Geographical studies and environment protection research
Volume IX | Issue 9
Ecoclimatic Indexes within the Oltenia Plain
Abstract: The Oltenia Plain represents an important agricultural region of Romania, which displays vast surfaces that can be properly cultivated if one takes into account the climatic restrictions that generates a series of dysfunctions. In order to underline the problems related to the aridization tendency within the region, as well as to determine the most adequate plants, there were calculated many indexes used in different agroclimatic and biogeographical studies. Thus, according to the processed data, the Oltenia Plain generally belongs to the steppe and forest steppe domain and, with regard to the cultivable plants, there are recommended the thermophilous and xerothermophilous ones, which can get good productions even in the pluvial-thermal conditions characteristic to the region. The thermal regime imposes itself through a slight increasing tendency because of the extremely high values registered in summer, while the pluviometric regime registers obvious fluctuations and a decreasing tendency. Consequently, the issue related to the aridization of the southern part of the Oltenia Plain is confirmed, an issue that is presently stressed by other factors, such as massive deforestation, destruction of the irrigation systems etc., which led to the reactivation of certain areas covered by sands. However, the partial results of the study do not sustain the idea of desertification in the area.
Volume IX | Issue 9
Comparison between the Oltenia Plain and the Southern Dobroudja Plateau in Terms of Pluviometric Deficit
Abstract: The Oltenia Plain and the Southern Dobroudja Plateau are two regions located in the two southern extremities, namely the south-western and the south-eastern extremities of Romania, which display distinct climatic features imposed by multiple climatic influences. The climatic evolution, especially in the last three decades, and the regional manifestations of the climatic phenomena related to global warming induced significant changes within the mentioned regions. In this context, we mention the pluviometric deficit. In the present paper, we have analysed the pluviometric deficit (annual and the warm semester of the year) within the Oltenia Plain and the Southern Dobroudja Plateau registered in the last half of the century (starting with 1961). We made a comparative analysis. The significant differences clearly emphasize the aridization tendency of the regional climate. The paper is useful for climatologists, as well as for students, master and PhD students.
Volume VIII | Issue 8
Meteo-Climatic Risks in the Timiş Plain with Impact on Agriculture
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.
Volume VIII | Issue 8
Considerations upon the Heat Wave from July 2007
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.