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Black (pyrogenic) carbon in soils and waters: a fragile data basis extensively interpreted

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Black (pyrogenic) carbon in soils and waters: a fragile data basis extensively interpreted

In: Chemical and Biological Technologies in Agriculture, 2019, Vol.6(1), pp.1-8
Autor: Gerke, Jörg
Ort, Verlag, Jahr: Cham, Springer International Publishing, 2019
Kollektion: SpringerLink Open Access
Erscheinungsform: article

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Autor:Gerke, Jörg
Titel:Black (pyrogenic) carbon in soils and waters: a fragile data basis extensively interpreted
Ort:Cham
Verlag:Springer International Publishing
Jahr:2019
Sprache:eng
Zusammenfassung:Black (pyrogenic) carbon (BC) has its origin in incomplete combustion of organic matter. It is considered to be a stable fraction of soil organic carbon (SOC) accounting for a great proportion of SOC in many soils. The aim of this article is to verify the reliability of the three most widely applied methods to determine BC in soils: the benzene polycarboxylic acid (BPCA) method, the UV/NMR method and the 13 CNMR method. All these methods strongly overestimate BC in soil and dissolved BC in waters. The main reason for the overestimation can be attributed to the fact that these three methods measure the polycyclic aromatic carbon (PAC) present in BC. However, PAC structures are also a component of humic substances so that a part of humic C is measured as BC. It can be concluded that the importance of BC in soil and waters is strongly overestimated and should be critically reevaluated.
Kollektion:SpringerLink Open Access
In:Chemical and Biological Technologies in Agriculture, 2019, Vol.6(1), pp.1-8
Primo Volltext:fulltext_linktorsrc
primo lizenzfrei:free_for_read
Lizenzfreie URL:http://dx.doi.org/10.1186/s40538-019-0151-6