講演詳細

立地部門[Forest Environment]

日付	2025年3月22日
開始時刻	11:15
会場名	N13
講演番号	I-9
発表題目	Linking fine root traits to belowground carbon dynamics in middle-aged plantations of four tree species Linking fine root traits to belowground carbon dynamics in middle-aged plantations of four tree species
所属	Kangwon National University
要旨本文	The objective of this study was to identify the fine root traits and soil properties influencing soil respiration (Rs) in four plantations of Robinia pseudoacacia, Quercus mongolica, Pinus koraiensis, and Metasequoia glyptostroboides in Korea. Rs, soil temperature, and soil water content were measured seasonally, and soil samples were collected to analyze physicochemical properties and the morphological traits of fine roots categorized by diameter. The results showed significant differences in Rs normalized at 25 °C (R25) among the plantations. R25 was positively influenced by soil physicochemical properties (electrical conductivity, total nitrogen, total carbon, and clay content) and the morphological traits (length, surface area, and volume) of very fine roots (≤ 0.5 mm). Consequently, higher Rs was observed in nutrient-rich soils with well-developed very fine roots, and this relationship was pronounced under high-temperature conditions.
著者氏名	○Seung Won Lim1 ・ Kyuhong Song1 ・ Ji Won Jang1 ・ Se Hee Lee1 ・ Nam Jin Noh2
著者所属	1Department of Forestry and Environmental Systems, Kangwon National University ・ 2Division of Forest Science, Kangwon National University
キーワード	black locust, oak, pine, redwood, soil respiration
Key word	black locust, oak, pine, redwood, soil respiration