INTERDEPENDENCE OF THE SOIL-PLANT-ANIMAL RELATIONSHIP IN THE GRASSLAND ECOSYSTEM. DESCRIPTIVE STUDY FOR GRASSLANDS LOCATED IN THE LOW PLAIN OF TIMIS PUBLISHEDAndreea MICLAU, Ionel SAMFIRA None firstname.lastname@example.org
The present study is of descriptive source being focused on the bidirectional interdependence of the soil-plant-animal relationship used especially in establishing the management or management practices of permanent grasslands. We believe that establishing a correct management plan will in the future dimension a correct use of the permanent grassland ecosystem. In order to highlight this interdependence relationship was studied some permanent grasslands from the Silvostepa Area, Low Plains of Timis with altitudes between 50- 150 m, administrative area studied belongs to Sacalaz commune Timis county. The analysis of the permanent grassland soils, the grouping of the land units and the interpretation of the pedological and geological characteristics was carried out by OSPA Timis based on the documents from the institution's database. Because no agrochemical study has been carried out by taking soil samples, the recommendations regarding the fertilization plan are indicative. The following characteristic types of soils predominate in the permanent grasslands studied: cernoziomes (3-57%), pelosols (5-47%), eutricambosols (9-41%), alluviosols (8-33%), solonets ( 5-25%), gleiosols (2-11%), vertisols (1-5%). For the floristic characterization of the grasslands, the phytosociological (geobotanical) method was used, as well as the double meter method (Samfira et al., 2011).. Finally, the study highlights that a certain type of soil generates a specific herbaceous cover, this vegetal carpet has its own characteristics both productive and qualitative. Depending on the productive characteristics of the vegetal association identified on a certain type of soil, the management practice of the respective ecosystem is designed, namely the loading of animals per hectare, the duration of the grazing season, the improvement of the soil characteristics through amendment and fertilization. The results show that the soil-plant-animal relationship is defining for the design of a correct management practice that will allow the economic exploitation of the plant system but especially the maintenance of its natural stability state.
grasslands, Banat Plain , productions features
field crops and pastures