caa a22 4500 60622033X CHVBK 20210128101123.0 cr unu---uuuuu 210128e20150801xx s 000 0 eng 10.1007/s11104-015-2491-8 doi (NATIONALLICENCE)springer-10.1007/s11104-015-2491-8 Size-dependent morphological and chemical property of fine root litter decomposition [Elektronische Daten] [Naoki Makita, Ayumi Kawamura, Akira Osawa] Aims: To estimate cause-and-effect relationships of decomposition rates of fine root litter up to 2mm in diameter, we explored the relationships between mass loss rates and substrate litter properties with respect to chemical and morphological dynamics. Methods: Mass loss, nitrogen (N) concentration, specific root area (SRA), root tissue density (RTD), and their remaining proportions were measured for initial and residual fine roots of two diameter classes (<0.5 and 0.5-2mm) of Quercus serrata and Ilex pedunculosa in a temperate forest. Litterbags were sequentially collected after 1month of decomposition and then every 3months for 27months. Results: N concentration dynamics during decomposition showed a significant interaction between species and diameter, and there was a greater convergence between diameter classes for Q. serrata than for I. pedunculosa. The remaining area and volume of the two diameters changed during decomposition in both species, but the degree of change was somewhat different between the species. The remaining surface area and volume in I. pedunculosa roots showed greater differences between diameter classes compared with Q. serrata roots. Remaining mass was positively correlated with the remaining C concentration and surface area and was negatively correlated with the remaining tissue volume and N concentration, according to principal component analysis analysis. Conclusions: Differences in morphological and chemical properties between diameter sizes of two species could indicate differences in decomposition processes. Estimates of fine root decomposition rates are best obtained by a combination of biological and physicochemical species-specific processes. Springer International Publishing Switzerland, 2015 Degradation nationallicence Mass loss nationallicence Nitrogen nationallicence Root tissue density nationallicence Specific root area nationallicence Substrate quality nationallicence RTD : Root tissue density nationallicence SRA : Specific root area nationallicence Makita Naoki Kansai Research Center, Forestry and Forest Products Research Institute, 612-0855, Kyoto, Japan aut Kawamura Ayumi Graduate School of Agriculture, Kyoto University, 606-8502, Kyoto, Japan aut Osawa Akira Graduate School of Agriculture, Kyoto University, 606-8502, Kyoto, Japan aut Plant and Soil Springer International Publishing 393/1-2(2015-08-01), 283-295 0032-079X 393:1-2<283 2015 393 11104 https://doi.org/10.1007/s11104-015-2491-8 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11104-015-2491-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Makita Naoki Kansai Research Center, Forestry and Forest Products Research Institute, 612-0855, Kyoto, Japan aut NATIONALLICENCE 700 1- Kawamura Ayumi Graduate School of Agriculture, Kyoto University, 606-8502, Kyoto, Japan aut NATIONALLICENCE 700 1- Osawa Akira Graduate School of Agriculture, Kyoto University, 606-8502, Kyoto, Japan aut NATIONALLICENCE 773 0- Plant and Soil Springer International Publishing 393/1-2(2015-08-01), 283-295 0032-079X 393:1-2<283 2015 393 11104