ISSN 2285-6064, ISSN CD-ROM 2285-6072, ISSN-L 2285-6064, Online ISSN 2393-5138
 

Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. VII
Written by Irina-Ramona PECINGINA, Roxana-Gabriela POPA

The „Gilort River” Natural protected area lies in Gorj, Getic Subcarpathians in the Ciolanei Depression and is a site of community importance forming part of the Natura 2000 European network. The purpose of „Gilort River” protected area is to protect and conserve important species at national and community level (Lutra lutra, Bombina variegata, Eudontomyzon mariae, Gobio albipinnatus, Barbus meridionalis, Sabanejewia aurata). The paper presents the methodology for assessing the conservation status of mammal’s species of Lutra lutra. There have been carried out evaluations in the field, between Januarys to April 2015, with a frequency of 3-4 per month, applying the multi-criteria method, which was based on the following criteria: local distribution, population, habitat of the species and prospects. Following the evaluation and presentation of the distribution of the Lutra lutra species and of the areas favorable for its protection, it was shown that there were traces of the presence of the otter in the river Gilort, on sandy beaches in inaccessible areas difficult to access, close to areas with greater depth of water, being identified a maximum of two family groups of otters, meaning 7 individuals. The evaluation demonstrated that the conservation status is unfavorable and inadequate.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. VII
Written by Marius SABADAS, Marcel DIRJA, Mihai MAXIM

The study aimed the development of the rural environment in Aghiresu area, for a sustainable and inclusive economy, necessary for the ambitious targets of the member states of the European Union. The National Rural Development Program is considering projects to support agricultural practices that protect the environment. Through sustainable agriculture, the natural space is preserved, the landscape is protected, and biodiversity is defended. Identifying future projects, favorable to the Aghiresu area, Cluj County is an important factor for sustainable rural development and environmental protection. Through the active involvement of local authorities and financial support from the European Union, projects that are important for the local community and also for neighboring areas have been developed. Through inadequate farming practices the soil degradation has been increased. Measures for soil protection and restoration by reducing the amount of fertilizers and pesticides have been shown to have beneficial effects on the quality of agri-food products, animal welfare and human health. Agri-environment schemes have been beneficial for the protection of soil resources. Soil improvement and waste treatment measures lead to a healthy environment.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. VII
Written by Öner ÇETİN, Neşe ÜZEN

To get an appropriate yield and production for winter wheat, it must be irrigated. Cotton and corn must be almost irrigated in the regions grown. Amount of irrigation water of 4000-4500 m3 ha-1 need for optimum wheat production. More than 50% of the country’s cotton production is in Southeastern Anatolia Region of Turkey and cotton need amount of irrigation water approximately 10000 m3 ha-1 for an appropriate production using surface irrigation methods. However, the amount of irrigation water of 5 000-6 000 m3 ha-1 is enough if modern irrigation technologies such as drip irrigation are used. Similarly, amount of irrigation water more than 10000 m3 ha-1 has been used for corn production under the surface irrigation conditions and it is possible to save nearly 40-50% of water using drip irrigation method in the same region. One of the most important ways of ensuring sustainability of irrigated agriculture is to use micro irrigation, and it may help in saving significant amount of water and increase the quality and quantity of produce. Thus, it is possible to achieve both higher water productivity and higher yield by means of drip irrigation.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. VII
Written by Cristiana SIRBU

The paper aims to present the ways to create a common mechanism to improve the transport systems between Romania and Bulgaria. The aim of is to have a well-connected region between the two countries. The paper will present the key areas, highlighted by simply analysing the flux of the transport, for construction and modernization the routes between Romania and Bulgaria

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. VII
Written by Constantin Dragos MOTCO, Simona Gabriela CIOCAN, Daniel BUCUR

This paper aims to identify deforested surfaces in the studied area, fact that determines the intensification of soil erosion process and furthermore it increases the alluvial effluent witch disrupts the functioning of the hydroelectric power plant in the projected parameters. In 1990 the area covered with forest vegetation in the Sihastria watershed was about 147 ha, but due to the clear-cut on the areas that were returned to the right owners, the wooded area was reduced to 100 ha, from which, as a result of excessive cuts on 39 ha the density of the trees is very low. The Sihastria small hydroelectric power plant is located at the confluence of the Sihastria stream with Negrisoara River (25.5253090 eastern longitude and 47.19178470 northern latitude). The hydropower plant constructive elements consist of: intake, desilting tank, fore bay tank, penstock pipe, and power house and tailrace channel. In order to determine the causes that led to the clogging of hydrotechnical constructions, trips were carried out in the analyzed watershed, during the vegetation seasons of the last three years (2015-2017).

