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

编号 010030703

推送时间 20210906

研究领域 森林生态 

年份 2021 

类型 期刊 

语种 英语

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

来源期刊 forest

期 第307期

发表时间 20210825

关键词 modeling;  human activities;  climate change;  air temperature;  CO2 concentration;  nitrogen deposition; 

摘要 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, CO2 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?1 year?1, and the N balance increased from 0.2 to 17.4 kg N ha?1 year?1. 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, CO2 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. View Full-Text

服务人员 王璐

服务院士 蒋有绪

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