Lotz, T. (2007): <b>Digitale Reliefanalyse zur statistischen Modellierung der Bodentextur in einem tropischen Hochgebirge (Süd Ecuador) - GIS-gestützte Ableitung von Initialisierungsdaten für ein SVAT-Modell -</b> University of Marburg, Faculty of Geography, <i>diploma thesis</i>
Resource Description
Title:
Digitale Reliefanalyse zur statistischen Modellierung der Bodentextur in einem tropischen Hochgebirge (Süd Ecuador) - GIS-gestützte Ableitung von Initialisierungsdaten für ein SVAT-Modell -
This diploma thesis deals with the purpose to create a dataset of soil texture (sand and clay content) as input parameter for a SWAT model. For this a senstitvity study on this parameter in the model was carried out and a statistical approach based on a digital terrain analysis to regionalize soil profile data was driven. The results show that the sensitivity of this model (CLM) limits to extreme content ratios of sand and clay. The resulting maps of the regionalization is discussed critical due to various factors: i) the number of used soil profile samples is to small ii) the accuracy of the DEM is to uncertain iii) the surface of the model region is highly textured (step slopes) and it should be considered wether the pedological processes are sorting soil substrate like in moderate regions, for which the concept of deriving soil properties in dependency of the terrain was proven.
Additional Infos:
The author of this thesis has switched his surname by marrying from Böth to Lotz.<br/>
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Data (collection of input data and results) can be requested at the author.
