The influence of climatic and soil conditions on the growth and development of the plum trees and on the yield levels on a typical luvosol at Caransebes-Caras Severin County.

Soil is an essential component in orchard ecosystems. For a fruit tree performance the soil is and will remain in the future, the unique place for growth and development of root system, while providing mineral elements with an essential role in nutrition of fruit trees. The paper presents an integrated and operational set of measurable criteria and indicators as a basis for a harmonized comprehensive information system used for achieving an intelligent infrastructure to create an ecologic quantified and integrated model of the climate, land and infrastructure resources, specific to fruit-trees lands and orchards. The objectives were to emphasize the monitorisation of the climatic conditions, soil fertility and biometrical measurements in some of the studied areas, in order to supplement the database. It is unanimously admitted that from all the relevant scientific indicators for fruit-tree cultivation, the thermic conditions in the air have a basic role. In this context, to highlight the climate of the area it was used a method based on the frequency of repetitiveness of thresholds and optimal climatic intervals in the last ten years. The paper, also, presents a relatively complex soil characterization,