ヒノキ葉から放出されるモノテルペンの日変化と季節変化 Diurnal and Seasonal Variations of Monoterpene Emissions from Leaves of Chamaecyparis obtusa

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Biogenic volatile organic compounds (BVOCs) emitted by plants play an important role in the atmospheric chemistry of the troposphere. We conducted f ield measurements of monoterpene emissions from leaves of <I>Chamaecyparis obtusa</I>, which is one of the major tree species in Japan. Diurnal and seasonal variations of monoterpene emissions from <I>C. obtusa</I> were measured at the Kiryu Experimental Watershed (KEW) at 34°58′ N, 135°59′ E in Shiga Prefecture, central Japan. In August and October 2006 and in January and April 2007, the monoterpene emission rate (<I>E</I>), together with the leaf temperature, was measured using branch enclosure methods for a branch of two trees. The obtained data sets revealed that <I>E</I> highly correlated with leaf temperature throughout the seasons. The basal emission rate (<I>E<SUB>S</SUB></I>) under the standard conditions of 30°C, calculated using a widely used emission algorithm, ranged from 0.088 and 4.126 μg g<SUP>-1</SUP> h<SUP>-1</SUP>. The estimated <I>E</I> values were consistent with the measured <I>E</I> values within a root-mean-square (RMS) error of 0.005-0.525 μg g<SUP>-1</SUP> h<SUP>-1</SUP>, suggesting that the emission model can be used to determine the monoterpene emission responses of <I>C. obtusa</I> to temperature. However, the <I>E<SUB>S</SUB></I> values were significantly different between the trees and also different between seasons, indicating that a representative <I>E<SUB>S</SUB></I> value must be obtained from more data sets using more branches and trees.

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  • Eco-engineering = 生態工学  

    Eco-engineering = 生態工学 20(2), 89-95, 2008-04-30 

    The Society of Eco-Engineering

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各種コード

  • NII論文ID(NAID)
    10021125062
  • NII書誌ID(NCID)
    AA12005685
  • 本文言語コード
    JPN
  • 資料種別
    SHO
  • ISSN
    13470485
  • NDL 記事登録ID
    9503994
  • NDL 雑誌分類
    ZM33(科学技術--宇宙科学) // ZR1(科学技術--生物学)
  • NDL 請求記号
    Z15-644
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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