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. VII
Written by Zamfir PANTER, Gabriela ROSU, Florentina MATEI

The study aimed to establish the optimum conditions for biological treatment of the leachate from the Glina household waste disposal site. The variation in nitrate, nitrite, phosphate, ammonium and suspended matter content in relation to contact time between microorganisms and leachate was analyzed to highlight the activity of microorganisms at different contact times. Experimental results have shown that the highest efficiency in the removal of nitrates and nitrites corresponds to the contact range of 16-24 hours, while the degradation efficiency is very low for contact time below 8 hours. The higher content of leachate suspensions was recorded over 5 days of contact, after which a continuous decrease was achieved by the end of the experiment. Positive inflection on biological purification by lowering the content of ammoniacal nitrogen, phosphorus, oxygen content and biochemical oxygen content between 16 and 32% after 20 hours of contact time.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. VII
Written by Luminita-Georgeta POPESCU, Roxana-Gabriela POPA, Emil-Catalin SCHIOPU

The paper aimed to present the impact of thermal power plant from Oltenia Mining Basin and the same time to present some possibilities of valorization of the ash and slag that results from coal (lignite) burning in the large boiler of this thermal power point. The energy production in thermal power plant involves burning of huge amount of coal - lignite. Due to high ash content of lignite, the electricity production in thermal power plants generates significant amounts of slag and ash, which are stored in large deposit that involves the coverage of large areas of land generating environmental impact by air, water, and soil pollution. The reuse of ash and slag as raw material for other industry represent an economic way to reduce the environmental impact and represents an important way to preservation of natural resources.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. VII
Written by Orhan A. ATAY, Kamil EKİNCİ, Hüseyin KAÇAR, Serdar ÜÇOK, Barbaros S. KUMBUL

Densification of biomass materials can be achieved through pelletization technology, which can be used to produce useful, high value added, and salable pellets. In this study, pellets were made using peach pit (PP) with Lignite Coal Dust - coal powder (CP) at specific ratios. Pelletization was performed by a pelletizing machine having flat die and roller with a capacity of 50-60 kg/h. The pellet die had an inlet hole diameter of 11 mm, an outlet hole diameter of 7 mm and a die height of 25 mm. The pellets were the mixture of PP and CP: 100% CP, 90%CP+10%PP, 75%CP+25%PP, 50%CP+50%PP, 25%CP+75%PP, 10%CP+90%PP, and 100%PP as dry weight basis. Proximate analyses and higher heating values of the pellets were determined. Thermogravimetric and differential thermogravimetric analysis were performed. The results were presented in the study.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. VII
Written by Sebastian Cristian Radu PLUGARU, Viorel DAN, Xenia Paula MENTIU

A number of different physicochemical and biological processes are commonly used to remove heavy metals from industrial wastewater before being discharged into the environment. Conventional physicochemical methods, such as electrochemical treatment, ion exchange, precipitation, osmosis, evaporation, are not cost-effective and some of them are not environmentally friendly. On the other hand, bioremediation processes show promising results for metal removal, even when they are present in very low concentrations if the physicochemical elimination methods fail to function. Moreover, this is a cross-compatible and economically feasible option. The bioremediation strategy is based on the high metal binding capacity of biological agents, which can remove heavy metals from contaminated sites with high efficiency. In this sense, micro-organisms can be considered as a biological tool for metal removal as they can be used to concentrate, remove and recover heavy metals from contaminated aquatic environments.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. VII
Written by Constanta BORONEANT, Dan BALTEANU, Monica DUMITRASCU, Diana DOGARU

The Romanian Plain, covering a surface area of about 52 600 sq.km and stretching along the Danube, is one of the largest agricultural regions in the European Union. It presents diverse ecological conditions in four major zonal units, steppe, silvo-steppe, forest zone and its large Danube floodplain. In this context, the assessments of climate change, specifically of those climatic elements like temperature and precipitation which may have an important impact on various economic sectors, represent a necessary scientific support for end-users to envisage sustainable development strategies. This paper presents 1) the evaluation of the regional climatic model RCA4 driven by the ERA-Interim reanalysis and five general climatic models under historical forcing, 2) the adjustment of the bias identified in the simulations compared to the observation data using the Delta Change method, and 3) the projected changes of seasonal mean temperature and precipitation in the Romanian Plain for the mid-term period 2021-2050 under the RCP4.5 scenario compared with the reference period 1971-2000 of ROCADA observations.

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