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. XIV
Written by Georgian ROTARU, Gabriel PREDUȘCĂ, Liana Denisa CÎRCIUMĂRESCU, Emil DIACONU

This study presents a predictive data acquisition system that integrates the Arduino Leonardo development platform with the Python programming language for automated environmental monitoring. The system employs a suite of sensors - DHT22 for temperature and humidity, BMP180 for atmospheric pressure, and MQ-7 for gas concentration - to collect real-time data. These measurements are transmitted to a Python-based processing environment, where time-series forecasting algorithms, including ARIMA, are applied to analyze trends and predict environmental variations. The system offers a cost-effective and adaptable solution for air quality assessment, meteorological research, and environmental data analysis, facilitating timely interventions and enhanced resource management.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIV
Written by Bogdan BODEA, Cristian Mihai ENESCU, Ovidiu Ioan HÂRUȚA, Camelia Elena MOGA, Ruben BUDĂU, Adrian Ioan TIMOFTE

This study evaluates the success of Scots pine sapling plantings conducted in 2023 on the waste deposits at the Recea Șuncuiuș Quarry in Bihor County. Four experimental plots were established, divided into two slope categories. Half of the saplings received fertilizer, and for all saplings, survival rates were assessed, along with measurements of diameter and height growth. The findings indicate no significant differences in sapling growth between the slopes, and the application of fertilizer did not notably affect their development in the first year after planting. However, in the second year, significant changes were observed. The slope became a negative factor, while fertilization had a significant positive impact on growth in terms of diameter and height, particularly under the harsh conditions of the exceptionally dry and hot summer of 2024.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIV
Written by Alexander PETROV, Svetla STOYKOVA, Diyana DERMENDZHIEVA, Gergana KOSTADINOVA, Milen STOYANOV, Georgi PETKOV, Stefka BOYANOVA, Georgi BEEV

Groundwater, a vital resource in Bulgaria, is increasingly at risk of contamination from anthropogenic activities. A study in the Stara Zagora district for a year, situated in an area with strong anthropogenic pressure (urbanization, 4 TPPs, open-pit mining of lignite coal, large military training ground, intensive agriculture) assessed the groundwater quality of 6 wells (Ws) and 6 springs (Ss), based on 48 samples, analyzing 11 physicochemical (colour, taste, odour, pH, EC, TH, Cl-, SO42-, NH4+, NO3-, and OM) and 3 bacteriological (AMO, E.coli and Enterococci) parameters. The groundwater partly meets the Bulgarian standards as a natural resource (W1, W2 - summer, autumn and winter, W3 - summer and winter, S1, S2, S5 - autumn, and S6) and as a source for drinking (W1 and S2 - except for spring, W2 - except for spring and autumn, S1 and S6 - except for summer, autumn and winter). The deviation from the norms of groundwater as a natural resource results from pollution with NH4+, NO3 and OM, and for drinking purposes: with Е. coli, enterococci, AMO, OM, NH4+ and NO3. Agriculture and livestock waste were identified as major pollution sources. Many positive and negative Pearson correlations existed between controlled groundwater parameters. Immediate treatment of contaminated Ws and Ss, and regular monitoring and health risk assessments are essential to mitigate groundwater pollution and ensure safe water for consumption.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIV
Written by Mihai IVANOVICI, Maria ȘTEFAN, Angel CAȚARON, Adrian GHINEA, Gheorghe OLTEANU

It is known that meteorological parameters, among others, are highly determinant for the growth of the agricultural crops. On the other hand, vegetation indices computed on remote sensing data are widely-used for crop monitoring. In this paper we focus on temperature, one of the determinant meteorological parameters, and the Normalized Difference Vegetation Index (NDVI), the most used vegetation index. We use temperature and NDVI time series, the latter one computed based on Copernicus data. Based on the hypothesis that effect accumulations of temperature in time determine the plant age and growth and, implicitly, its vegetation status, we study the influence of temperature on NDVI and attempt to model it. We present a use case for the monitoring of two potato crops during the 2023 and 2024 seasons in Braşov area, Romania and formulate the conclusions.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIV
Written by Vanya IVANOVA, Zhulieta ARNAUDOVA, Rossitza MERANZOVA

The use of remote sensing technology can facilitate the acquisition of data pertaining to crop evapotranspiration, which can in turn inform precision irrigation practices. This is achieved through the analysis of satellite image data. The acquisition of accurate information regarding the utilisation of water is of significant importance within the domain of agricultural water management and crop production, particularly at the scale of human impact on the natural water cycle, in the context of global climate change and the increased prevalence of droughts. The objective of this study is to investigate and provide a summary of the potential for using satellite imagery and in situ measurements for meteorological factors, crop vegetation and soil water content, with a special focus on the assessment of evapotranspiration. The studies conducted are of significant value in predicting the potential water requirements of plants, the capabilities of irrigation systems and the efficient utilisation of irrigation water in agriculture through the implementation of adaptive irrigation regimes.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIV
Written by Călin Ioan IOVAN, Tudor Andrei FLORIŞ, Georgiana Denisa BOJINCĂ

