests
Subjects:
Online Access:https://www.mdpi.com/1999-4907/14/2/217
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author Jeong-Gwan Lee
Du-Hee Lee
Jun-Young Jung
Sle-Gee Lee
Seung Hyun Han
Seongjun Kim
Hyun-Jun Kim
author_facet Jeong-Gwan Lee
Du-Hee Lee
Jun-Young Jung
Sle-Gee Lee
Seung Hyun Han
Seongjun Kim
Hyun-Jun Kim
author_sort Jeong-Gwan Lee
collection DOAJ
description This study was conducted to quantify the carbon storage in each pool (including trees, forest floor, and soil) and to analyze the carbon cycle in a <i>Chamaecyparis obtusa</i> (Siebold and Zucc.) Endl. forest according to different thinning intensities. The study site was located in Gochang-gun, Jeollabuk-do, and the treatments consisted of a control (Con), a light thinning (LT), and a heavy thinning (HT), based on 3000 trees originally planted per hectare. As stand density decreased, total C storage decreased, and the annual C storage of trees and C released through soil respiration significantly increased. Net ecosystem production (NEP; Mg·C·ha<sup>−1</sup>·year<sup>−1</sup>), as the difference between net primary production and microbial respiration, was 1.95, 2.49, and 2.11 in the Con, LT, and HT treatments, respectively; i.e., the LT stimulated greater NEP than the Con and HT treatments. While these results show that thinning decreases total C storage of forests, proper thinning enhances carbon uptake capacity. In addition, this study can be a basic reference for the effects of thinning on forest carbon cycles. Repeated measurements of each C pool should be performed over multiple years to see the exact movement patterns of forest carbon in the future.
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spelling doaj.art-9b05a05166ee4c20b392c650c52f0ad82023-11-16T20:32:55ZengMDPI AGForests1999-49072023-01-0114221710.3390/f14020217The Effects of Stand Density Control on Carbon Cycle in <i>Chamaecyparis obtusa</i> (Siebold and Zucc.) Endl. ForestsJeong-Gwan Lee0Du-Hee Lee1Jun-Young Jung2Sle-Gee Lee3Seung Hyun Han4Seongjun Kim5Hyun-Jun Kim6Department of Forest Resources, Chonnam National University, Gwangju 61187, Republic of KoreaDepartment of Forest Resources, Chonnam National University, Gwangju 61187, Republic of KoreaDepartment of Forest Resources, Chonnam National University, Gwangju 61187, Republic of KoreaDepartment of Forest Resources, Chonnam National University, Gwangju 61187, Republic of KoreaForest Technology and Management Research Center, National Institute of Forest Science, Pocheon 11186, Republic of KoreaCenter for Endangered Species, National Institute of Ecology, Yeongyang 36531, Republic of KoreaDepartment of Forest Resources, Chonnam National University, Gwangju 61187, Republic of KoreaThis study was conducted to quantify the carbon storage in each pool (including trees, forest floor, and soil) and to analyze the carbon cycle in a <i>Chamaecyparis obtusa</i> (Siebold and Zucc.) Endl. forest according to different thinning intensities. The study site was located in Gochang-gun, Jeollabuk-do, and the treatments consisted of a control (Con), a light thinning (LT), and a heavy thinning (HT), based on 3000 trees originally planted per hectare. As stand density decreased, total C storage decreased, and the annual C storage of trees and C released through soil respiration significantly increased. Net ecosystem production (NEP; Mg·C·ha<sup>−1</sup>·year<sup>−1</sup>), as the difference between net primary production and microbial respiration, was 1.95, 2.49, and 2.11 in the Con, LT, and HT treatments, respectively; i.e., the LT stimulated greater NEP than the Con and HT treatments. While these results show that thinning decreases total C storage of forests, proper thinning enhances carbon uptake capacity. In addition, this study can be a basic reference for the effects of thinning on forest carbon cycles. Repeated measurements of each C pool should be performed over multiple years to see the exact movement patterns of forest carbon in the future.https://www.mdpi.com/1999-4907/14/2/217carbon storagethinningstand densityannual growthmaterial cycle
spellingShingle Jeong-Gwan Lee
Du-Hee Lee
Jun-Young Jung
Sle-Gee Lee
Seung Hyun Han
Seongjun Kim
Hyun-Jun Kim
The Effects of Stand Density Control on Carbon Cycle in <i>Chamaecyparis obtusa</i> (Siebold and Zucc.) Endl. Forests
Forests
carbon storage
thinning
stand density
annual growth
material cycle
title The Effects of Stand Density Control on Carbon Cycle in <i>Chamaecyparis obtusa</i> (Siebold and Zucc.) Endl. Forests
title_full The Effects of Stand Density Control on Carbon Cycle in <i>Chamaecyparis obtusa</i> (Siebold and Zucc.) Endl. Forests
title_fullStr The Effects of Stand Density Control on Carbon Cycle in <i>Chamaecyparis obtusa</i> (Siebold and Zucc.) Endl. Forests
title_full_unstemmed The Effects of Stand Density Control on Carbon Cycle in <i>Chamaecyparis obtusa</i> (Siebold and Zucc.) Endl. Forests
title_short The Effects of Stand Density Control on Carbon Cycle in <i>Chamaecyparis obtusa</i> (Siebold and Zucc.) Endl. Forests
title_sort effects of stand density control on carbon cycle in i chamaecyparis obtusa i siebold and zucc endl forests
topic carbon storage
thinning
stand density
annual growth
material cycle
url https://www.mdpi.com/1999-4907/14/2/217
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