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Influence of soil properties on the heartwood colour of Juglans mandshurica var. sachalinensis in a cool temperate forest

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Title: Influence of soil properties on the heartwood colour of Juglans mandshurica var. sachalinensis in a cool temperate forest
Authors: Makoto, Kobayashi Browse this author →KAKEN DB
Susloparova, Elizaveta Browse this author
Tsuyama, Ikutaro Browse this author →KAKEN DB
Shimase, Takuya Browse this author →KAKEN DB
Nakaba, Satoshi Browse this author →KAKEN DB
Takahashi, Naoki Browse this author
Yoshida, Toshiya Browse this author →KAKEN DB
Keywords: Soil nutrients
Heartwood colour
Ecosystem service
Local timber production
Issue Date: 19-Jul-2021
Publisher: Springer
Journal Title: Journal of wood science
Volume: 67
Issue: 1
Start Page: 49
Publisher DOI: 10.1186/s10086-021-01981-9
Abstract: Heartwood colour is often an important factor in determining timber prices. However, the determinants of intraspecific variation in heartwood colour, which is useful information for sustainable wood marketing, are little understood, especially at the local scale in cool temperate forests. Because heartwood is produced as a secondary compound and photosynthesis is regulated by nitrogen (N) in cool temperate forests, we hypothesized that (1) soil conditions determine heartwood colour even at a local scale within a tree species and (2) N, specifically, can be an important driver of the intraspecific variation in heartwood colour in the trees of cool temperate forests. To test these hypotheses, we investigated the relationship between the colour values (luminescence, redness, and yellowness) of heartwood from Juglans mandshurica var. sachalinensis and the soil parameters in a cool temperate forest. Among the soil properties, not soil N but soil magnesium (Mg) contents alone had a significant influence on the redness and yellowness of the heartwood. Higher soil Mg contents resulted in increased redness and yellowness of the heartwood in our study, probably due to the increase in phenolics and the colouring of the tannins in the heartwood with Mg. Our results indicate that even at a local scale, soil condition can determine the intraspecific variation in heartwood colour and that forest managers can utilize edaphic information to predict heartwood colour for timber marketing.
Type: article
Appears in Collections:北方生物圏フィールド科学センター (Field Science Center for Northern Biosphere) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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