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Statements

Subject Item
n2:RIV%2F60460709%3A41320%2F13%3A61804%21RIV14-MSM-41320___
rdf:type
n10:Vysledek skos:Concept
dcterms:description
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 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
dcterms:title
Fine-root dynamics in sugi (Cryptomeria japonica) under manipulated soil nitrogen conditions Fine-root dynamics in sugi (Cryptomeria japonica) under manipulated soil nitrogen conditions
skos:prefLabel
Fine-root dynamics in sugi (Cryptomeria japonica) under manipulated soil nitrogen conditions Fine-root dynamics in sugi (Cryptomeria japonica) under manipulated soil nitrogen conditions
skos:notation
RIV/60460709:41320/13:61804!RIV14-MSM-41320___
n10:predkladatel
n17:orjk%3A41320
n3:aktivita
n6:S
n3:aktivity
S
n3:cisloPeriodika
1-2
n3:dodaniDat
n9:2014
n3:domaciTvurceVysledku
n7:2117673
n3:druhVysledku
n12:J
n3:duvernostUdaju
n4:S
n3:entitaPredkladatele
n13:predkladatel
n3:idSjednocenehoVysledku
75115
n3:idVysledku
RIV/60460709:41320/13:61804
n3:jazykVysledku
n15:eng
n3:klicovaSlova
Diameter, Disappearance, Elongation, Fertilization, Minirhizotron, Seasonal Change
n3:klicoveSlovo
n14:Disappearance n14:Diameter n14:Elongation n14:Fertilization n14:Seasonal%20Change n14:Minirhizotron
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[4F4CB8488C3A]
n3:nazevZdroje
Plant and Soil
n3:obor
n18:GK
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
6
n3:rokUplatneniVysledku
n9:2013
n3:svazekPeriodika
364
n3:tvurceVysledku
Noguchi, Kyotaro Sakata, Tadashi Takahashi, Masamichi Nagakura, Junko Kaneko, Shinji Konopka, Bohdan
n3:wos
000314722800014
s:issn
0032-079X
s:numberOfPages
11
n11:organizacniJednotka
41320