Marisia - Maros Megyei Múzeum Évkönyve 11-12. (1983)
I. Geologie – geografie
26 JAKAB SAMOILA 8 studii speciale pentru fiecare caz in parte, neputindu-se recomanda solu^ii tip, general valabile. Stabilirea solufiilor concrete trebuie sä rezulte dintr-o colaborare a mai multor speciali$ti: hidrogeologi, geomorfologi, pedologi, geotehnicieni $i proiectanfi. FACTORS RESPONSABLE FOR LANSLIDES IN TlRNAVE HILLY LAND (Summary) Factors responsable for landslides were studied in the hilly land of Tirnave rivers. The study revealed that two categories of factors contribute to the frequent occurrence of landslides, such as: a) compulsory and b) occasionally. The compulsory ones are of lithological, orographical und climatic nature: clayey type of rocks and soils; the declivity of relief und heavy rains in concetrated spells, or an abundence of melting water. The occasionally factors are multiple and they cause modification of phisico-mechanical properties of soils and rocks. About 80% of slopes of studied area present landslide potential A diagram representing the risck periods of landslides was compilated. Reduction of soil moisture should reduce landslide potential, so the measures suggested are afforestation in the region, construction of artificial drainage networks, levelling of waved area on the slopes, regulation of rivers and brooks and the correction of land-use. BIBLIOGRAFIE JAKAB S. (1977), Procese de modelare a versanfilor si formafiuni cuaternare in nord-estul Podisului Tirnavelor, tezä de doctorat, Universitatea Bucuresti. SCHUYLENBORGH, J. van (1972), Short introduction to the physico-chemical aspects of weathering and soil formation, Lecture notes I.T.C. Enschede. TREBER I., TÖVIS SI I., CÖRMÖS D. (1973), Studiul alunecärilor de teren de pe versantul sudic al Dealului Cetä(uia-Cluj. Studia Universitatis Babes- Bolyai, s. geogr. fasc. 2, XVIII. Cluj-Napoca. ÚJVÁRI I., BUZ, V., (1973), Perioadele caracteristice de supraumectare litologicä, de regenerare a apelor subterane si procesele gravitafionale de versant. Studia Universitatis Babes-Bolyai, s. geogr. f. 2. Cluj-Napoca.
