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Open AccessFeature PaperCommunication

Differential Effects of Coarse Woody Debris on Microbial and Soil Properties in Pinus densiflora Sieb. et Zucc. Forests

Department of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Korea
BK21 Plus Eco-leader Education center, Korea University, Seoul 02841, Korea
Author to whom correspondence should be addressed.
Forests 2017, 8(8), 292;
Received: 25 July 2017 / Revised: 8 August 2017 / Accepted: 10 August 2017 / Published: 11 August 2017
(This article belongs to the Special Issue Coarse Woody Debris of Forests in a Changing World)
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Although coarse woody debris (CWD) is important for soil functioning, the mechanism which affects soil properties beneath CWD are unclear. Here, initial changes in microbial and soil properties were studied using homogenous CWD samples in eight Korean red pine (Pinus densiflora Sieb. et Zucc.) forests. For each forest, CWD samples (diameter: 11.1 ± 0.1 cm; length: 10.2 ± 0.0 cm) from similarly aged Korean red pine trees were laid on the mineral soil surface from May to June, 2016, and soils were sampled at points beneath CWD and at a distance of 1 m from the CWD after 1 year. Soils beneath the CWD had higher moisture but lower inorganic nitrogen (N) and a higher microbial biomass C (carbon)/N ratio than those sampled 1 m from the CWD. No differences in total C and N, labile C, pH, and C substrate utilization between the soils were significant. The difference in inorganic N between the soils decreased with increasing CWD decomposition, whereas that for microbial biomass fraction in total C and N increased correspondingly. Our results showed that soil microbial affinity for retaining N might become higher than that for retaining C under the presence of CWD, which possibly alters N availability and generates a spatial heterogeneity in forest soils. View Full-Text
Keywords: dead wood; EcoPlate; microbial biomass; nitrogen availability; soil carbon dead wood; EcoPlate; microbial biomass; nitrogen availability; soil carbon

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Kim, S.; Li, G.; Han, S.H.; Chang, H.; Kim, H.-J.; Son, Y. Differential Effects of Coarse Woody Debris on Microbial and Soil Properties in Pinus densiflora Sieb. et Zucc. Forests. Forests 2017, 8, 292.

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