Shinya Hiramatsu
Shinshu University
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Publication
Featured researches published by Shinya Hiramatsu.
Science of The Total Environment | 2008
Zhao Zhang; Takehiko Fukushima; Peijun Shi; Fulu Tao; Yuichi Onda; Takashi Gomi; Shigeru Mizugaki; Yuko Asano; Ken'ichirou Kosugi; Shinya Hiramatsu; Hikaru Kitahara; Koichiro Kuraji; Tomomi Terajima; Kazuo Matsushige
A comprehensive investigation on all dissolved nitrogen and phosphorus components at both local and regional scales in the headwaters from forested watersheds is valuable to improve our understanding of the factors controlling water quality. Here, we investigated the baseflow concentrations of dissolved nitrogen and phosphorus components, N:P ratio, and their associations with region and vegetation type in forested headwaters in fives regions of Japan. We found that inorganic nitrogen and phosphorus were the dominant components in the 26 temperate forested streams, rather than organic forms. There were significant positive correlations between the concentrations of N and P components. Furthermore, the regional patterns of the concentrations of nitrate, dissolved inorganic P (DIP), and dissolved total N (DTN) and P (DTP) were similar. Our results suggest that the regional patterns of the concentrations of N and P components should be related to the regional atmospheric deposition of both N and P nutrients. We also found that the nitrate and DTN concentrations were higher in man-made evergreen conifer (EC) than those in the natural deciduous broadleaf (DB). In contrast, the DIP and DTP concentrations in EC were lower than those in DB. The uniformly higher N:P ratio in EC- than in DB-forested streams for each region suggest that EC-forested streams could be more affected by P-limited than DB-forested streams when N inputs from atmospheric sources increased.
Hydrological Processes | 2008
Shigeru Mizugaki; Yuichi Onda; Taijiro Fukuyama; Satoko Koga; Hiroki Asai; Shinya Hiramatsu
Geoderma | 2010
Yoshifumi Wakiyama; Yuichi Onda; Shigeru Mizugaki; Hiroki Asai; Shinya Hiramatsu
Science of The Total Environment | 2008
Zhao Zhang; Takehiko Fukushima; Yuichi Onda; Shigeru Mizugaki; Takashi Gomi; Ken'ichirou Kosugi; Shinya Hiramatsu; Hikaru Kitahara; Koichiro Kuraji; Tomomi Terajima; Kazuo Matsushige; Fulu Tao
Geoderma | 2013
Mengistu T. Teramage; Yuichi Onda; Hiroaki Kato; Yoshifumi Wakiyama; Shigeru Mizugaki; Shinya Hiramatsu
Limnology | 2009
Luki Subehi; Takehiko Fukushima; Yuichi Onda; Shigeru Mizugaki; Takashi Gomi; Tomomi Terajima; Ken'ichirou Kosugi; Shinya Hiramatsu; Hikaru Kitahara; Koichiro Kuraji; Noriatsu Ozaki
Limnology | 2010
Luki Subehi; Takehiko Fukushima; Yuichi Onda; Shigeru Mizugaki; Takashi Gomi; Ken'ichirou Kosugi; Shinya Hiramatsu; Hikaru Kitahara; Koichiro Kuraji; Tomomi Terajima
Journal of The Japanese Forest Society | 2009
Shusuke Miyata; Yuichi Onda; Takashi Gomi; Shigeru Mizugaki; Hiroaki Asai; Tomonori Hirano; Taijiro Fukuyama; Ken'ichirou Kosugi; Tomomi Terajima; Shinya Hiramatsu
Catena | 2008
Zhao Zhang; Takehiko Fukushima; Peijun Shi; Fulu Tao; Yuichi Onda; Takashi Gomi; Shigeru Mizugaki; Yuko Asano; Ken'ichirou Kosugi; Shinya Hiramatsu; Hikaru Kitahara; Koichiro Kuraji; Tomomi Terajima; Kazuo Matsushige
Journal of The Japan Landslide Society | 2017
Shoichi Uemura; Yasuyuki Ujihashi; Shinya Hiramatsu; Hiroto Suzuki