The case study was carried out with the help of satellite technologies for the spatial positioning of the various characteristic points of detail in the town of Suiug, Bihor county, and has as its objective the spatial positioning of the points of detail with the GPS system, through the post-processing kinematic method (pseudokinematics) Stop and Go, for the realization of the topographic plans in digital format, and respectively, of the digital models of the land, necessary for the rehabilitation and expansion of the roads in the locality. Trimble R3 receivers were used as base, and Trimble R4 as rover. When recording data from the field, we worked with the Trimble Digital Fieldbook and Trimble Access programs, and the processing with the Trimble Total Control (TTC) program. The coordinates of the base and initialization points of the rover were determined with the Trimble R4 receiver, with information acquired from the Oradea GNSS station, within the ROMPOS system. Mapsys 10.0 and Surfer programs were used to obtain the plan and land model in digital format.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIV
Written by Ramona-Carmen HĂRȚĂU, Simona GAVRILAȘ, Claudiu-Ștefan URSACHI, Simona PERȚA-CRIȘAN, Florentina-Daniela MUNTEANU

This study assesses the groundwater quality at the CET HIDROCARBURI ARAD site using a Global Pollution Index (IGP*) methodology that integrates multiple water quality indicators concerning legal thresholds. Water samples from three monitoring wells were collected annually over 11 years (2010-2020) and analyzed for pH, total suspended solids, fixed residue at 105°C, and chemical oxygen demand. The findings reveal that 93.94% of the samples exceeded acceptable limits based on 2008 regulatory references, with pollution levels surpassing ecological thresholds, particularly in Control Well No. 3, indicating persistent ecological stress. Despite this, long-term trends suggest overall groundwater stability, with 78.79% of historical data (2008-2017) falling within permissible ranges. Statistical analysis highlighted variations in pH and COD, suggesting localized impacts from nearby facilities such as a reagent store. The study recommends implementing a sustainable, site-specific water management plan supported by real-time monitoring and targeted assessments of emerging contaminants to enhance environmental protection and risk mitigation.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIV
Written by Nina-Nicoleta LAZĂR, Mădălina CĂLMUC, Ira-Adeline SIMIONOV, Maxim ARSENI, Mihaela TIMOFTI, Puiu-Lucian GEORGESCU, Cătălina ITICESCU, Violeta DOMNITEANU

This study aimed to analyze the concentrations of iron (Fe), copper (Cu), and zinc (Zn) in pontic shad (Alosa immaculata) and assess the influence of factors such as capture year, length, and weight on these concentrations. Fish samples were collected during the 2023 and 2024 fishing seasons. After recording the length and weight of each specimen, the muscle underwent acidic digestion. The concentrations of Fe, Cu, and Zn were then determined using a Total Reflection X-ray Fluorescence (TXRF) spectrometer. The results revealed an overall increase in chemical elements concentrations from 2023 to 2024. While Cu levels showed no correlation with length or weight, Fe and Zn exhibited strong correlations with these parameters.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIV
Written by Flavia Mălina CIOFLAN

After 1990, land use categories in non-collectivized hilly and mountainous areas experienced distinct changes, influenced by various socio-economic and environmental factors. This study focuses on cadastral sector 15 within the administrative territorial unit of Vîrfurile, Arad County - an area that was not subjected to collectivization. The objective is to analyze the current state of land use categories using geomatic applications. Plot localization was achieved using orthophotoplans, while spatial positioning was conducted via GNSS technology employing the Real-Time Kinematic (RTK) method, with data transmission between receivers facilitated by internal radio. Base point coordinates were determined using data from the GNSS station in Gurahonț. The coordinates of the characteristic detail points were processed with the MapSys10 software and overlaid onto the orthophotoplan. Analysis of the results reveals that several plots formerly designated for agricultural use are now partially covered by arboreal forest vegetation, indicating a significant process of natural succession and land use transformation.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIV
Written by Mihaela PREDA, Veronica TĂNASE, Nicoleta Olimpia VRÎNCEANU, Florența JAFRI, Mihaela COSTEA, Bogdan-Ștefan OPREA

Polycyclic aromatic hydrocarbons (PAHs) are organic pollutants composed of two or more aromatic rings of carbon and hydrogen atoms. PAHs are characterized by low water solubility, low vapor pressure, high melting and boiling points. As the molecular mass increases, the lipophilic character increases, making them more persistent in the environment. Incomplete combustion is the main source of PAHs. This study evaluates PAHs contamination in soil samples collected from 30 locations in Bucharest, focusing on potential pollution sources such as industrial activities, vehicular emissions, and domestic sources. Industrial zones and high-traffic areas recorded the highest total PAH concentrations at 1.06 mg/kg and 1.01 mg/kg, respectively. Diagnostic ratios analysis suggests combustion as the predominant source of PAHs.

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