THE ROLE OF CLIMATE FACTORS IN THE GENESIS OF SOIL RESOURCES AT LIVEZILE, TIMIS COUNTY, ROMANIA PUBLISHED

Ioana MARCHIȘ, Iulia SOPCA, Raluca PERESCU, Casiana MIHUȚ, MIRCOV V.D. casianamihut@yahoo.com
Abstract. This paper presents the climate factors that have formed the soil resources of Livezile, Timis County, Romania, i.e. the thermal regime of the area, using data from the Weather Station in Timisoara, Romania. (1) To do so, the first step was to develop a database. We studied the area and its limits and described the climate conditions. (3) The general characterisation of the thermal regime was based on the data from the Weather Station in Timisoara, at an altitude of 90 m, which corresponds to alluvial plain relief.(7) The influence of the main climate factors on soil cover can be expressed as a “De Martonne” aridity index. The studied area belongs to the interval I with aridity index below 26. (8) Due to its geographical location, natural conditions are specific to a divagation plain, subsidence and accumulation, based on which these soils formed and evolved. (2) The rather varied micro-relief, the plain surface has water stagnations, particularly in spring, after the snow melts, and also during heavy rainfalls. (4) The alluvial plain is interrupted, along the Ghilad-Dolaţ-Giera-Şuriani line, by higher crests formed on older alluvia and considered remnants of the low Timis River terrace. This inter-river represents the southern line of saline and alkaline soil formation and spread in Western Romania. In the lower basin of the two rivers, there are extremely favourable conditions for soil formation: here, soils occur dispersed as random patches in the western soils (Livezile-Partoş-Banloc-Ofseniţa) and rarely in chernozems (Dolaţ-Giera) or eutricambosols (Ofseniţa-Soca). Ii the old watercourse divagation areas, particularly along the meanders and small valleys where the sodic mud is at small depth, there are rather frequently island-like parches of saline and alkaline soils (Odăi-Ofseniţa-Dolaţ), whose frequency increases with the distance from the old watercourses (Banloc-Dolaţ-Livezile).(5)
Keywords: climate, soil resources, temperature, rainfall, “De Martonne” index
Soil Sciences
Presentation: poster

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