Ecobiological study of medicinal plants in some regions of Serbia Obratov-Petkovic, D.,University of Belgrade (Serbia and Montenegro). Faculty of Forestry; Popovic, I.,University of Belgrade (Serbia and Montenegro). Faculty of Forestry; Belanovic, S.,University of Belgrade (Serbia and Montenegro). Faculty of Forestry ...
Plant, Soil and Environment,
(Oct 2006), Volume:
52, Issue:
10
Journal Article
Peer reviewed
Open access
Ecobiological study of medicinal plants includes the analysis of particular soil features and the ecological indexes of plant species as site indicators. Two experimental serpentine areas in ...northwest and central Serbia were selected to identify the potential limiting factors for medicinal plant harvesting. Soil analysis was done according to ICP methodology. Floristic and phytocoenological investigations were carried out after the method of Wasthoff-van der Maarel (1973). The assessment of soil quality was based on the calculation of indicator values of available N, heavy metals, and the sensitivity to acidification. According to our results, N (12.1-17.5), acidification (7-12), and indicator values for some heavy metals (0.3-46.5) show a low biological availability. Medicinal plant species at the investigated areas have low values of ecological indexes: N (2.41-2.82), moisture (2.45-2.70) and soil acidity (3.35-3.70). Hydrothermic conditions indicate the predominant presence of sub-xerophytes, semi-sciophytes and mesothermic species. These types of plant species are recommended for exploitation.
Land degradation is a complex issue caused by diverse drivers, each of which should be considered in the analysis of land sensitivity to degradation. This study identifies the areas most sensitive to ...land degradation in the Grdelica Gorge and Vranjska Valley, which are unique in terms of natural and socioeconomic conditions. Land-use changes and inappropriate land management have led to serious degradation in this region. The flexible and multifactorial approach of the Mediterranean Desertification and Land Use (MEDALUS) model allowed comprehensive land degradation sensitivity analysis in the study area. The main factors driving soil degradation were assessed by estimating climate quality index, soil quality index, and vegetation quality index, and the main socioeconomic indicators by management quality index and social quality index. The results showed that forest cover is the main factor to contrast land degradation, and even minor adverse changes in forest characteristics, such as structure, canopy cover, health, and quality, could trigger degradation processes. The vegetation quality index was defined in terms of the current vegetation’s capacity to protect soil from erosion, drought resistance, and fire risk. Detailed data on forest vegetation cover was obtained from the National Forest Inventory (NFI). The environmentally sensitive area (ESA) index generated through the analysis classified 26.11% of the total study area as critical, 69.53% as fragile, and 2.70% as either prone to or unaffected by degradation processes. According to the ESA index, the areas covered by forests with optimal species composition and high canopy cover were the least susceptible to degradation. The areas under intensive agricultural production without any application of conservation measures were the most susceptible to degradation. Future strategies for optimal land-use patterns are discussed, such as the intergration of woody species in croplands to protect soil against degradation and meet human needs in the areas prone to degradation.
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This paper analyses problems arising at workplaces at work at high temperatures breaking the employees' health. The equipment to reduce the negative influence on human organism is described. At a ...plant measurements were made under such microdimatic conditions, and the collected data were analyzed. Based on the obtained results, suggestions about the improvement of working conditions were made.
The ecological quality of the soils in some forest types of National Parks Tara (Serbia) were analysed in the function of availability of plant nutrient elements (nitrogen, phosphorus and base ...cations), soil susceptibility to acidification, carbon accumulation, retention indicator and indicators of heavy metals adsorption. The study was conducted in 11 designated ecological-vegetation forest types (ecological units), based on the analyses of soil properties.
The ecological quality of the soils in some forest types of NP Djerdap were analySed in the function of availability of plant nutrient elements (nitrogen, phosphorus and base cations), soil ...susceptibility to acidification, carbon accumulation, retention indicator and indicators of heavy metal adsorption. The study was conducted in 6 designated ecological-vegetation forest types (ecological units), based on the analyses of soil properties.
Analysis of forest soil acidification processes in the area of NP [National Park] Kopaonik [Serbia] Kadovic, R., Univerzitet u Beogradu, Beograd (Serbia). Sumarski fakultet; Belanovic, S., Univerzitet u Beogradu, Beograd (Serbia). Sumarski fakultet; Knezevic, M., Univerzitet u Beogradu, Beograd (Serbia). Sumarski fakultet ...
Glasnik Sumarskog fakulteta - Univerzitet u Beogradu (1987),
(2009), 2009-00-00, 2009-01-01, Volume:
2009, Issue:
100
Journal Article
Peer reviewed
Open access
This paper presents the results of the analysis of acidification processes in brown podzolic soil on granodiorites in the stands of spruce and spruce and fir in the area of NP Kopaonik. Critical ...loads of sulphur and nitrogen in these soils are presented using VSD model.
The content of heavy metals in the leaves of Hypericum perforatum L. on serpentinite soil in Serbia Obratov-Petkovic, D., Univerzitet u Beogradu, Beograd (Serbia). Sumarski fakultet; Bjedov, I., Univerzitet u Beogradu, Beograd (Serbia). Sumarski fakultet; Belanovic, S., Univerzitet u Beogradu, Beograd (Serbia). Sumarski fakultet
Glasnik Sumarskog fakulteta - Univerzitet u Beogradu (1987),
(2008)
98
Journal Article
Peer reviewed
St John's wort is one of the best known and used medicinal plant. The demands for St John's wort in Serbia is still supplied by the collection of native plants. Therefore it was necessary to examine ...the concentration of heavy metals in the soil and in plant material on serpentinites and to assess the potential safe harvesting and further utilisation of this plant species. The research was performed on three serpentinite sites in Serbia: Zlatibor, Divcibare and Goc. It was determined that the soils of all three localities had increased concentrations of nickel, chromium and manganese. The St John's wort plant material (leaves) showed the increased concentrations of iron, nickel and chromium. It was concluded that St John's wort was a tolerant species regarding to heavy metal content, and it was recommended to avoid its harvesting on the investigated localities.
The research was performed on Stara Planina in M.U. Topli Dol, at the altitude of 1547 +/- 4 m, in forest and pasture soils. Four soil profiles were opened in each beech forest (Rakitska Gora) and ...pasture (Markova Livada). The soils are formed in red Permian sandstones, at the slope of about 7-35 degrees, southwest exposure.
A very important parameter for the utilization of medicinal plants is the quality of active substances. The quality of the plant active substances does not depend only on its physiological potential ...and condition, but also on the environmental factors. The status of macroelements in the soil and the basic ecological indices of plants, as the site indicators, at two localities on Mt. Kosmaj (Serbia, Serbia and Montenegro) are presented. It was concluded that these relationships are very complex, in most cases identical and in direct correlation with the representation of individual plant species. Medicinal plants were analysed in the first place because of their potential exploitation.
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