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| Keywords: Wrc.png Attention Due to a typo in the underlying equation this plot shows the wrong curves Please use the corrected vector version File Wrc svg instead Water retention curve from http //en wikipedia org/wiki/Image Wrc jpg calculated diagram of soil with model formula van Genuchten 1980 <ref> cite web https //www bgr bund de/DE/Themen/Boden/Netzwerke/Adhocag/Downloads/Ergaenzungsregel_1_18 pdf Verknüpfungsregel 1 18 “ Parameter für das Modell einer stetigen Funktion der θ ψ -Beziehung 2015-07-29 Ad-hoc-AG Boden 2004-09-17 PDF 242 KiB Staatlichen Geologischen Dienste und BGR German </ref> F p Wr + Ws - Wr / 1 + a p exp n exp m with m 1 - 1/n 1 cellpadding 1 cellspacing 0 +Param List Soil Wr Ws a n m - Ss 0 0403 0 37068 0 08742 1 57535 0 36522042 - Uu 0 0 42125 0 00340 1 34447 0 25621525 - Lu 0 0 42121 0 01334 1 12614 0 11201094 - Tt 0 0 55054 0 00681 1 08155 0 07540104 reference <references /> Wrc svg Soil science diagrams Hydrological diagrams | ||||
