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| Group Leader | Shuhei AIZAWA Nitrogen mineralization; Soil chemistry; Stream water chemistry |
| Senior Researcher | Tadashi SAKATA Soil gas dynamics; Soil organic matter |
| Senior Researcher | Eriko ITO Site evaluation; Nitrogen cycling; Seasonal tropical forests; GIS, Remote sensing; Ecological modelling |
| Group Leader | Keizo HIRAI Nitrogen mineralization; Nutrient cycling; Site productivity |
| Researcher | Tsuyoshi YAMADA Biogeochemistry; Site properties; Soil hardness |
| Researcher | Kenji ONO Forest soil; Recalcitrant organic matter; Decomposition; Humification |
| Senior Researcher | Toru OKAMOTO Stream water chemistry; Environmental changes |
| Group Leader | Takeo MIZOGUCHI Fine root dynamics; Mycorrhiza; Nutrient absorption |
| Senior Researcher | Yasuhiro HIRANO Fine root; Indicator; Root morphology; Root physiology; Soil acidification |
| Senior Researcher | Toko TANIKAWA Soil chemistry; Sulfur cycling; Nutrient dynamics; Soil acidification; Biogeochemistry |
| Group Leader | Hisao SAKAI Soil carbon dynamics model; Soil clasification |
| Senior Researcher | Yoshiki SHINOMIYA Subsurface flow; Storm event; Nutrient export; Streamwater chemistry; Soil water storage |
| Senior Researcher | Kyotaro NOGUCHI Fine root turnover; Plant nutrition; Nutrient dynamics |
| Group Leader | Yasuhiro OHNUKI Hydrogeomorphology; Soil physics; Soil erosion; Soil layer; Water storage |
| Senior Researcher | Hidetoshi SHIGENAGA Tree physiology; Plant nutrition; Water relation; Forest decline; Cryptomeria japonica |
| Researcher | Tatsuya TSURITA Forest soil; Soil physics; Water flux in forest soil |
| Principal Research Coordinator | Masaki KATO |
| Director, Tama Forest Science Garden | Akio AKAMA |
| Head, Research Planning Division | Masamichi TAKAHASHI |
| Head, Research Information Division | Makoto ARAKI |
| Research Coordinator, Shikoku Research Center | Atsushi TORII |

Location of the Institute and Research Centers
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