Biometric-based estimation of net ecosystem production in a mature Japanese cedar (Cryptomeria japonica) plantation beneath a flux tower

Yuichiro Yashiro, Na Yeon M Lee, Toshiyuki Ohtsuka, Yoko Shizu, Taku M. Saitoh, Hiroshi Koizumi

    Research output: Contribution to journalArticle

    15 Citations (Scopus)

    Abstract

    Quantification of carbon budgets and cycling in Japanese cedar (Cryptomeria japonica D. Don) plantations is essential for understanding forest functions in Japan because these plantations occupy about 20% of the total forested area. We conducted a biometric estimate of net ecosystem production (NEP) in a mature Japanese cedar plantation beneath a flux tower over a 4-year period. Net primary production (NPP) was 7.9 Mg C ha-1 year-1 and consisted mainly of tree biomass increment and aboveground litter production. Respiration was calculated as 6.8 (soil) and 3.3 (root) Mg C ha-1 year-1. Thus, NEP in the plantation was 4.3 Mg C ha-1 year-1. In agreement with the tower-based flux findings, this result suggests that the Japanese cedar plantation was a strong carbon sink. The biometric-based NEP was higher among most other types of Japanese forests studied. Carbon sequestration in the mature plantation was characterized by a larger increment in tree biomass and lower mortality than in natural forests. Land-use change from natural forest to Japanese cedar plantation might, therefore, stimulate carbon sequestration and change the carbon allocation of NPP from an increment in coarse woody debris to an increase in tree biomass.

    Original languageEnglish
    Pages (from-to)463-472
    Number of pages10
    JournalJournal of Plant Research
    Volume123
    Issue number4
    DOIs
    Publication statusPublished - 2010

    Fingerprint

    net ecosystem production
    Cryptomeria japonica
    biometry
    plantations
    carbon sequestration
    primary productivity
    biomass
    coarse woody debris
    carbon
    carbon sinks
    land use change
    Japan

    Keywords

    • Carbon sequestration
    • Japanese cedar plantation
    • Net ecosystem production

    ASJC Scopus subject areas

    • Plant Science

    Cite this

    Biometric-based estimation of net ecosystem production in a mature Japanese cedar (Cryptomeria japonica) plantation beneath a flux tower. / Yashiro, Yuichiro; Lee, Na Yeon M; Ohtsuka, Toshiyuki; Shizu, Yoko; Saitoh, Taku M.; Koizumi, Hiroshi.

    In: Journal of Plant Research, Vol. 123, No. 4, 2010, p. 463-472.

    Research output: Contribution to journalArticle

    Yashiro, Yuichiro ; Lee, Na Yeon M ; Ohtsuka, Toshiyuki ; Shizu, Yoko ; Saitoh, Taku M. ; Koizumi, Hiroshi. / Biometric-based estimation of net ecosystem production in a mature Japanese cedar (Cryptomeria japonica) plantation beneath a flux tower. In: Journal of Plant Research. 2010 ; Vol. 123, No. 4. pp. 463-472.
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