Atmospheric deposition and interactions with Pinus pumila Regal canopy on Mount Tateyama in the Northern Japanese Alps

Yoshitoshi Uehara, Atsushi Kume, Masaaki Chiwa, Hideharu Honoki, Jing Zhang, Koichi Watanabe

研究成果: Contribution to journalArticle査読

13 被引用数 (Scopus)

抄録

To estimate the impact of atmospheric deposition on alpine ecosystems, we evaluated the interactions between atmospheric deposition and the Pinus pumila canopy close to the summit of Mount Tateyama, central Japan. We analyzed the chemical characteristics of rain, fog, and throughfall under the canopy in the summertime for 5 years. The concentrations of inorganic nitrogen and sulfate in precipitation at the summit (2839 m a.s.l.) were lower than at the base (13 m a.s.l.), but the total amounts deposited tended to be larger, because the precipitation was greater at the summit and highly concentrated fog water was deposited on the pine canopy. Large fluctuations in the quality and quantity of deposition were due to interannual variations in the meteorological conditions. About 80% of NO3 - -N and NH4 +-N (0.40 and 0.47 kg ha-1 month-1) from rain and fog were retained in the P. pumila canopy, and contributions from fog were twice those from rain. Considerable amounts of K+, Mg2+, and Ca2+ ions (0.97, 0.13, and 0.13 kg ha-1 month-1) were leached out from the canopy to the soil as throughfall. The leaching did not increase with rainfall, but increased as the duration of the fog and dew increase.

本文言語英語
ページ(範囲)389-399
ページ数11
ジャーナルArctic, Antarctic, and Alpine Research
47
2
DOI
出版ステータス出版済み - 5 1 2015

All Science Journal Classification (ASJC) codes

  • 地球変動および惑星変動
  • 生態、進化、行動および分類学
  • 地表過程

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