九州・沖縄地方の大気–植物–土壌系における硫黄同位体の動態  [in Japanese] Sulfur isotopic dynamics in the atmosphere-plant-soil system on the islands of Kyushu and Okinawa, Japan  [in Japanese]

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Author(s)

Abstract

We measured the δ<sup>34</sup>S values of plant leaves and of water-soluble SO<sub>4</sub><sup>2-</sup> in soil collected on the islands of Kyushu and Okinawa, Japan, and clarified the pathways of sulfur from the atmosphere to the plant-soil system by comparing the δ<sup>34</sup>S values with those of atmospheric sulfur. Most of the water-soluble SO<sub>4</sub><sup>2-</sup> in the soil was considered to derive from atmospheric sulfur by dry and wet deposition and it was assumed that the amounts of sulfur by dry deposition would be comparable to those by wet deposition. The δ<sup>34</sup>S values of water-soluble SO<sub>4</sub><sup>2-</sup> in the soil differed from site to site. This was attributed to the variability of (1) the δ<sup>34</sup>S values of sulfur by dry and wet deposition and (2) the ratio of dry deposition to wet deposition at each site. The δ<sup>34</sup>S values of the plant leaves at sites other than the town of Kokonoe were fairly close to those of water-soluble SO<sub>4</sub><sup>2-</sup> in the soil, suggesting that the plants absorb sulfur mainly as watersoluble SO<sub>4</sub><sup>2-</sup> from the soil. On the other hand, the δ<sup>34</sup>S values of the plant leaves at Kokonoe were considerably lower than those of water-soluble SO<sub>4</sub><sup>2-</sup> in the soil and were close to those of atmospheric SO<sub>2</sub>. The plants at Kokonoe were considered to depend on atmospheric SO<sub>2</sub> for sulfur, which is essential for their growth.

Journal

  • Chikyukagaku

    Chikyukagaku 36(3), 127-135, 2002

    The Geochemical Society of Japan

References:  23

Codes

  • NII Article ID (NAID)
    110008680040
  • NII NACSIS-CAT ID (NCID)
    AN00141280
  • Text Lang
    JPN
  • Article Type
    ART
  • ISSN
    0386-4073
  • NDL Article ID
    6263991
  • NDL Source Classification
    ZM41(科学技術--地球科学)
  • NDL Call No.
    Z15-645
  • Data Source
    CJP  NDL  NII-ELS  J-STAGE 
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