RESEARCHES CONCERNING THE PROJECTION OF SOME HYDROTECHNICAL ANTIEROSIONAL WORKS IN THE FRUIT-GROWING PLANTATIONS

Abstract

The research was carried out with a view to antierosional land betterment in the fruit-growing area Lipova for setting up a fruit-growing plantation and providing the bases for specific topographic measurements. The soil characteristic for this ares is a brown alluvial soil.The values of slope of the land is between 10 – 20 %. The soil granulometric analysis was carried out by using Kacinski method, and the texture classification according to I.C.P.A. 1987 and the triungular diagram. The flow that would be discharged from the surface corresponding to the respective outlet was established, and after that a calculation of the component parts for outlets having a trapezoidal section was made. The consolidation of the outlets is made in a mixed way, biologically and mechanically. The texture class of the soil is argillaceous sandy dusty for the depth of 0 – 21 cm, loamy for the depth of 21 – 49 cm and loamy argillaceous for the depth 49 – 110 cm. The geometric elements of the outlets, namely the bottom bed and the depth are of 0,50 et 0,30 m. The test of the non-erosional rate velocity corresponds to an outlet inclination of 2,80 %, if the outlet is consolidated by grassing. The slopes of the tested land are between 11 and 19 % being necessary to carry out slope correction (compenastion) works.