『Abstract
The comparison of two multiple regression models is based on
the assumption that geochemical composition of the drainage basin
alluvial sediments is derived primarily from the underlying bedrock
lithology. The parent material is integrated with both stream
sediment and overbank sediment geochemistry via the two essentially
different approaches as regards the drainage basin geomorphological
data: (1) as the relative area of influence representing a portion
of the catchment basin occupied by a specific rock type and (2)
as the relative “line” of influence representing a narrow zone
of the underlying bedrock traversed by the perennial streams which
form the active stream network. The model comparison is established
on the goodness-of-fit test for both experimental designs and
for the same set of data. Both experiments converge on the linear
approach as the more appropriate model in evaluating the lithologic
influence on the analysed sample media in small mountainous watersheds.
Keywords: Drainage basin processes; Alluvial sediments; Multiple
regression analysis; Zumberak; Croatia』
Introduction
Description of the study area
Drainage network
The channel-reach processes
Dry valleys
Sampling
Sample preparation
Analytical methods
Regression analysis
Variables
Results and discussion
Relationship to source lithology
Conclusions
Acknowledgments
References