Ten-year long-term organic fertilization enhances carbon sequestration and calcium-mediated stabilization of aggregate-associated organic carbon in a reclaimed Cambisol

• Published in: Geoderma Vol. 355; p. 113880
• Main Authors: Huang, Xiaolei, Jia, Zhixin, Guo, Junjie, Li, Tingliang, Sun, Dasheng, Meng, Huisheng, Yu, Guanghui, He, Xinhua, Ran, Wei, Zhang, Shusheng, Hong, Jianping, Shen, Qirong
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.12.2019
• Subjects: CaCO3; calcareous soils; Calcaric Cambisol; calcium; calcium carbonate; Cambisols; Carbon sequestration; China; clay; clay fraction; composted manure; exchangeable calcium; fertilizer application; fractionation; long term experiments; Macroaggregates; Microaggregates; mineral fertilizers; mineralization; poultry manure; reclaimed soils; sieving; silt; soil aggregation; soil amendments; soil depth; soil organic carbon; Specific carbon mineralization rate; China; Specific carbon mineralization rate; CaCO3; Carbon sequestration; Calcaric Cambisol; Microaggregates; Macroaggregates

Soils play a vital role in the global carbon (C) cycle, yet little is known about the calcium (Ca)-mediated stabilization of soil organic carbon (SOC) in calcareous soils. With wet sieving, density fractionation and an incubation experiment from field soils, we investigated the effects of long-term...