000844604 001__ 844604 000844604 005__ 20210129233010.0 000844604 0247_ $$2doi$$a10.1016/j.soilbio.2018.01.017 000844604 0247_ $$2ISSN$$a0038-0717 000844604 0247_ $$2ISSN$$a1879-3428 000844604 0247_ $$2WOS$$aWOS:000430031900026 000844604 0247_ $$2Handle$$a2128/18654 000844604 0247_ $$2altmetric$$aaltmetric:34815942 000844604 037__ $$aFZJ-2018-02008 000844604 082__ $$a570 000844604 1001_ $$0P:(DE-Juel1)129553$$aWeihermüller, L.$$b0$$eCorresponding author$$ufzj 000844604 245__ $$aProblems associated to kinetic fitting of incubation data 000844604 260__ $$aAmsterdam [u.a.]$$bElsevier Science$$c2018 000844604 3367_ $$2DRIVER$$aarticle 000844604 3367_ $$2DataCite$$aOutput Types/Journal article 000844604 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1527082224_20926 000844604 3367_ $$2BibTeX$$aARTICLE 000844604 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000844604 3367_ $$00$$2EndNote$$aJournal Article 000844604 520__ $$aIncubation is a classical laboratory experiment to gain information about the carbon turnover from soils under different treatments (e.g., temperatures, water content, nutrient supply), amendments (e.g. biochar, straw, compost), or from different locations (e.g. topsoil vs. subsoil). Classically, the measured data are represented as cumulated CO2 flux or as % total organic carbon (TOC) mineralized and from those data kinetic parameters are often derived using models of different complexity. Based on the conceptual idea that more than one C-pool exists, especially in soil mixtures, the simple single-pool model is more and more substituted by double-pool models to describe these data. Hereby, the model will be iteratively fitted to the data to obtain the pool sizes and rate constants of the pools (slow and fast). In the work presented, we show that the fitting of double-pool models will lead to different results in the pool sizes and kinetic parameters, depending on the fitting approach used. Secondly, general problems of over-fitting and the ill-posed problem are discussed, whereby it will be shown, that especially the estimation of the rate constant for the slow pool is highly uncertain. Based on these general findings and problems in the fitting procedure, fitting results reported in literature were analyzed. The meta-analysis indicates that only a small number of reported fits are apparently not well fitted, whereas a non-negligible percentage of reported fits were over-fitted or wrong parameters were reported. Finally, the paper provides guidelines for kinetic fitting and discusses possible fitting alternatives. 000844604 536__ $$0G:(DE-HGF)POF3-255$$a255 - Terrestrial Systems: From Observation to Prediction (POF3-255)$$cPOF3-255$$fPOF III$$x0 000844604 588__ $$aDataset connected to CrossRef 000844604 7001_ $$0P:(DE-HGF)0$$aNeuser, A.$$b1 000844604 7001_ $$0P:(DE-Juel1)129469$$aHerbst, M.$$b2 000844604 7001_ $$0P:(DE-Juel1)129549$$aVereecken, H.$$b3$$ufzj 000844604 773__ $$0PERI:(DE-600)1498740-5$$a10.1016/j.soilbio.2018.01.017$$gVol. 120, p. 260 - 271$$p260 - 271$$tSoil biology & biochemistry$$v120$$x0038-0717$$y2018 000844604 8564_ $$uhttps://juser.fz-juelich.de/record/844604/files/1-s2.0-S0038071718300178-main.pdf$$yRestricted 000844604 8564_ $$uhttps://juser.fz-juelich.de/record/844604/files/1-s2.0-S0038071718300178-main.gif?subformat=icon$$xicon$$yRestricted 000844604 8564_ $$uhttps://juser.fz-juelich.de/record/844604/files/1-s2.0-S0038071718300178-main.jpg?subformat=icon-1440$$xicon-1440$$yRestricted 000844604 8564_ $$uhttps://juser.fz-juelich.de/record/844604/files/1-s2.0-S0038071718300178-main.jpg?subformat=icon-180$$xicon-180$$yRestricted 000844604 8564_ $$uhttps://juser.fz-juelich.de/record/844604/files/1-s2.0-S0038071718300178-main.jpg?subformat=icon-640$$xicon-640$$yRestricted 000844604 8564_ $$uhttps://juser.fz-juelich.de/record/844604/files/1-s2.0-S0038071718300178-main.pdf?subformat=pdfa$$xpdfa$$yRestricted 000844604 8564_ $$uhttps://juser.fz-juelich.de/record/844604/files/Incubation_information_content_R2_clear.pdf$$yPublished on 2018-03-20. Available in OpenAccess from 2020-03-20. 000844604 8564_ $$uhttps://juser.fz-juelich.de/record/844604/files/Incubation_information_content_R2_clear.gif?subformat=icon$$xicon$$yPublished on 2018-03-20. Available in OpenAccess from 2020-03-20. 000844604 8564_ $$uhttps://juser.fz-juelich.de/record/844604/files/Incubation_information_content_R2_clear.jpg?subformat=icon-1440$$xicon-1440$$yPublished on 2018-03-20. Available in OpenAccess from 2020-03-20. 000844604 8564_ $$uhttps://juser.fz-juelich.de/record/844604/files/Incubation_information_content_R2_clear.jpg?subformat=icon-180$$xicon-180$$yPublished on 2018-03-20. Available in OpenAccess from 2020-03-20. 000844604 8564_ $$uhttps://juser.fz-juelich.de/record/844604/files/Incubation_information_content_R2_clear.jpg?subformat=icon-640$$xicon-640$$yPublished on 2018-03-20. Available in OpenAccess from 2020-03-20. 000844604 8564_ $$uhttps://juser.fz-juelich.de/record/844604/files/Incubation_information_content_R2_clear.pdf?subformat=pdfa$$xpdfa$$yPublished on 2018-03-20. 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