. "S" . "364" . "Fine-root dynamics in sugi (Cryptomeria japonica) under manipulated soil nitrogen conditions" . "Noguchi, Kyotaro" . "000314722800014" . "1"^^ . "Sakata, Tadashi" . . . "Fine-root dynamics in sugi (Cryptomeria japonica) under manipulated soil nitrogen conditions"@en . . . "75115" . "41320" . . "Diameter, Disappearance, Elongation, Fertilization, Minirhizotron, Seasonal Change"@en . . "Takahashi, Masamichi" . . "6"^^ . "US - Spojen\u00E9 st\u00E1ty americk\u00E9" . . "Nagakura, Junko" . "Fine-root dynamics in sugi (Cryptomeria japonica) under manipulated soil nitrogen conditions" . . . . "RIV/60460709:41320/13:61804!RIV14-MSM-41320___" . "RIV/60460709:41320/13:61804" . "0032-079X" . . "Kaneko, Shinji" . . . "[4F4CB8488C3A]" . "1-2" . "Nitrogen deposition affect fine-root dynamics, a key factor in forest carbon and nutrient dynamics. This study aimed to elucidate the effects of increased soil inorganic nitrogen (N) levels on the fine-root dynamics of Cryptomeria japonica, which is tolerant to excess N load. An ammonium nitrate solution (28 kg ha(-1) month(-1)) was applied for 3 years to plots (1 m x 2 m) in a C. japonica plantation. The elongation and disappearance of the fine roots were examined using the minirhizotron technique. The N fertilization increased soil inorganic N content and lowered the soil pH. Fine-root elongation rates increased with fertilization, whereas patterns of their seasonal changes were not affected. The ratio of cumulative disappearance to cumulative elongation of fine roots was lower in the N-fertilized plots than in the control plots. The mean diameter of the fine roots was not affected by N fertilization. Our results suggest that C. japonica can respond to increased levels of soil inorganic N by"@en . . "Konopka, Bohdan" . . "11"^^ . "Plant and Soil" . "Fine-root dynamics in sugi (Cryptomeria japonica) under manipulated soil nitrogen conditions"@en . . "Nitrogen deposition affect fine-root dynamics, a key factor in forest carbon and nutrient dynamics. This study aimed to elucidate the effects of increased soil inorganic nitrogen (N) levels on the fine-root dynamics of Cryptomeria japonica, which is tolerant to excess N load. An ammonium nitrate solution (28 kg ha(-1) month(-1)) was applied for 3 years to plots (1 m x 2 m) in a C. japonica plantation. The elongation and disappearance of the fine roots were examined using the minirhizotron technique. The N fertilization increased soil inorganic N content and lowered the soil pH. Fine-root elongation rates increased with fertilization, whereas patterns of their seasonal changes were not affected. The ratio of cumulative disappearance to cumulative elongation of fine roots was lower in the N-fertilized plots than in the control plots. The mean diameter of the fine roots was not affected by N fertilization. Our results suggest that C. japonica can respond to increased levels of soil inorganic N by" .