Spatial and seasonal changes in soluble ions and chlorophyll a concentration on the surface of snow pack in Mt. Tateyama, Japan

• TAKEUCHI Nozomu

  Graduate School of Science, Chiba University

• SUGIYAMA Ryo

  Graduate School of Science, Chiba University

Bibliographic Information

Other Title

• 立山室堂平周辺の積雪表面の化学成分とクロロフィル濃度の空間分布と季節変化
• タテヤマシツドウ ヘイ シュウヘン ノ セキセツ ヒョウメン ノ カガク セイブン ト クロロフィル ノウド ノ クウカン ブンプ ト キセツ ヘンカ

Abstract

We mapped spatial and seasonal changes in the concentrations of soluble ions and chlorophyll-a on the snowpack surface of Mt. Tateyama, Japan to understand the factors determining the chemical characteristics of the snow surface and their effects on snow algal growth. The study examined sites at elevations of 2300-2700m above sea level, from April to August 2017. In April, before surface snow had melted, concentrations of soluble ions were found to be higher on the surface of the southern parts of the study area compared with concentrations in the northern parts. By contrast, water-stable isotope ratios, Cl− concentrations, and pH values showed different spatial variations in a small valley of the Jigokudani area where an active volcanic fumarole is located. After May, while the concentrations of most of the ions decreased, Cl− and SO4 2− showed relatively higher concentrations near the Jigokudani valley. The sulfurstable isotope ratio of SO4 2− was distinctively higher in the area, suggesting that a part of SO4 2− was derived from a fumarole of the Jigokudani valley. Although chlorophyll-a concentrations greatly increased after July, there was no significant relationship between the spatial distribution of chlorophyll-a concentration and those of other chemical solutes. These results suggest that the chemical characteristics are mostly influenced by distant aerosols supplied by fog water from the south, and partially influenced by the volcanic gas from the fumarole. It was also noted that their spatial patterns change largely according to season; however, these spatial patterns are unlikely to affect snow algal growth.

Journal

• Journal of the Japanese Society of Snow and Ice

  Journal of the Japanese Society of Snow and Ice 81 (5), 231-247, 2019

  The Japanese Society of Snow and Ice

Keywords

• Mt. Tateyama
• snow chemistry
• volcanic gas
• snow algae
• Chlorophyll a

Details

• CRID: 1391975276372862208
• NII Article ID: 130007927784
• NII Book ID: AN00131221
• DOI: 10.5331/seppyo.81.5_231
• ISSN: 18836267
• ISSN: 03731006
• NDL BIB ID: 029964359
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I029964359
• Web Site: https://www.jstage.jst.go.jp/article/seppyo/81/5/81_231/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed