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ArticleThe change in forest productivity and stand-dynamics under climate change in East Asian temperate forests: A case study from South Korean forests
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.The velocity and impact of climate change on forest appear to be site, environment, and tree species-specific.The primary objective of this research is to assess the changes in productivity of major temperate tree species in South Korea using terrestrial inventory and satellite remote sensing data. The area covered by each tree species was further categorized into either lowland forest (LLF) or high mountain forest (HMF) and investigated. We used the repeated Korean national forest inventory (NFI) data to calculate a stand-level annual increment (SAI). We then compared the SAI, a ground-based productivity measure, to MODIS net primary productivity (NPP) as a measure of productivity based on satellite imagery. In addition, the growth index of each increment core, which eliminated the effect of tree age on radial growth, was derived as an indicator of the variation of productivity by tree species over the past four decades. Based on these steps, we understand the species- and elevation-dependent dynamics. The secondary objective is to predict the forest dynamics under climate change using the Perfect Plasticity Approximation with Simple Biogeochemistry (PPA- SiBGC) model. The PPA-SiBGC is an analytically tractable model of forest dynamics, defined in terms of parameters for individual trees, including allometry, growth, and mortality. We estimated these parameters for the major species by using NFI and increment core data. We predicted forest dynamics using the following time-series metrics: Net ecosystem exchange, aboveground biomass, belowground biomass, C, soil respiration, and relative abundance. We then focus on comparing the impact of climate change on LLF and HMF. The results of our study can be used to develop climate-smart forest management strategies to ensure that both LLF and HMF continue to be resilient and continue to provide a wide range of ecosystem services in the Eastern Asian region. Keywords: mountain forests, lowland forests, increment core, national forest inventory, MODIS NPP ID: 3486900 -
ArticleImpacts of the national forest rehabilitation plan and human-induced environmental changes on the carbon and nitrogen balances of the South Korean forests
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.The carbon (C) balance is a key to the climate regulation role of forests, and the nitrogen (N) balance affects forest productivity, ground and surface water quality, and the emission of N2O. Humans have impacted the C and N balances, but quantification of the responses of forests to human activities is limited. This study aimed to quantify 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 balance of the South Korean forests during 1973–2020 by using a biogeochemical model. The C and N balance increased from 0.20 to 4.30 Mg C ha–1 year–1 and from 0.20 to 17.4 kg N ha-1 year-1, respectively. This led to the whole South Korean forests to newly store 825 Tg C and 3.04 Tg N 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 for the newly stored C stock, respectively, and –25.4, 8.90, and 1,807 Mg N for the newly stored N stock, respectively. This study would provide references on the benefits of forest rehabilitation for the C and N balance and for future forest rehabilitation efforts. Moreover, our findings improve the understanding of the impacts of human activities on the C and N balance. Keywords: Carbon, Nitrogen, South Korean forests, Climate change, Human impacts ID: 3622951 -
ArticleSectoral coordination of forest management policy in North Korean legal system
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.This study aims at understanding policy coordination between the forest sector and non-forest sector for forest management in the overall North Korean laws. It investigates forest policies revealed in the North Korean legal system by searching for forest-related keywords in 239 North Korean Acts. This study focuses on two main goals through the content analysis ethodology. First, it aims to analyze the connection between the Forest Act and non-forest Acts (e.g., Energy Act, Water Resource Management Act, Environment Act, etc.) in terms of forest policy and forest management. Second, the study classifies the categories of forest-related keywords in North Korean Acts based on the four forest ecosystem services (provisioning, supporting, regulating, and cultural services). The research first extracts forest-related keywords in North Korean laws by using the Unification Law Database offered by the Ministry of Justice and the Ministry of Unification in South Korea. Through extracting and categorizing keywords of Acts, this study examines the state of North Korean forest management from a macroscopic viewpoint: the functions of forests that North Korea emphasizes and the forest management issues in law and regulations. Research findings provide a better understanding of the sectoral coordination of forest management policy in the North Korean legal system towards a sustainable society. Keywords: North Korea(DPRK), North Korean Forest, Forest Policy, Legal Analysis, Ecosystem Services ID: 3621727
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