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Leaf stoichiometry of deciduous tree species in different soils exposed to free-air O₃ enrichment over two growing seasons

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Title: Leaf stoichiometry of deciduous tree species in different soils exposed to free-air O₃ enrichment over two growing seasons
Authors: Shi, Cong Browse this author
Watanabe, Toshihiro Browse this author →KAKEN DB
Koike, Takayoshi Browse this author →KAKEN DB
Keywords: Stoichiometry
Foliar nutrients
Free-air ozone
Volcanic ash soil
Serpentine soil
Issue Date: Jun-2017
Publisher: Elsevier
Journal Title: Environmental and experimental botany
Volume: 138
Start Page: 148
End Page: 163
Publisher DOI: 10.1016/j.envexpbot.2017.03.012
Abstract: The effects of elevated O-3 in different soil conditions on foliar elements stoichiometry were investigated in 3 native tree species with a free-air enrichment system in northern Japan over two growing seasons. Essential elements (Mg, K, Ca, Mn, Fe, Ni, P, N) and two non-essential elements (Cr, Al) were analyzed in leaf samples obtained from 6 different treatments of O-3 and soils at 5 collection times from 2014 to 2015. In this study, relationships among the foliar elements within each species were investigated and negative correlations between foliar N and the metal elements were observed in birch (Betula platyphylla var. japonica). From the differences of foliar contents as well as their retranslocation rate, beech (Fagus crenata) with determinate shoot growth pattern were rather more sensitive to O-3 stress on foliar contents, meanwhile oak (Quercus mongolica var. crispula) was possibly susceptible to O-3 on dynamics of immobile elements. Soil nutrients have distinct impacts on retranslocation rate of K, Fe, and P. Principal component analysis revealed that Mn and K can become indices in assessing the O-3 and soil effects in both short and long "term monitoring of the growth of these tree species. Our findings are essential in further comprehension to nutrient conservation mechanism in the nutrient dynamics of cool-temperate forests.
Rights: © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Type: article (author version)
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 小池 孝良

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