Regional evaluation of carbon fixation in conifer plantations using tee traits

2014 Fiscal Year Final Research Report

• Project/Area Number: 23580208
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Forest science
• Research Institution: Kyushu University
• Principal Investigator: ENOKI Tsutomu 九州大学, (連合)農学研究科(研究院), 准教授 (10305188)
• Co-Investigator(Renkei-kenkyūsha): MIZOUE Nobuya 九州大学, 大学院農学研究院, 准教授 (00274522) ; TAKAGI Masahiro 宮崎大学, 農学部, 准教授 (70315375) ; MIZOUE Nobuya 鹿児島大学, 農学部, 准教授 (60390712)
• Project Period (FY): 2011-04-28 – 2015-03-31
• Keywords: スギ・ヒノキ / 樹木形質 / 品種 / 施業 / 地形 / 樹齢 / 気象 / 母材

Outline of Final Research Achievements

Aboveground net primary production of Cryptomeria japonica and Chamaecyparis obtusa plantations were estimated by measuring the biomass, growth and litterfall in the Kyushu Island. Effects of environmental conditions, plantation age, cultivar and forestry operations on the production were investigated. The relationship among above mentioned variables were also analysed. The aboveground net primary production of 140-year-old C. japonica plantation was comparable to that of an adjacent secondary forest, though the production was affected by previous thinning. A strong thinning affected the production of C. japonica plantation, though there was no difference in the production between medium and light thinning. There were more than 30% differences in tree height and growth of C. japonica among cultivars. A correlation was observed between tree growth and leaf nitrogen concentration among the cultivars.

Free Research Field

森林生態学