Екзогенни процеси и морфодинамични системи в Родопите

Ц. Михайлов, П. Стефанов. Екзогенни процеси и морфодинамични системи в Родопите

Tzv. Mihailov, P. Stefanov. Exogenic Processes and Morphodynamic Systems in the Rhodopy Mountain

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EXOGENIC PROCESSES AND MORPHODYNAMIC SYSTEMS IN THE RHODOPY MOUNAIN

Tzv. Mihailov, P. Stefanov

Summary

Contemporary exogenic processes in the Rhodopy mountain are looked upon as an element of the youngest stage of development of this big and complex morphostructure. Some factors and conditions, determining the current morphodynamics character are considered in this paper. Processes are being treated within systems. Factors and conditions, determining contemporary processes development in the Rhodops are classified into three basic groups: Physical geographical ones. They represent a complex of hydroclimatic factors and altitudemorphologie conditions. The vegetation morphoclimatic action is also included into this group. 2. Lithologic-soil conditions. They include the rock basis, soil and slope cover. 3. Anthropogenic factors. They include landuse, hydroenergetic and hydromeliorative construction and mining.

Processes, taking place in a mutual interaction and internal dynamic balance are assumed as exogenic systems. The following morphodynamic systems are represented in the Rhodops: 1. Weathering – denudation one; 2. Denudational – gravitational one; 3. Processes of solifluxion and nival destruction; 4. Karst system; 5. Fluviogenic system; 6. Anthropogenic system; 7. Subaqual system. They all show a territorial differentiation.

Their intensely is influenced also by the altitude and the seasonal cycle. The West Rhodopy are noted for the relatively greater stability of exodymanic processes. Weathering-denudational processes and karas processes are of greatest importance. Some traces of soliflux and cryonival morphosculpture can be found in the highest mountain regions. The Rhodops eastern parts show better contemporary exodynamic unification. Fluviogenic processes play the leading part, accelerated erosion first of all. Denudation-gravitation processes have their definite impact upon the mountain morphosculpture. Dam basins are sites of subaqual accumulation.

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