caa a22 4500 606219412 CHVBK 20210128101118.0 cr unu---uuuuu 210128e20151001xx s 000 0 eng 10.1007/s11104-015-2621-3 doi (NATIONALLICENCE)springer-10.1007/s11104-015-2621-3 The chemical composition of native organic matter influences the response of bacterial community to input of biochar and fresh plant material [Elektronische Daten] [Congying Wang, Craig Anderson, Manuel Suárez-Abelenda, Tao Wang, Marta Camps-Arbestain, Riaz Ahmad, H. Herath] Aim: To investigate how the chemical composition of native organic matter of two contrasting soils varies with inputs of biochar and fresh material (including plant roots) and how these underlying changes influence microbial community structure. Methods: Corn stover (CS) and CS-derived biochars produced at 350°C and 550°C were applied at a dose of 7.2t C ha−1 to two contrasting soils—an Alfisol and an Andisol. After 295days of incubation, two undisturbed subsamples from each pot were taken: (i) in one, lucerne (Medicago sativa L.) was seeded (plant study, P) and (ii) in the other, the incubation was continued without the plants (respiration study, R); all subsamples were incubated for an additional 215days. Soils without amendments were used as controls. At the end of the incubation (510days), their bacterial community profiles were characterised using ARISA and the molecular composition of soil organic matter (SOM) was investigated by pyrolysis-GC/MS. Results: There were significant interactions between soil type, study type (P or R) and organic amendment. Organic amendments influenced overall SOM composition with microbial community response being mainly influenced by soil type but also strongly affected by the presence or absence of plants. For a specific soil type, ≥ 40% of total variation in bacterial community ordination could be explained by the molecular composition of SOM. Conclusions: The molecular composition of SOM is proposed as an important factor influencing the microbial response to organic amendments, including biochar. Springer International Publishing Switzerland, 2015 Pyrolysis-GC/MS nationallicence Molecular composition nationallicence Organic matter nationallicence Bacterial community profile nationallicence Organic amendments nationallicence Wang Congying New Zealand Biochar Research Centre, Institute of Agriculture and Environment, Private Bag 11222, Massey University, 4442, Palmerston North, New Zealand aut Anderson Craig The New Zealand Institute for Plant and Food Research, Private Bag 4704, 8140, Christchurch, New Zealand aut Suárez-Abelenda Manuel Departamento de Edafoloxía e Química Agrícola, Facultade de Bioloxía, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain aut Wang Tao New Zealand Biochar Research Centre, Institute of Agriculture and Environment, Private Bag 11222, Massey University, 4442, Palmerston North, New Zealand aut Camps-Arbestain Marta New Zealand Biochar Research Centre, Institute of Agriculture and Environment, Private Bag 11222, Massey University, 4442, Palmerston North, New Zealand aut Ahmad Riaz New Zealand Biochar Research Centre, Institute of Agriculture and Environment, Private Bag 11222, Massey University, 4442, Palmerston North, New Zealand aut Herath H. New Zealand Biochar Research Centre, Institute of Agriculture and Environment, Private Bag 11222, Massey University, 4442, Palmerston North, New Zealand aut Plant and Soil Springer International Publishing 395/1-2(2015-10-01), 87-104 0032-079X 395:1-2<87 2015 395 11104 https://doi.org/10.1007/s11104-015-2621-3 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/s11104-015-2621-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wang Congying New Zealand Biochar Research Centre, Institute of Agriculture and Environment, Private Bag 11222, Massey University, 4442, Palmerston North, New Zealand aut NATIONALLICENCE 700 1- Anderson Craig The New Zealand Institute for Plant and Food Research, Private Bag 4704, 8140, Christchurch, New Zealand aut NATIONALLICENCE 700 1- Suárez-Abelenda Manuel Departamento de Edafoloxía e Química Agrícola, Facultade de Bioloxía, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain aut NATIONALLICENCE 700 1- Wang Tao New Zealand Biochar Research Centre, Institute of Agriculture and Environment, Private Bag 11222, Massey University, 4442, Palmerston North, New Zealand aut NATIONALLICENCE 700 1- Camps-Arbestain Marta New Zealand Biochar Research Centre, Institute of Agriculture and Environment, Private Bag 11222, Massey University, 4442, Palmerston North, New Zealand aut NATIONALLICENCE 700 1- Ahmad Riaz New Zealand Biochar Research Centre, Institute of Agriculture and Environment, Private Bag 11222, Massey University, 4442, Palmerston North, New Zealand aut NATIONALLICENCE 700 1- Herath H. New Zealand Biochar Research Centre, Institute of Agriculture and Environment, Private Bag 11222, Massey University, 4442, Palmerston North, New Zealand aut NATIONALLICENCE 773 0- Plant and Soil Springer International Publishing 395/1-2(2015-10-01), 87-104 0032-079X 395:1-2<87 2015 395 11104