The dynamics and variability of destructed morphogenic forms of surface above the timber line
2014
Lepeška Tomáš
The conclusion of the Rybô valley is significant avalanche area. The model territory of area of 34 ha is clearly destructed by avalanches, water erosion and cryogenic erosion as well as anthropogenic erosion. An irrational management of the model territory in last five centuries led to developing of different forms of surface destruction. On the base of aerial photographs taken in 1961, 2003, 2009 and 2012 we have mapped forms of destruction in scale of 1: 200. Total area of destructed morphogenetic forms (DMF ́s) was 5.5780 ha in 1961, 4.0650 ha in 2003, 4.5752 ha in 2009 and 4.9431 ha in 2012. The DMF ́s had reached the peak in 1961. In the mid- 60 ́s of the twentieth century there were ambitions for re-forestation of highest parts of the model territory what led to decrease of DMF ́s and development of vegetation. Present exogenous geomorphologic processes causes gradual increase of total DMF area.
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