Holocene landscape evolution in the Trebgast Valey: man versus nature.
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02.10.2014, 12:00-12:15, H36, NW III
The Trebgast Valley with its small stream Trebgast is situated northwest of Bayreuth. Here, many specific relief features prove a long-term human impact on local Geomorphology, which in turn had an effect on subsequent landscape development. Besides natural geomorphic processes land utilisation by man is the strongest driver in shaping the earth´s surface. Usually this occurs unintentionally mainly depending on regional tillage practices. Especially long-term ploughing causes soil erosion, whereby regional relief will be altered gradually. By this, natural geomorphic processes are slightly changed and several new relief elements develop. Not only agriculture but also forestry, transport, construction works and impacts on the fluvial system leave clearly visible traces. To understand and estimate the degree of human impact, these structures have to be identified, interpreted and measured. Depicted by a few characteristic examples this presentation illustrates the nature of “anthropogenic geomorphology” in the Trebgast valley and gives an idea to which extend our landscape is affected by human utilisation.
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