Inter‐annual and inter‐plot variations of wood biomass production as related to biotic and abiotic characteristics at a deciduous forest in complex terrain, Korea

Kim, Young-il; Kang, Sinkyu; Lim, Jong-Hwan; Lee, Dowon; Kim, Joon

doi:10.1007/s11284-010-0705-3

Cited by 6 publications

(3 citation statements)

References 49 publications

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“…The total biomass increased from 274.01 tons ha À1 in 1998 to 293.07 tons ha À1 in 2003; however, it gradually decreased to 249.53 tons ha À1 in 2013 with a net decrease of 24.48 tons ha À1 . Allometric equations reported by Kim et al (2010) used to estimate tree biomass. In the GEF, the equation Biomass = 0.1673 · DBH 2.393 was used for deciduous species, whereas Biomass = 0.086 · DBH 2.393 was used for conifer species.…”

Section: Forest Stand Biomass and Dynamicsmentioning

confidence: 99%

Long‐term ecological research on Korean forest ecosystems: the current status and challenges

Yun¹,

Chun²

2018

Ecological Research

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The present study aims to monitor the long‐term changes in forest structure, productivity, nutrient cycling, and to accumulate ecological information on forest ecosystem in Korea. There are six long‐term ecological research sites and seven flux measurement sites in Korea. The Gwangneung experimental forest (GEF) located in the central cool‐temperate forest sub zone is known as a model site where many interdisciplinary researches have been ongoing actively since mid‐1990s over all other Korea long‐term ecological research sites (KLTER). Collected data and information through monitoring and investigation of changes in forest ecosystem have been stored in a database for analyses. The relative importance of tree species (%) of GEF was in the order Quercus serrata (20) = Euonymus oxyphyllus (20) > Carpinus laxiflora (12). The total biomass and basal area were 249.53 t ha−1 and 26.66 m2 ha−1, respectively. There were 136 taxa with 49 families, with 97 genera, 11 varieties, 3 forma, and 1 subspecies in 1 ha permanent plot. The increase in temperature has been estimated to have negative effects on tree growth. The litter decomposition rate was in the order Cornus controversa < C. cordata < C. laxiflora < Q. serrata. The average litterfall and soil respiration were 5803 kg ha−1 and 8600 kg C ha−1, respectively. Further, the GEF, a KLTER site tended to be almost carbon neutral with an annual growth average of 51,000 ± 78,000 kg ha−1. The data from six LTER sites are digitalized and classified to build data catalogs on the ecological information system. The information on stand dynamics and materials and energy budget in the forest ecosystem is utilized for impact assessment and the study of adaptation strategy for forest ecosystem to climate change.

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Section: Forest Stand Biomass and Dynamicsmentioning

confidence: 99%

Long‐term ecological research on Korean forest ecosystems: the current status and challenges

Yun¹,

Chun²

2018

Ecological Research

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“…To examine the implications of the estimated T for assessing carbon uptake capacity, we compared T with wood biomass production (WBP) data in the Gwangneung catchment reported by Kim et al (2010) since this is the only longterm productivity data in the study area. The WBP data were measured from 10 plots in the Gwangneung catchment with the size of each plot being 20 m×20 m. The total number of measured tree specimen encompasses 259 from 17 species.…”

Section: Implications For Catchment Scale Carbon Uptakementioning

confidence: 99%

Partitioning of catchment water budget and its implications for ecosystem carbon exchange

