The Effects of Climate Change and Forest Management on Carbon Sequestration and Wood Production in Climate Change era -A Case Study of Economical Forest Growing Sites in Han River Basin, South Korea-
Abstract
Forest ecosystems provide a variety of essential ecosystem services, especially climate regulation and wood provision. South Korea is particularly interested in carbon sequestration (CS) to achieve the goal of becoming carbon neutral by 2050. Continuous forest management (FM) is necessary to improve the trees' growth and achieve climate change (CC) mitigation goals. However, FM affects forest dynamics (FD), such as species and age classes. In addition, it changes the list of species in produced wood (LSPW) and affects the wood industry. FM in South Korea is mainly periodic thinning and harvesting for Economical Forest Growing Sites (EFGS). Wood production is dominated by coniferous trees (e.g. Pinus densiflora, Pinus koraiensis, and Larix kaempferi), and coniferous wood prices are higher than broad-leaf wood. Therefore, predicting the FD and LSPW are important for sustaining the wood industry. This study simulated the effects of CC and FM on FD, CS, and LSPW on EFGS in Han river basin, South Korea. We used forest landscape model LANDIS-II Biomass Succession and Biomass Harvest with climate scenarios (business as usual; BAU and RCP 8.5) and FM scenario (MGT) based on 5~30% intensity thinning from 2020 to 2100 simulation. The result showed decline of the initial dominant coniferous species ( IDCS), and they were replaced with shade-tolerant broad-leaf understories (Tilia amurensis and Acer pictum var. mono; STBU). In RCP 8.5, the decline of IDCS was accelerated compared to BAU. In MGT, IDCS were harvested, and accordingly, the growth of STBU rapidly increased. Therefore, CC and FM are expected to accelerate the forest succession from IDCS to STBU. In CS, BAU, the average annual CS decreased from 1.5 tC/ha to 0.2 tC/ha. Furthermore, RCP 8.5 showed a greater decrease over the same period. On the other hand, in MGT the growth of STBU was induced through the improvement of the growth environment by continuous thinning, which lead to CS enhancement. LSPW was replaced from IDCS to STBU during the simulation period. Accordingly, the long-term thinning practice may be suitable to mitigate CC, but continuing the high values of wood production is challenging. Therefore, we should find new values for wood production of STBU, and securing places of use is needed to achieve the win-win strategy for CC mitigation and a continuous wood industry.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2022
- Bibcode:
- 2022AGUFMGC35C..06C