- Biogeography (19)
- Climatology (36)
- Environment (77)
- Geomorphology (58)
- GIS and Remote Sensing (19)
- Human and economic geography (63)
- Hydrology (57)
- Regional geography (45)
- Tourism (42)
- Various (37)
Abstract: This study demonstrates the feasibility of using GIS in the assessment of landscape visual quality. Based on the digital elevation model achieved by processing the 1:5000 scale topographic plans, Viewshed analysis application was performed for 5 observation points of the territory, which were selected by objective criteria. We tried to quantify the landscape values of Piatra Neamt administrative territory through an objective analysis of the reality on the ground reflected from the observation points, taking into consideration also the human perception regarding these aspects (a hardly accepted domain by the scientific community). The analysis can lead to precise values of the landscape, yet the only element more difficult to quantify remains human perception. The application was possible starting from the mathematical interpretation of the landscape proposed by Neuray G. in 1987, but a great importance in achieving the expected results is held by the specific GIS techniques mentioned above. The main purpose is to highlight the landscape potential of the area of study, noting that this analysis can be applied to any other area.
Abstract: New urban and environment policies were drafted after 1990 for Bucharest as the Romanian capital city adapts from planned to market economy and reintegrates itself into the European community. As these policies are not from the start fully effective or take time to implement, large areas inside the city, corresponding to former industrial parks, enter a long process of decay. Residential development is making a heavy presence both inside and around the city. As a consequence of these phenomena, the urban and industrial landscape changes dramatically. The study assesses the industrial landscape evolution over time and space in District 4 of Bucharest using available maps for 1900–2010, GIS and field observation forms. Three distinct periods were delimited: 1900–1945 with incipient industrial activity, 1946–1990 when large industrial parks were developed and 1989 – present time, with deindustrialisation and land use change. Environmental problems related to industrial areas decay need to be addressed as the residential area is expanding and neighbours or replaces former industrial sites.
Abstract: The paper aims at analyzing the environmental quality of the Bâsca Chiojdului river basin by calculating a variety of environmental indices: human pressure index through population dynamics, human pressure index through agricultural land use, the naturality index, artificialization index and environmental change index. Choosing a 1 km grid for calculating and comparing these indices at the level of the river basin allows a more concise analysis on the environmental quality. Subsequently, the temporal dynamics of the environmental indices values is highlighted by the 40 years interval used especially in the human factor analysis, and by choosing the year 2005 as reference year. The results, embodied in the values obtained by applying formulas to calculate the environmental indices (human pressure index through agricultural land use – 44.19% agricultural land, the naturality index of the landscape – 50.82%; the artificialization index of the landscape – 2.32%; the environmental change index: Maruszczak version – 33.92; the improved version – 1.09, the completed version – 10.83) present the state of the environment. The proposed measures to stabilize and maintain a good environmental quality in the Bâsca Chiojdului river basin regard mainly the forest ecosystem, because it is the most important factor of maintaining the balance by its protective functionality on the environment.
Abstract: Assessing invasive terrestrial plant species in protected areas is of major importance, taking into consideration the role they play as key drivers in conserving biological diversity. The paper is aiming to argue the Invasive Terrestrial Plant Species (ITPS) in the Romanian protected areas with a special focus on the species Fallopia japonica in the Maramures Mountains Natural Park. Fallopia japonica, also known as Polygonum cuspidatum or Reynoutria japonica is an herbaceous perennial plant, largely occupying the riparian ecosystems and causing serious damages to native vegetation. The species is broadly regarded as one of the most invasive plant species in Europe, also listed by the World Conservation Union as one of the world’s one hundred worst plant invaders. The paper seeks to analyze the potential spread of Fallopia japonica in a protected area-Maramures Mountains Natural Park – V IUCN category as well as Natura 2000 site (SPA and SCI) integrating comprehensive statistical and field data with modern computing methods (GIS-based). Consequently, based on accurate mapping and field investigation of Fallopia japonica in the study-area, the authors were able to identify specie’s main ecological requirements and preferences, spreading conditions etc. The current research will have great contribution to undertaking further studies on invasive terrestrial plant species development, distribution potential and impact upon native habitats.
Abstract: In the present paper we present a new method of evaluating the geomorphosite. The method is presented by us/ our team and it was tested in the protected area Ponoare. In the first part of the article, we will apply, for the geomorphosites inventorized here, the other methods of evaluation known worldwide, and after that we will evaluate geomorphosites by following the new method proposed by us, a method which is adapted to geomorphological reality and to the reality of touristic exploitation of the analysed area. There were taken into account the methods developed up to now in the specialized literature, namely: the method of evaluating the touristic value of geomorphosites for the evaluation of the touristic value conceived by J. P. Pralong in 2005, the method developed in 2007 by E. Reynard et al.; the method developed at the University of Modena and Reggio Emilia by P. Coratza and C. Giusti in 2005; and the method proposed at the University of Cantabria by V. M. Bruschi and A. Cendrero in 2005; the method developed by the University from Valladolid by E. Serrano and J. J. Gonzales Trueba in 2005; the method proposed by the University of Minho in 2007 by P. Pereira, the Greek method developed by N. Zourous in 2005 and the Slavonian method proposed in 2012 by B. Erhatic. The results obtained show different quantitative values compared to previous methods, but comparing the rank obtained by each geomorphosite during the evaluation, the rank stays the same. The values are situated in a different deviation compared to other methods, having in view that for additional values firstly the cultural value is reduced in the analysed area.
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