Marked difference of rainfall partitioning in an unmanaged coniferous plantation with high stand density

Seonghun Jeong, Kyoichi Otsuki, Akio Inoue, Yoshinori Shinohara

Research output: Contribution to journalArticle

Abstract

Many coniferous plantations in Japan have not been managed because of the impact of economic recession on forestry. Few studies have examined rainfall partitioning (RP) in these unmanaged plantations with a stand density ≥ 2500 stems ha−1, which is a typical planting density in Japan. The aims of this study were to examine RP in an unmanaged coniferous plantation and to clarify the differences in RP with other coniferous plantations in Japan. We recorded gross rainfall (GR), throughfall (TF) and stemflow (SF) for one year in an unmanaged 32-year-old Japanese cypress (Chamaecyparis obtusa Endl.) plantation with a high stand density (2500 trees ha−1) in Fukuoka, Japan. The GR, TF and SF were 2248.6 mm, 1068.4 mm (47.5% of GR) and 425.3 mm (18.9% of GR), respectively, which resulted in interception loss (IL) of 754.9 mm (33.6% of GR). The present data were compared with the published data for all components of RP from 36 previous studies of coniferous plantations in Japan. Compared with these plantations, the present ratio of TF/GR was the lowest and the SF/GR was the highest, resulting in the highest IL/GR. This study highlights that not only TF and IL, but also SF account for a high proportion of RP in unmanaged coniferous plantations.

Original languageEnglish
Pages (from-to)107-114
Number of pages8
JournalJournal of Forest Research
Volume24
Issue number2
DOIs
Publication statusPublished - Mar 4 2019

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stand density
plantation
partitioning
plantations
rain
rainfall
stemflow
throughfall
Japan
interception
economic recession
Chamaecyparis obtusa
forestry
stem
planting

All Science Journal Classification (ASJC) codes

  • Forestry

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Marked difference of rainfall partitioning in an unmanaged coniferous plantation with high stand density. / Jeong, Seonghun; Otsuki, Kyoichi; Inoue, Akio; Shinohara, Yoshinori.

In: Journal of Forest Research, Vol. 24, No. 2, 04.03.2019, p. 107-114.

Research output: Contribution to journalArticle

Jeong, Seonghun ; Otsuki, Kyoichi ; Inoue, Akio ; Shinohara, Yoshinori. / Marked difference of rainfall partitioning in an unmanaged coniferous plantation with high stand density. In: Journal of Forest Research. 2019 ; Vol. 24, No. 2. pp. 107-114.
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