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Wetlands are important habitats consisting in true biodiversity pools. Human pressure had a continuous negative impact during time, i.e. significant changes, or more, irreversible, where the area of oligothrophic bogs has been reduced. Our observations have been carried in Tinovul Mare–Poiana Stampei Natural Reserve, situated in Dorna Depression (The Oriental Carpathians) at 910 m altitude, with 677 ha. This is the largest peat bog in Romania. The main goal is focused on all biotic and abiotic factors which are ...

The mushrooms are able of cumulating metals from environment depending on specie, harvesting place, type of soil, degree of development and other environment conditions. The paper presents the results of the study on levels of copper, zinc, iron, manganese, chromium and calcium in mushroom harvests from Calimani site where the soil is degraded by mining work. The mycological material (19 samples of mushrooms) was harvested from 6 places of Calimani site: Ilva Dump, Dumitrelul Dump, near Dump of Pin, Dump of Pin, P...

Recent data demonstrate a significant capacity of mushrooms to retain the pollutants from soil, so being realised the mycoremediation of soil. Nitrogen oxides are major atmospheric pollutants. The main oxides, nitrogen monoxide and dioxide, penetrated in human body cause important toxic effects: methaemoglobinemia, haemolysis, vasodilatation and even cancerogenesis. The accumulation of these oxides in mushrooms, as nitrites and nitrates, is dependent on: species, environmental conditions and chemical composition o...

Our investigation regard the distribution of pollutant in the soils degraded by mine activity in the circuit soil-macromycetes. Pollutants categories have been evidenced using FT-IR spectroscopy. Our results underline the macromycetes species extremely flexible capacity to accumulate pollutants of various categories. The distribution of the pollutants in the soil varies from one region to another and depends on the prelevation depth.

The investigated area has about 200 sq km and it is situated in the north of Eastern Carpathians. Our researches have been carried on samples at an altitude range between 700- 1800 meters a.s.l. There have been identified 4 forest communities: Calamagrostio villosae – Pinetum mugi Sanda et Popescu 2002, Hieracio transsilvanici – Piceetum Pawlowski et Br.-Bl. 1939, Hieracio transsilvanici – Abietetum (Borhidi 1971) Coldea 1991, Leucanthemo waldsteinii – Fagetum (Soo 1964) Tauber 1987. The goal of this study...

The aim of this study is to provide data on biological state of soil in depth, using the comparative study of general microbiota frequency and activity. For the quantitative analysis of soil microbiota, we have used soil samples for dilutions (10-1 - 10-6). The results were expressed in colony-forming units/g soil (CFU). The soil was sampling from Calimani National Park (The Oriental Carpathians) in October 2006, June and September 2007. The soil microbiota registers quantitative variations from one sample point t...

Our paper presents the results of a study concerning the possibility to use mushrooms for soil remediation after mining exploitation. The samples have been harvested from Calimani Mountains (Northern Carpathians) an important site for sulphur extraction in Romania. Despite, the sulphur mines have been closed from several years, soil and vegetation are still affected and is necessary to improve theirs qualities especially by biological methods. By oxidation processes, sulphur is transformed in air to oxides especia...