Hirohiko Nagano

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Speaker, Author, Co-Author

One-off sessions

[J] Oral
| A (Atmospheric and Hydrospheric Sciences )
| A-CG Complex & General

[A-CG54] Biogeochemical cycles in Land Ecosystem

[ACG54-09] Soil organic carbon and its water-extractable fraction in volcanic ash soils in a Japanese temperate forest: relations to phosphate absorption coefficient and their implication

*Hirohiko Nagano¹, Sota Tanaka¹, Mariko Atarashi-Andoh¹, Jun Koarashi¹ (1.Japan Atomic Energy Agency)

One-off sessions

[J] Poster
| M (Multidisciplinary and Interdisciplinary)
| M-IS Intersection

[M-IS25] Biogeochemistry

[MIS25-P04] Nitrate contamination of mountainous headwater streams from adjacent agricultural and pasture lands beyond the watershed boundary in eastern Hokkaido, Japan

*Keitaro Fukushima¹, Kenta Iwasaki², Yoshiya Oda³, Masaru Sakai⁴, Yuji Onishi¹, Keisuke Koba¹, Genki Katata⁵, Takashi Yamaguchi², Tomohiro Kubota⁵, Hirohiko Nagano⁶, Makoto Watanabe⁷, Jun Koarashi⁶ (1.Kyoto University, 2.Hokkaido Research Organization, 3.Tokyo Metropolitan University, 4.Chuo University, 5.Ibaraki University, 6.Japan Atomic Energy Agency, 7.Tokyo University of Agriculture and Technology)