The aim of the paper is to analyse the changes in erosion intensity in Jablanica region between 1971 and 2018, using the Gavrilović method. Study area covers the catchment of three left tributaries ...of South Morava river, which have vary unstable river regimes. Natural conditions have a negative impact on intensity of the erosion process with unfavourable geological and pedological structure, precipitation regime, high slope values and significant vertical dissection of the terrain. Changes in erosion process are caused by changes in agricultural production as well as anti-erosion works, that have been carried out during the second half of the 20th century.
The aim of this research is to determine the change in the spatial distribution of erosion intensity in the territory of the Jablanica River Basin in the period 1971–2016 caused by land use and ...demographic changes. The Erosion Potential Method (EPM) was used to quantify changes in erosion intensity and to estimate the total annual sediment yield. The research results show that the value of the erosion coefficient decreased from 0.432 in 1971 to 0.360 in 2016. Specific annual gross erosion in the Jablanica River Basin was 654.41 m3/km2/year in 1971, while in 2016 it was 472.03 m3/km2/year. The analysis of proportional changes was used to determine demographic changes and land use patterns in the basin area. In terms of the scale and intensity of the erosion process, three types and one sub-type of population dynamics of settlements and land use changes were distinguished, respectively: progressive, stagnant, regressive and dominant regressive. It was concluded that the results show the significance of demographic and land use changes in the control of the intensity of erosion. The Soil Erosion Map may be useful to planners and land use managers to take appropriate decisions for soil conservation in the basin.
Several studies applied numerical age determination methods to examine glacial phases of the central Balkan Peninsula. However, the resulting datasets are contradictory, meaning that further ...discussion is needed. This study provides 10Be cosmic ray exposure (CRE) ages of a succession of glacial landforms in the Jablanica Mt. (North Macedonia), aiming at a better understanding of Late Pleistocene glacier development in the area. On the basis of the mapped glacial landforms, six glacial stages were identified and their mean equilibrium line altitudes (ELAs) were estimated. The CRE ages of five glacial stages - from the second oldest to the youngest - were determined between 16.8+0.8/−0.5 ka and 13.0+0.4/−0.9 ka. Accordingly, the most extensive glaciation in the Jablanica Mt. occurred before ~17 ka. The average ELA of the glaciers was 1792 ± 18 m a.s.l. during the largest ice extent, and 2096 ± 18 m during the last phase of the deglaciation.
Independent reconstructions of key climatic drivers of glaciological mass balance suggest that glacial re-advances during the deglaciation were associated to cool summer temperatures before ~15 ka. The last glacial stillstand apparently resulted from a modest drop in summer temperature coupled with increased winter snow accumulation. In the study area no geomorphological evidence for glacier advance after ~13+0.4/−0.9 ka could be found. On the basis of independent climate proxies we propose that the last glacier advance occurred no later than ~13 ka, and glaciers were withdrawing during the Younger Dryas when low temperatures were combined with dry winters.
Display omitted
•Five deglaciation phases identified between ~17 ka and ~13 ka in Macedonia•The maximum glacier extent is LGM or older.•Parallelization of moraines barely on morphological basis is problematic.•Summer temperature/winter accumulation drove glacier stabilization before/after ~15 ka.•Dry conditions probably hindered glacier advance during the Younger Dryas.
Although glacial landforms on the Balkan Peninsula have been studied since the 19th century, only scarce data are available about the extent of the former glaciations in the Central Balkan Peninsula, ...the transition zone between the Mediterranean and Central Europe. Glacial features of the Jablanica Mt. were mapped, described and classified into morphostratigraphic units. A revised glacio-geomorphological map was produced and glacial landforms were assigned to six morphostratigraphic units. Ten primary and two secondary cirques were identified in the upper parts of the studied valleys, while downstream the valleys were steep and glacially shaped with several glacial steps and thresholds. Cirque and valley morphology indicate that subglacial deepening was limited within the cirques and was more intensive in the valley sections during more extensive glacial phases. The largest reconstructed glaciers were 4.6–7 km long, while the last cirque glaciers were only a few hundred meters long. Using morphostratigraphic data, a glacier reconstruction was carried out for the largest mapped glacial extent. On the basis of glacial geomorphology, a former equilibrium-line altitude (ELA) of ~1800 m and glacier cover of 22.6 km2 were estimated during this stage. The local ELA values were compared to the regional ELA record and enabled to tentatively attribute a MIS 6 age for the reconstructed maximum ice extent in the study area.
