Impacts of the National Forest Rehabilitation Plan and Human-Induced Environmental Changes on the Carbon and Nitrogen Balances of the South Korean Forests

Humans have affected the carbon (C) and nitrogen (N) cycles in forests; however, the quantification of the responses of forest C and N balances to human activities is limited. In this study, we have quantified the impacts of the long-term national forest rehabilitation plan and the contribution of t...

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Main Authors: Hyung-Sub Kim, Florent Noulèkoun, Nam-Jin Noh, Yo-Whan Son
Format: Article
Language:English
Published: MDPI AG 2021-08-01
Series:Forests
Subjects:
Online Access:https://www.mdpi.com/1999-4907/12/9/1150
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author Hyung-Sub Kim
Florent Noulèkoun
Nam-Jin Noh
Yo-Whan Son
author_facet Hyung-Sub Kim
Florent Noulèkoun
Nam-Jin Noh
Yo-Whan Son
author_sort Hyung-Sub Kim
collection DOAJ
description Humans have affected the carbon (C) and nitrogen (N) cycles in forests; however, the quantification of the responses of forest C and N balances to human activities is limited. In this study, we have quantified the impacts of the long-term national forest rehabilitation plan and the contribution of the increase in air temperature, CO<sub>2</sub> concentration, and N deposition on the C and N balances of the South Korean forests during 1973–2020 by using a biogeochemical model. During the simulation period, the C balance increased from 0.2 to 4.3 Mg C ha<sup>−1</sup> year<sup>−1</sup>, and the N balance increased from 0.2 to 17.4 kg N ha<sup>−1</sup> year<sup>−1</sup>. This resulted in the storage of 825 Tg C and 3.04 Tg N by the whole South Korean forests after the national forest rehabilitation plan. The increase in air temperature, CO<sub>2</sub> concentration, and N deposition contributed −11.5, 17.4, and 177 Tg C to the stored C stock, respectively, and −25.4, 8.90, and 1807 Mg N to the stored N stock, respectively. This study provides references for future forest rehabilitation efforts and broadens our knowledge on the impacts of human-induced environmental changes on the C and N balances of forests.
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spelling doaj.art-b0753de66831485cb88a64552ecfc85f2023-11-22T13:06:49ZengMDPI AGForests1999-49072021-08-01129115010.3390/f12091150Impacts of the National Forest Rehabilitation Plan and Human-Induced Environmental Changes on the Carbon and Nitrogen Balances of the South Korean ForestsHyung-Sub Kim0Florent Noulèkoun1Nam-Jin Noh2Yo-Whan Son3Institute of Life Science and Natural Resource, Korea University, Seoul 02841, KoreaAgroforestry Systems and Ecology Laboratory, Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, KoreaDepartment of Forest Resources, Kangwon National University, Chuncheon 24341, KoreaDivision of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, KoreaHumans have affected the carbon (C) and nitrogen (N) cycles in forests; however, the quantification of the responses of forest C and N balances to human activities is limited. In this study, we have quantified the impacts of the long-term national forest rehabilitation plan and the contribution of the increase in air temperature, CO<sub>2</sub> concentration, and N deposition on the C and N balances of the South Korean forests during 1973–2020 by using a biogeochemical model. During the simulation period, the C balance increased from 0.2 to 4.3 Mg C ha<sup>−1</sup> year<sup>−1</sup>, and the N balance increased from 0.2 to 17.4 kg N ha<sup>−1</sup> year<sup>−1</sup>. This resulted in the storage of 825 Tg C and 3.04 Tg N by the whole South Korean forests after the national forest rehabilitation plan. The increase in air temperature, CO<sub>2</sub> concentration, and N deposition contributed −11.5, 17.4, and 177 Tg C to the stored C stock, respectively, and −25.4, 8.90, and 1807 Mg N to the stored N stock, respectively. This study provides references for future forest rehabilitation efforts and broadens our knowledge on the impacts of human-induced environmental changes on the C and N balances of forests.https://www.mdpi.com/1999-4907/12/9/1150modelinghuman activitiesclimate changeair temperatureCO<sub>2</sub> concentrationnitrogen deposition
spellingShingle Hyung-Sub Kim
Florent Noulèkoun
Nam-Jin Noh
Yo-Whan Son
Impacts of the National Forest Rehabilitation Plan and Human-Induced Environmental Changes on the Carbon and Nitrogen Balances of the South Korean Forests
Forests
modeling
human activities
climate change
air temperature
CO<sub>2</sub> concentration
nitrogen deposition
title Impacts of the National Forest Rehabilitation Plan and Human-Induced Environmental Changes on the Carbon and Nitrogen Balances of the South Korean Forests
title_full Impacts of the National Forest Rehabilitation Plan and Human-Induced Environmental Changes on the Carbon and Nitrogen Balances of the South Korean Forests
title_fullStr Impacts of the National Forest Rehabilitation Plan and Human-Induced Environmental Changes on the Carbon and Nitrogen Balances of the South Korean Forests
title_full_unstemmed Impacts of the National Forest Rehabilitation Plan and Human-Induced Environmental Changes on the Carbon and Nitrogen Balances of the South Korean Forests
title_short Impacts of the National Forest Rehabilitation Plan and Human-Induced Environmental Changes on the Carbon and Nitrogen Balances of the South Korean Forests
title_sort impacts of the national forest rehabilitation plan and human induced environmental changes on the carbon and nitrogen balances of the south korean forests
topic modeling
human activities
climate change
air temperature
CO<sub>2</sub> concentration
nitrogen deposition
url https://www.mdpi.com/1999-4907/12/9/1150
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