Abstract
External impact on the development of fluvial systems is generally exerted by changes in sea level, climate and tectonic movements. In this study, it is shown that a regional to local differentiation of fluvial response may be caused by semi-direct effects of climate change and tectonic movement; for example, vegetation cover, frozen soil, snow cover and longitudinal gradient. Such semi-direct effects may be responsible for specific fluvial activity resulting in specific drainage patterns, sedimentation series and erosion–accumulation rates. These conclusions are exemplified by the study of the fluvial archives of the Tis(z)a catchment in the Pannonian Basin in Hungary and Serbia from the middle of the last glacial to the Pleistocene–Holocene transition. Previous investigations in that catchment are supplemented here by new geomorphological–sedimentological data and OSL-dating. Specific characteristics of this catchment in comparison with other regions are the preponderance of meandering systems during the last glacial and the presence of very large meanders in given time intervals.
Highlights
The impact of climate on fluvial activity and subsequent drainage patterns has long been recognized [1,2,3] in addition to other external forcing factors, such as tectonic movements, base-level changes and anthropogenic activity
We complete the former description of the middle Tisza system [30] by adding the sedimentology and morphology of a large meander further upstream near Tiszacsege (Figures 2 and 3)
The subsidence of the Pannonian Basin led to low river gradients and to generally low-energy conditions that favoured a meandering river pattern
Summary
The impact of climate on fluvial activity and subsequent drainage patterns has long been recognized [1,2,3] in addition to other external forcing factors, such as tectonic movements, base-level changes and anthropogenic activity. The timing of considerable changes of fluvial evolution at climatic transitions has been recognized in other climatic zones, such as the monsoonal environment, for instance in China [11,12] and Australia [13] Quaternary 2018, 2, x FOR PEER REVIEW called a model of non-linearity as the fluvial action is influenced by the delayed effect of vegetation development with regard to the climatic change driver.
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