Biochar reduced the mineralization of native and added soil organic carbon: evidence of negative priming and enhanced microbial carbon use efficiency

被引：0
作者：
Subin Kalu
Aino Seppänen
Kevin Z. Mganga
Outi-Maaria Sietiö
Bruno Glaser
Kristiina Karhu
机构：
[1] University of Helsinki,Faculty of Agriculture and Forestry
[2] Helsinki Institute of Sustainability Science (HELSUS),Department of Crop and Soil Sciences
[3] North Carolina State University,Copernicus Institute of Sustainable Development
[4] Utrecht University,HAMK Bio Research Unit
[5] Häme University of Applied Sciences,Institute of Agricultural and Nutritional Sciences, Department of Soil Biogeochemistry
[6] Martin Luther University Halle-Wittenberg,undefined
[7] Helsinki Institute of Life Science (HiLIFE),undefined
来源：
Biochar | / 6卷
关键词：
Biochar; Carbon sequestration; Carbon use efficiency; C-labelling; Soil microbial necromass; Priming effect;
D O I：
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学科分类号：
摘要：
Biochar showed additional C storage ability by preserving SOC from mineralization (negative priming) and stabilizing added labile organic substrateBiochar (30 Mg ha−1) significantly increased microbial carbon use efficiencyBiochar increased the formation of stable microbial residues (necromass) from a labile substrate (glucose) added to soil, as indicated by 13C recovery in amino sugars
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