Journalartikel

Jahr der Veröffentlichung: 2005

Seiten: 372-374

Zeitschrift: Journal of Plant Nutrition and Soil Science

Bandnummer: 168

Heftnummer: 3

ISSN: 1436-8730

eISSN: 1522-2624

DOI Link: https://doi.org/10.1002/jpln.200421652

Verlag: Wiley-VCH Verlag

Abstract: 
The aim of this study was to provide knowledge of the prediction efficiency of two pedotransfer functions for soil cation-exchange capacity (CEC), i.e., the approaches of Krogh et al. (2000) and Scheinost (1995). Potential CEC, i.e., CEC at pH 8.1, was predicted for 30 samples of German soils showing a strong variation of soil organic C and clay content which are important soil characteristics for CEC. The results were compared to analyzed potential CEC of the samples by coefficient-of-efficiency (EC) criterion of Nash and Sutcliffe (1970). Significant deviations between observed and measured CEC were found for both functions. The approach of Scheinost (1995) showed a higher prediction efficiency (EC = 0.77 in comparison to EC = 0.26 for Krogh et al., 2000) and better results under extrapolative conditions.

Harvard-Zitierstil: Horn, A., Düring, R. and Gäth, S. (2005) Comparison of the prediction efficiency of two pedotransfer functions for soil cation-exchange capacity, Journal of Plant Nutrition and Soil Science = Zeitschrift für Pflanzenernährung und Bodenkunde, 168(3), pp. 372-374. https://doi.org/10.1002/jpln.200421652

APA-Zitierstil: Horn, A., Düring, R., & Gäth, S. (2005). Comparison of the prediction efficiency of two pedotransfer functions for soil cation-exchange capacity. Journal of Plant Nutrition and Soil Science = Zeitschrift für Pflanzenernährung und Bodenkunde. 168(3), 372-374. https://doi.org/10.1002/jpln.200421652