et al. 2010

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Abstract. Spatially averaged annual carbon budget is one of the key information needed to understand ecosystem response and feedback to climate change. Water availability is a primary constraint of carbon uptake in many ecosystems and therefore the estimation of ecosystem water use may serve as an alternative to quantify Gross Primary Productivity (GPP). To examine this concept, we estimated a long-term steady state water budget for the Han River basin (∼26 000 km 2 ) in Korea and examined its application for catchment scale carbon exchange. For this, the catchment scale evapotranspiration (ET) was derived from the long term precipitation (P ) and discharge (Q) data. Then, using stable isotope data of P and Q along with other hydrometeorological information, ET was partitioned into evaporation from soil and water surfaces (E S ), evaporation from intercepted rainfall (E I ), and transpiration (T ). E S was identified as a minor component of ET in the study areas regardless of the catchment scales. The annual T , estimated from ET after accounting for E I and E S for the Han River basin from 1966 to 2007, was 22∼31% of annual P and the proportion decreased with increasing P . Assuming that T further constrains the catchment scale GPP in terms of water use efficiency (WUE), we examined the possibility of using T as a relative measure for the strength and temporal changes of carbon uptake capacity. The proposed relationship would provide a simple and practical way to assess the spatial disCorrespondence to: D. Lee (dlee@ieg.or.kr) tribution of ecosystem GPP, provided the WUE estimates in terms of GPP/T at ecosystem scale could be obtained. For carbon and water tracking toward a sustainable Asia, ascertaining such a spatiotemporally representative WUE and their variability is a requisite facing the flux measurement and modeling communities.

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“…The forest represents one of the climax stages of temperate deciduous forests in East Asia (You et al 1995). Numerous studies have been conducted in a 1 ha permanent plot of GEF for the purpose of determining stand structure , biomass production Kim et al 2010), litterfall, and litter decomposition (You et al 2000;Kim et al 2003), and succession (You et al 1995(You et al , 1996. The first study related to CWD in the GEF determined the distribution of CWD to analyze stand structure regarding disturbance and regeneration patterns (Cho 1992), however, CWD mass was not measured in that study.…”

Section: Introductionmentioning

confidence: 99%

Mass dynamics of coarse woody debris in an old-growth deciduous forest of Gwangneung, Korea

Yoon

Noh

Kim

et al. 2011

Forest Science and Technology

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We investigated the mass dynamics of coarse woody debris (CWD) in an old-growth deciduous forest dominated by Quercus serrata, Carpinus laxiflora, and C. cordata in a 1 ha permanent plot of the Gwangneung Experiment Forest, Korea, from 2002 through 2010. CWD mass varied from 16.8 to 34.2 Mg ha 71 , and the ratio of CWD mass to stand biomass varied from 0.06 to 0.13. The mean CWD mass input and loss rates were 4.81 Mg ha 71 yr 71 and 2.28 Mg ha 71 yr 71 , respectively. A large heterogeneity of CWD mass, as represented by the spatial coefficient of variation (127.2%) and annual coefficient of variation (178.5%), might be inherent in the old-growth temperate forest, which consisted of large biomass trees. The decay rate constant, as estimated from the wood density change, was 0.049 yr 71 . However, the large variation of annual CWD mass input could cause the overestimation of decay rate constant (0.167 yr 71 ) as calculated from the ratio of CWD mass input to CWD mass. According to the CWD decay class classification, class II (72.8%) comprised the majority of CWD mass. The proportion of CWD mass to total CWD mass was 57.5% for Q. serrata, 25.0% for C. laxiflora, and 10.4% for C. cordata, respectively, and corresponded to the proportion of stem biomass to total stem biomass. These data support the stability of the current status in this old-growth deciduous forest as representing the climax stage. Due to the relatively short-term measurement of CWD mass compared with the whole life span of CWD, additional long-term studies with various approaches are required to enhance the knowledge of CWD mass dynamics in this forest.

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Inter‐annual and inter‐plot variations of wood biomass production as related to biotic and abiotic characteristics at a deciduous forest in complex terrain, Korea

Cited by 6 publications

References 49 publications

Long‐term ecological research on Korean forest ecosystems: the current status and challenges

Long‐term ecological research on Korean forest ecosystems: the current status and challenges

Partitioning of catchment water budget and its implications for ecosystem carbon exchange

Mass dynamics of coarse woody debris in an old-growth deciduous forest of Gwangneung, Korea

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