Volume XII |

The Characteristics of the Ski Domains from the Romanian Carpathians

Abstract: Most of the Romanian ski tracks have been equipped in the mountain areas, at altitudes lower than 1500 m, in the proximity of human areas. The most relevant indicator of the development of ski lands in Romania is given by the total length of the ski tracks which, in 2010, was 168 km. Without any further references to other constituents of the tourism infrastructure from this field, one can say that the Romanian ski area is characterised by an insufficient development of ski tracks. In the Romanian Carpathians, the average density of the ski tracks is about 2 m/km2, with important variations in different mountain areas. The most equipped and developed ski domain from Romania (26% from the total length of the ski tracks) is located in the Curvature Carpathians area, in the territory of Prahova and Braşov counties. The development of this area was initiated and supported during the Communist regime through the layout of several mountain resorts of national importance within which the length of the ski tracks is noticeable. The main factor that influenced the development of the ski lands in this area is related to the proximity of the capital city, but also of several important towns, such as Braşov, Ploieşti and Piteşti that have provided the resorts with a large and constant flux of tourists. In the years to come, the development prospects of this field are considerable taking into account the growing interest shown by the Romanian tourists in the practice of winter sports, but also the availability of the local authorities towards earning European funds in order to lay out new ski tracks equipped at European standards.

Volume IX |

Endokarstic Relief within the Natural Reserve Area of “Repedea Hill Fossil Site”

Abstract: This study aims to analyze the endokarstic relief of the reserve from Repedea Hill. Although there have been made many geological and geomorphological researches on this sector of the Moldavian Plateau, the endokarstic relief remained largely unexplored until now. The main geomorphological factor in the evolution of this type of relief is the geological substrate from which the lithological component stands out as importance. In the Repedea reserve area the thickness of the lithological association is about 10m and favourable to karstification, composed of oolitic and lumashelic limestone and sandstone. The Repedea oolitic limestone appears as a succession of layers with thicknesses of 2-40 cm separated by intercalations of fine, conchiferous sands of 0.5 – 10 cm. These resistant rock packages have conducted to the forming of a structural karst plateau called the Repedea plateau. The high position of this karst plateau from the whole relief of the studied area can be considered a determining factor for the formation of a suspended authigenic karst with vadose hydrological regime. 9 caves were mapped in the Repedea reserve area and they are located on a relatively small surface of approx. 7 ha. The total length of the mapped underground galleries is of 401 m, thus determining an average density of 5.7 km/sqkm. Unlike the Carpathian caves, in Repedea Hill, the rock type and the local hydrological characteristics do not favour the emergence of massive carbonate concretions because the caves are in a continuous process of caving. In conclusion, the endokarstic relief from “Repedea Hill fossil site” reserve is well developed, strongly differentiating from other endokarstic areas of Romania.

Volume VIII |

The Importance of the Asymmetry of Small Hydrographic Basins in the Occurrence of Major Floods in the Rarău Massif

Abstract: The present study approaches a series of geomorphological aspects specific to hydrographic basins of small sizes which, in certain circumstances, favor the occurrence of floods having major effects upon the human settlements. We focused our attention on three neighboring hydrographical basins, located in a mountainous area in the north of the Romanian Carpathians, where on the 24th of July 2008, following some heavy rains, there occurred major floods. Although the three rivulets the Valea Seacă, the Izvorul Alb and the Valea Caselor are tributaries on the right side of the Moldova river, the behaved differently during the above mentioned flood. The particularity is that within the Izvorul Alb hydrographic basin the maximum flow during the flood was two time lower than in the case of the other two basins between which it is located. Given the fact that the quantity of precipitations received by all three basins did not differ and the physical-geographical features are similar, there was performed the morphometric analysis of all three hydrographical basins in order to outline the morphometric variables with a role in the concentration of the runoff: the surface, the slope, the roundness, the shape coefficient, etc. The conclusion drawn from this case study is that the asymmetry of the basin is an essential parameter in making the difference in respect to the behavior of small hydrographical basins during the formation of exceptional floods.