Open AccessEcological and Agronomical Analysis of Some Permanent Grasslands in the Banat Area
Author(s) -
Carmen Claudia Durău
Publication year - 2012
Publication title -
bulletin of university of agricultural sciences and veterinary medicine cluj-napoca. agriculture
Language(s) - English
Resource type - Journals
eISSN - 1843-5386
pISSN - 1843-5246
DOI - 10.15835/buasvmcn-agr:8742
Subject(s) - ruderal species , geography , vegetation (pathology) , grassland , arable land , ecology , diversity index , agroforestry , environmental science , species richness , agriculture , biology , habitat , archaeology , medicine , pathology
The importance of permanent grasslands in Romania has been minimised these last years by both turning them into arable lands or by abandoning them. The goal of this paper is to characterise from an ecological point of view and from the point of view of fodder yield some permanent grasslands in different states of management with a view to establish some corrective measures. The vegetation of the permanent grasslands was analysed in 2011, with measurements made in the last decade of April, in the middle of the second decade of June, and in the second decade of September. Permanent grasslands are located in the southern part of the Timis County, following the line of the localities Dudestii Noi - Cenad. Data processing was done based on botanical sampling. Vegetation determination was done with the linear method (quadrant) calculating pastoral value (PV). Alphabiodiversity was estimated with the Shannon (H' ) and Simpson (D) indices, while beta-diversity was estimated with the Jaccard index (Pj) and with the Hamming (H) distance. Irrational use of permanent grasslands and the lack of proper improvement measures have lead to the present state of the vegetal cover. The presence of ruderal plants is obvious and the frequency of invaluable species defines the grasslands from an agro-ecological point of view.