Vegetation specific to the sands from the research stations Sanislău” Mlaştina Vermeş (Vermes Marsh)” and Urziceni ″Grădina Cailor (Horses Garden)″

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Article Title:	Vegetation specific to the sands from the research stations Sanislău” Mlaştina Vermeş (Vermes Marsh)” and Urziceni ″Grădina Cailor (Horses Garden)″
Authors:	Adriana Oprea, Aurel Ardelean
Affiliation:	“Vasile Goldis” West University Arad, Romania
Abstract:	In the Northern part of continental sands of Nirului Plain there are two representative research stations, especially by the variety of the vegetal layer of the interdune lands and sand dunes: Sanislău Marsh “Vermeş” and Urziceni pasture ″Horses Garden″. The great diversity of phytocenoses is explained by the specific pedological conditions, diverse topoclimate and varied microrelief conditions. The associations from “Vermeş” populate damp stations, some of the associations having a relictary character. On the sand dunes from the reseach station “Grădina Cailor” a sparse vegetal layer forms, made up of shorter plants, with a well developed system. At Urziceni in the structure of psamosoils, limonite bands contribute to the storage of a sufficient quantity of water in the upper layers of the soil. In the marshy lands of interdunes from Sanislău Marsh “Vermeş”, the decisive factor in the biodiversity of cenoses is the excess of edaphic humidity.
Keywords:	Sand dunes, interdunes, psamosoils, environmental indices, ruderal plants
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*Correspondence:	Adriana Oprea, “Mihai Eminescu” National College Satu Mare, 5 Mihai Eminescu Street, Satu Mare, Tel. 0361-417074, e-mail: oprea_adryana@yahoo.com