- Biogeography (19)
- Climatology (36)
- Environment (77)
- Geomorphology (58)
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- Various (37)
Abstract: The present study aims at rendering the way the geomorphologic features of the eastern and northeastern regions of the Romanian Plain, influenced by the subsidence movements, is reflected in the soil cover. For its achievement, there was used Romania Soil Map, 1:200 000 scale and field mapping, inventorying the soil cover at the level of class, type and, partially, subtype. In the mentioned area located between the Argeş and the Siret, besides the soils (chernozems, phaeozems, reddish preluvosols) the genesis of which is triggered by the bioclimatic conditions characteristic to steppe, forest steppe and nemoral zone, there also develop soils with azonal and intrazonal character. Thus, the presence of large floodplains imposed the noticeable extension of the soils developed on recent fluviatile deposits (alluviosols). At the same time, the altitude and reduced relief intensity impose an increased phreatic level, which is mineralized in many areas and, consequently, certain soils are affected by hydromorphism (Gleysols and gleyic subtypes) and salinization (solonchaks and salinic subtypes, solonetz and alkalic subtypes). Another characteristic of the studied region is linked to the presence of certain soils buried under alluvial and proluvial deposits. The calculation of the topographical-pedogenetic index (Florea, 1997), as a rapport between non-zonal and zonal soils, emphasizes the pregnant influence of the local conditions from the Buzău and the Lower Siret subsidence plains compared to a series of higher plains (Râmnic, Galaţi).
Abstract: The paper aims at investigating the thermal stress and risk factors within the maximum sensitivity period of the winter wheat (heading – flowering – grain filling). Through their intensity, frequency and duration, they may have negative effects on the vegetation state, finally determining the reduced, moderate or severe crop yield reduction. The study was carried out at two meteorological stations, situated in the Timiş Plain: Timişoara and Banloc. Knowing the incidence, frequency, duration and intensity of the agrometeorological stress and risk parameters and of crops vulnerability, it gives the possibility to minimize their impact on the yields by adopting certain efficient strategies and measures for protection at local level.
Abstract: The present paper renders the analysis of the evolution of the heat wave that affected Romania between the 15th and the 24th of July 2007. This was the most intense heat wave registered in July; it also had the longest duration in the entire period since Romania made systematic meteorological observations. It affected the entire country, especially the southern and western regions, with the exception of mountainous area, where the effects were minimal. The maximum temperature for July was exceeded by 0.8°C, outlining an important increase in the evolution of July temperature, which may hold increased significance on the background of global warming. The heat wave mainly affected Hungary, Italy, Greece, Romania, Republic of Moldova, and Ukraine. All activity branches felt the consequences of this evolution. Thus, the paper is extremely useful to the experts in climatology, meteorology, to those who try to achieve a master or PhD thesis, to students and to all those interested in climatologic issues.
Abstract: The paper presents the evolution of drainage within the Motru hydrographic basin over the last 20 years, outlining the influence of the modifications occurred within the forested areas. The different degree of foresting in space (within the three sectors: mountainous, Subcarpathian and piedmont) and time (over the last 20 years) has major consequences over the regime of the water resources. Therefore, the main role comes directly to the azonal factor, which has a regularizing and compensatory role for the water resources, and indirectly to the human factor, more and more obvious, which leads to the withdrawal of forest areas.
Abstract: Traditional industries were pushed into the background in urban economies of the post-Fordist period, and both in capital turnover, as well as in employment it was the service industries, that became dominant. Consequently, those towns were in winning positions in this urban competition, in which the tertiary branches of the economy and improved services (information economy, R+D sector) could become the engines of urban development. The role of cultural economy in urban competition has recently been upgraded. Our study examines the role of cultural economy in urban competitions.
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