• SOCIETY

    Analysis of Greenhouse Gas Emissions in Bulgaria – Sources, Trends and Reduction Priorities

    Science. Business. Society., Vol. 10 (2025), Issue 3, pg(s) 86-91

    The purpose of this study is to analyze the emissions of greenhouse gases in Bulgaria. The main sectors contributing to greenhouse gas emissions are identified and analyzed. A comparison of net greenhouse gas emissions in the country with the EU average is made and the contribution of the different sectors is analyzed. Special attention is paid to the Land Use, Land-Use Change and Forestry sector. Recommendations are formulated for measures for sustainable reduction of greenhouse gas emissions in Bulgaria in the context of achieving the country’s goals by 2030 for net greenhouse gas removals in this sector.

  • CONSERVING OF THE RESOURCES

    Soil erosion processes and estimation of erosion risk in southeren part of Albania

    Mechanization in agriculture & Conserving of the resources, Vol. 67 (2023), Issue 4, pg(s) 127-129

    Soil erosion and associated nonpoint pollution pose critical problems affecting the economic welfare, food security, and public health of Albania. Each year nearly 60 million tons of sediment are deposited by Albanian rivers into the Adriatic Sea. Because of favorable natural factors and strong human impact over environment during centuries, area of Albania is characterized with high soil erosion rate. In last decades, faster economic growth of the country and lack of soil resources, fresh water, forests etc., reinforce the need for soil protection and soil conservation. The objective of this paper is to quantify the magnitude of soil erosion and its effects on water quality at three levels of intensity—site-specific, watershed, and nation as a whole and to identify high-risk areas for immediate soil erosion control using a
    geographic information system.

  • MECHANIZATION IN AGRICULTURE

    Study of specialized wide-rail agriculture unit for rail farming

    Mechanization in agriculture & Conserving of the resources, Vol. 66 (2020), Issue 2, pg(s) 59-62

    A promising direction for further sustainable development of agriculture not only in Ukraine but also in the world is the introduction of innovative technologies, which should include the track and bridge systems of agriculture. These systems provide the basis for the automation and robotization of most crop production processes, ensure efficient implementation of “precision” and “digital” farming and provide other significant benefits. Scientists have not sufficiently studied the issue in this regard, and there is currently no effective methodology for implementing the potential technical-operational and technological properties of specialized broad gauge means of agricultural production mechanization for the rutting system of agriculture. Therefore, from the point of view of solving the food problem in the world, especially during the COVID-19 pandemic, as well as developing resource-saving technologies based on the principles of the rutting system of agriculture, in accordance with the trends of scientific and technological progress in the field of mechanization – improving the level of functioning of technical means through integrated mechanization, electrification, automation and robotization – this direction of research is relevant. The aim of the research is to substantiate the main advantages and effectiveness of the use of a specialized vehicle for rutting agriculture by justifying its main parameters. As a result of these studies, it was found that the energy saturation level of specialized agricultural vehicles moving in the tracks of a permanent technological track should be 23.5 kW·t−1, in realizing the traction force at the level of 6.37 kN by 1t of their weight. Losses of the field area for the engineering zone when using agricultural equipment with a wheelbase width exceeding 6 m are 5-6%. The economic effect of the use of broad-wheeled agents in wheat cultivation technology is at least 150 € per hectare.

  • On a mathematical model of land-use change

    Mathematical Modeling, Vol. 2 (2018), Issue 4, pg(s) 153-155

    The paper is devoted to a mathematical model of land-use change proposed by Dobson et. al. We formulate and investigate some quantitative properties of the corresponding Cauchy problem. We construct a numerical algorithm for approximate solution of the problem and present some of the numerical results. Their meaning is explained and discussed.