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Species- and elevation-dependent productivity changes in East Asian temperate forests

Authors
Kim, MoonilHam, Bo-YoungKraxner, FlorianShvidenko, AnatolySchepaschenko, DmitryKrasovskii, AndreyPark, TaejinLee, Woo-Kyun
Issue Date
3월-2020
Publisher
IOP PUBLISHING LTD
Keywords
mountain forests; lowland forests; net primary productivity; increment core; national forest inventory; MODIS; stand-level annual increment
Citation
ENVIRONMENTAL RESEARCH LETTERS, v.15, no.3
Indexed
SCIE
SCOPUS
Journal Title
ENVIRONMENTAL RESEARCH LETTERS
Volume
15
Number
3
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/57482
DOI
10.1088/1748-9326/ab71a2
ISSN
1748-9326
Abstract
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 five major temperate tree species (Pinus densiflora, PD; Larix kaempferi, LK; Pinus koraiensis, PK; Quercus variabilis, QV; and Quercus mongolica, QM) 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 MODerate resolution Imaging Spectroradiometer (MODIS) net primary productivity 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 in primary productivity by tree species over the past four decades. Based on our result from NFI plots and increment core data sets, the productivity of PD, QV, and QM in LLF was relatively higher than those in HMF, while LK and PK in HMF were more productive than lowland ones. Our analysis of the increment core data revealed a contrasting pattern of long-term productivity changes between coniferous and oak tree species. While the productivity of oak tree species tended to increase after the 1990s, the productivity in coniferous forests tended to decrease. These differences across forest types and their altitudinal classes are also noticeable from the MODIS product. The results of our study can be used to develop climate-smart forest management strategies to ensure that the forests continue to be resilient and continue to provide a wide range of ecosystem services in the Eastern Asian region.
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LEE, Woo Kyun
생명과학대학 (환경생태공학부)
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