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. XII
Written by Irina-Ramona PECINGINA, Roxana-Gabriela POPA

In the current agro-economic context, for the rural development of Gorj County, it is important to identify new, attractive, but also economically efficient businesses. Starting from the fact that the interest in Goji fruits has increased significantly, along with their use in organic food and in traditional medicine, and the adaptation of this shrub to the pedoclimatic conditions in Gorj County, if the culture technology is respected, this study present the possibility of establishment and capitalization of a culture that is not specific to the area, but which, through its characteristics, can adapt to the pedoclimatic conditions in Gorj County. Following the economic analysis, it is demonstrated that this business has a positive impact on the sustainable development of the rural area of Gorj County, on the economy, on the social life and on the environment, by capitalizing of agricultural land, creating jobs, promoting the area and increasing the income of entrepreneurs.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XII
Written by Ana Maria PETRUTA, Dragoș DRĂCEA

The paper presents a risk assessment for the management of contaminated sites. For defining the solutions for management of petroleum products storage and distribution sites there were developed two main activities. The first one consists in a detailed site investigation using a conceptual model to define its geological, hydrogeological characteristics and surely the contamination level. The second activity is dedicated to the assessment of risk generated by the soil, subsoil, air and groundwater contamination, by using a professional software applied to a real case study. The results showed that for carcinogenic and non-carcinogenic compounds the risk is above the thresholds according to the legislation. The conclusions of this analysis allow establishing the measures to mitigate this risk, based on a feasibility study and on the best solutions for site remediation (soil and groundwater).

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XII
Written by Mykola KHARYTONOV, Mykhailo BABENKO, Nadia MARTYNOVA

The major goal of this case study was to estimate the impact of two soil amendments on soil fertility, grain crops yield, and quality. The greatest effect of increasing sweet sorghum biomass produced in loess like loam has been obtained using sewage sludge (SS) at the rate of 80t/ha. Such a reaction has become appropriate to the introduction of nutrients into the "young" soil. The SS applying by rate of 60 t/ha had little effect on the increase in the content of zinc and copper in sunflower seeds in the experiment managed on black soil. Trace concentrations of lead and cadmium are recorded. The addition of vermicompost and a solid fraction of digestate at a rate of 40 t/ha led to an increase in the corn grain yield obtained on black soil at the 20.1 and 35.0%, respectively. The greater starting effect on urease activity was recorded from the introduction of vermicompost compared to the solid fraction of the digestate. The application of the solid fraction of the digestate had a positive effect on the activity of phosphatase in the topsoil in the first part of the season of vegetation.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XII
Written by Cristinel CONSTANDACHE, Ciprian TUDOR, Laurenţiu POPOVICI, Vlad RADU

The research carried out aimed at capturing the structural and qualitative changes, the overall evolution of forest ecosystems on degraded lands and highlighting the types of effective cultures on different categories of degraded land. The researches were carried out in the period 2017-2018 in research plots located in perimeters for the improvement of degraded lands, in representative situations. In the paper are presented synthetically the data regarding on the characteristics of forestry cultures in the forest-steppe site, realized in different compositions on lands with various forms of degradation. On very strongly eroded and ravenous lands, the forestry cultures made with black pine in intimate mixture with xerophytic species and shrubs, gave good results. On moderately to heavily eroded lands, mixed cultures with oak and different species, gave good results, in association them in biogroups or grouping at least 2 rows of oak interleaved with accessory species and shrubs. The obtained results offer particularly valuable information for the scientific substantiation of future afforestation compositions and of the silvotechnical works for the installation and tending of forestry cultures on degraded lands.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XII
Written by Cristian Mugurel IORGA, Maria Cătălina ŢOPA, Mihaela Marilena STANCU

The ecological reconstruction of the sites contaminated with petroleum products is necessary to restore the geological environments affected by the economic activities specific to the petroleum industry. The purpose of ecological reconstruction is for the site to be returned to the environment for the resumption of economic and landscape functions, without presenting risks to the environment and human health. Decontamination technologies are based on various bioremediation methods. In many cases, significant amounts of soil are required to fill the resulting excavations and to systematize the land to complete the ecological reconstruction work. In the present study, the possibility to use sludge collected from a municipal wastewater treatment plant in the ecological reconstruction is presented. Both, the presence of hydrocarbon-degrading bacteria and the geotechnical characteristics make it possible to use the waste dehydrated sludge for the ecological reconstruction of the sites contaminated with petroleum products.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XII
Written by Ghiţă Cristian CRAINIC, Florin COVACI, Nicu Cornel SBĂU, Silviu Ioan SICOE, Flavia IRIMIE (CIOFLAN), Marinela Florica BODOG, Călin Ioan IOVAN

The introduction of areas with a different use into the forest fund is relevant for several reasons considering the area of the forest fund in our country which is below the European average. In recent decades, silvo-pastoral systems, represented by common pastures with partially afforested meadow, have undergone a series of transformations. In a great measure they have been abandoned, which is why successions of pioneer species, with low ecological and economic value, have been triggered on these surfaces. As a result, the utility of these silvo-pastoral systems has been reduced considerably, in some cases their introduction into the forest fund being opportune or even necessary. The current legislation regulates the possibility of introducing into the forest fund some areas occupied by forest vegetation in compliance with some functional and administrative conditions - the consistency index > 0.4, the necessity to prepare a forestry management plan, the observance of the forestry regime, etc. The works necessary for the introduction of the silvo-pastoral systems into the forest fund involve a series of specific activities, namely precise delimitation and spatial positioning of the related areas, their mapping and evaluation, the establishing of the complexity of necessary silvotechnical interventions and, last but not least, the ensuring of their ecosystem stability. As a consequence, these works will be executed in stages, depending on the complexity of the conditions characteristic to these activities.

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