This paper reports the first finding of two native species in the flora of the Republic of Macedonia, namely Pedicularis hoermanniana (Orobanchaceae) and Petasites kablikianus (Asteraceae). Both ...species were found on Mt. Jablanica in the upper part of the Belička River valley (SW Macedonia), while P. kablikianus was also found in the upper part of the Pena River valley in the Šar Mountains (NW Macedonia)
Ethnobotanical survey presents the first step in the identification of new bioactive compounds. This study aimed to collect, document and analyse data on the traditional use of medicinal plants in ...Jablanica district (South-Eastern Serbia) and to compare traditional knowledge with scientifically proven data. Ethnobotanical study was carried out using semi-structured interviews with 103 informants. Discussion of the results was performed after the quantitative ethnobotany factors were calculated. Comparison of the data was done with those of European Medicines Agency (EMA), Yugoslav Pharmacopoeia 1984 (Ph. Jug. IV) and relevant scientific papers. The informants reported data on 89 medicinal plants belonging to 49 families in Jablanica district. The dominantly used families were
Lamiaceae
and
Asteraceae
, while
Hypericum perforatum L.
,
Mentha × piperita L.
and
Matricaria chamomilla L.
were the species with the highest number of use reports. The most frequently reported indications were respiratory, gastrointestinal, dermatologic, and psychological diseases. The species with most diverse uses were
Taraxacum campylodes G.E.Haglund, Achillea millefolium L.
and
Rosa canina L.
According to our results, medicinal plants in Jablanica district are mainly used for treating minor health issues as a mode of primary health care. The wide application of species belonging to
Lamiaceae
and
Asteraceae
families can be partially attributed to the fact that many cosmopolitan medicinal plant species belongs to these families and also to their predominance in the flora of Jablanica districts.
The principal aim of this paper was to explore destination competitiveness factors of Jablanica District (Serbia), by examining the attitudes of tourists. For research purposes, 32 attributes of ...destination competitiveness were rated with two parallel five-point Likert type scales - one by which tourists rated the importance of the attribute and the other by which they expressed their satisfaction with the same. A total of 378 validly completed questionnaires were collected and served as a basis for data analysis. By using a factor analysis, the most important destination competitiveness factors were extracted. Based on this factor solution, Importance-Performance Analysis (I.P.A.) was performed. Using I.P.A., this article examines the efficiency of the resources allocation based on isolated factors, and the possibility of creating management strategies to improve the competitiveness of this destination. The results of this study indicate that the factors of food and environment are of primary importance for tourists when choosing this tourism destination. Research results will be of great importance for tourism managers in the destination, as well as for authorities of local governments in the district, to better understand strengths and weaknesses of identified competitiveness factors and utilise them as a starting point for tourism development.
The need for natural zeolite in Serbia is around 7000 t/year. Three deposits, located in the region of Krusevac, have reserves of about 2.2 million tons of zeolite, thus the prospective of this ...region is exceptional. The quality of zeolitized tuff is reflected in the high content of clinptilolite, which contributes to high market price of mineral raw material and its finished products. Geologist of the company Contractor Ltd investigated three deposits of zeolitized tuffs on the slopes of Jastrebac mountain, of which the largest one, namely 'Jablanica 1', was geologically explored in details.
One of the main tasks of marketing research is the assessment of market
potential. The aim of this research was to analyze the dynamics of selling
and buying of wood and nonwood forest products ...(NWFPs) within the analyzed
enterprises in the Jablanica District. The purpose of this research was to
examine the possibilities for the development of small and medium-sized
enterprises (SMEs) directed towards a sustainable use of forest products in
the area of the Jablanica District. The subject of this research is:
purchased and placed quantities in the analyzed enterprises, as well as the
prices that were realized for the products, with special emphasis on
commercially important mushrooms. The research was conducted in the territory
of Jablanica and it included five enterprises engaged in the purchasing,
processing and sale of NWFPs and the Forest Estate (FE) ?Forest? Leskovac.
The purchase of raw forest fruits and herbs had a growing trend (+ 17.8%) in
the 2006-2013 period. The average annual growth rate (AAGR) of sales was 3.4%
for medicinal plants and 30.6% for mushrooms. The AAGR of NWFPs export was +
32.6%. The placement of beech wood assortments (K class) recorded a purchase
AAGR of app. + 12.7%. In 2013, it was found that the NWFPs with the highest
market value were: blueberry, dried boletus and chanterelle. In 2013, their
total gross revenue in the domestic market amounted to 82.3 million RSD,
whereas the total gross revenue of the analyzed beech wood assortments was 87
million RSD.
The position of the first settlements was determined by geography, which
defined their form and set the basis for building the identity of modern
urban environments. Although the correlation between ...the natural and man-made
components of towns was changing under the influence of cultural
circumstances and the manner of social production of space, primarily in the
20th century, the natural elements still appear as primary urban elements.
The paper analyses the significance of Crkvina hill in the socio-spatial
context of the town of Trebinje, as well as the significance of Jablanica
hill in the socio-spatial context of the town of Novi Grad. It examines the
influence of the topography and hill element on the genesis of urban
structures, as well as the ways in which the hill is incorporated into the
urban tissues and activities of these towns today. It also analyses the
symbolic character of the hill, its role in transmitting socio-cultural
processes and in creating collective identity. It further determines the
potentials of the element of the hill, which can help increase the quality of
urban space and highlight the identity of Trebinje and Novi Grad.
nema
PDF
