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http://dx.doi.org/10.5532/KJAFM.2018.20.4.357

Carbon and Nitrogen Dynamics of Wood Stakes as Affected by Soil Amendment Treatments in a Post-Fire Restoration Area  

Park, Seong-Wan (Department of Forest Resources, Gyeongnam National University of Science and Technology)
Baek, Gyeongwon (Department of Forest Resources, Gyeongnam National University of Science and Technology)
Byeon, Hee-Seop (Department of Environmental Materials Science, Institute of Agriculture & Life Science, Gyeongsang National University)
Kim, Yong Suk (Division of Forest Conservation and Restoration, National Institute of Forest Science)
Kim, Choonsig (Department of Forest Resources, Gyeongnam National University of Science and Technology)
Publication Information
Korean Journal of Agricultural and Forest Meteorology / v.20, no.4, 2018 , pp. 357-365 More about this Journal
Abstract
This study was carried out to evaluate the weight loss rates, carbon and nitrogen dynamics of wood stakes following soil amendment treatments (CLB: compound fertilizer + lime + biochar; LB: lime + biochar) in a post-fire restoration area, Ulsan Metropolitan city, southern Korea. Soil amendments in the fire-disturbed area were applied to two-times (Mar. and Jun. 2015, 2016) during the study period. Wood stakes on Mar. 2015 were buried at a top 15cm of mineral soil in two soil amendment and control treatments of Liriodendron tulipifera, Prunus yedoensis, Quercus acutissima, Pinus thunbergii plantations and an unplanted area in the post-fire restoration area. Wood stakes were collected at Oct. 2015, Mar. 2016 and Oct. 2016 to measure weight loss rates, organic carbon and nitrogen concentrations. Weight loss rates of wood stakes were not significantly affected by soil amendment treatments. However, remaining carbon of wood stakes were lowest in the control treatment (43.7%), followed by the CLB (71.3%) and the LB (71.6%) treatments. Remaining nitrogen of wood stakes was less in the control treatment (29.7%) compared with the LB treatment (52.6%). The results indicate that carbon and nitrogen mineralization of wood stakes in post-fire restoration area were delayed by soil amendment treatments.
Keywords
Biochar; Forest fire; Nutrient dynamics; Wood nutrient; Wood decomposition;
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