USING PEDOLOGICAL AND AGROCHEMICAL INFORMATION IN DETERMINING OF AGRICULTURAL LAND PRODUCTIVITY FROM VINGA PLAIN PUBLISHEDAdrian ŢĂRĂU, Daniel DICU, Dan DOLOGA
Using the data obtained through out pedological studies and researches conducted by specialists from OSPA Timisoara and materialized in “Banat soils map”, updated in 1999 and 2003 with new pedological studies and also with data gathered from the agricultural and forest sites of the national monitoring syste. The researches regarding the evolution of the agro-ecosystems quality and productivity from the Vinga High Plain tries to highlight the quality and quantity changes emerged in the agricultural ecosystem. It concerning a surface of 141249 hectares (72721ha in Timis County and 68528 ha in Arad county) , belonging to cadastral territorys situated in Vinga Plain or in the areas of low plain near this or near Lipova Hills : Variaş, Satchinez, Orţişoara, Maşloc, Sânandrei, Biled, Becicherecu Mic, Timişoara, Dumbrăviţa, Giarmata, Remetea Mare, Ghiroda (in Timiş County) and Secusigiu, Felnac, Şagu, Vinga, Arad, Fântânele, Zăbrani, Lipova (in Arad county). The examination of eco-pedological conditions, were setting in order and processing dates were made according to „The Pedological Studies Elaboration Methodology “, (vol. I,II,III) of ICPA Bucharest, in 1987 and Romanian Taxonomic System of Soils (SRTS-2003). There are presented some aspects regarding the physical and geographical characterization of investigated area. Here are briefly introduced the geology and lithology of surface materials, clime conditions, land drainage etc., as defining elements for edaphic resources’ main characteristics. Also, regarding the soil conditions have been determined the defining characteristics for the ecosystems productivity, granulated structure and humus content. In close relation with the first two aspects have been established the water content and the cationic change capacity. In order to determine the complex relation that take place between different soil characteristics and agro-ecosystems components, the researches were conducted both on field and laboratory. Studying the natural conditions (relief, lithology, hydrology, clime) and the antrophic ones it can be observed that the diversity of pedoclimatic conditions and the specific characteristics of the studied area have a great impact upon land resources and the way lands are used in general and in particular the agricultural ones (and also upon their actual and future productivity).
pedological; productivity; land; soil; resources