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Date submitted2022-11-11
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Date accepted2023-01-19
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Date published2023-12-25
Evaluation of the efficiency of sorbents for accidental oil spill response in the Arctic waters
The development and operation of new oil fields on the Arctic shelf increases the risks of oil spills, which require the use of oil spill response tools and materials that are efficient in harsh climatic conditions. The question of actual efficiency of sorbents for reducing the level of oil pollution in the conditions of the Arctic and subarctic waters is relevant. The work is aimed at a comparative study of the efficiency of sorbents of mineral and organic origin used by coastal enterprises in the Kola Bay as well as a sorbent based on chitin in model systems simulating real conditions in sea waters. The characteristics of sorption agents were determined applying ASTM F716-18 procedure. Sorption capacity was evaluated in respect of ARCO grade oil, diesel fuel and marine oil. The efficiency of sorbents was estimated in model systems “sea water – oil” at water temperature corresponding to the average annual surface temperature in the Barents Sea. Actual data on sorption capacity of commercial sorbents “Lessorb”, “Novosorb”, a sorbent based on vermiculite and chitin sorbent in relation to potential pollutants of waters were obtained. The dynamics of sea water saturation with oil products at –0.5 (±1) and 10 (±1) °С was determined. It is shown that at higher temperature the concentration of oil products in sea water column (in the presence of an oil film on the surface) is on average four times higher than at low temperature. Kinetic dependences were obtained that describe the content of oil products in water column and near-surface layer of sea water in the presence of the studied sorbents at 5 (±1) °C, corresponding to the average annual temperature in the Kola Bay of the Barents Sea. A method is proposed for evaluating the efficiency of sorbents from the values of regression coefficients characterizing the dependence of oil products content in sea water on the character of sorbent and duration of its action.
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Date submitted2022-03-09
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Date accepted2022-11-17
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Date published2023-02-27
Development of methodology for economic evaluation of land plots for the extraction and processing of solid minerals
The Russian economy has a pronounced resource specialization; in many regions, subsoil use is a backbone or one of the main areas of the economy. In these conditions, the improvement of the methodology for the economic evaluation of lands on which mining enterprises are located is of particular relevance. On the basis of the existing experience in assessing industrial land, the authors present a developed methodology for determining the cadastral value of land plots where mining enterprises are located, taking into account their industry characteristics and the specifics of production and commercial activities. At the same time, cadastral valuation is considered as a specific form of economic valuation. Particular emphasis is placed on the importance of taking into account the cost factors that have the greatest impact on the formation of the cost of land for the extraction and processing of solid minerals, and the method of assessment depending on the characteristics of the object. To carry out theoretical research, the methods of analysis and synthesis of legal and scientific and technical literature in the field of cadastral and market valuation of land were used in the work. The practical part is based on the application of expert methods, including the method of analysis of hierarchies, system and logical analysis. The method of M.A.Svitelskaya was chosen as the basis, which presents a combination of modified methods of statistical (regression) modeling and modeling based on specific indicators of cadastral value. The use of this technique in economic practice contributes to increasing the efficiency of cadastral valuation and the objectivity of its results.
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Date submitted2021-02-05
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Date accepted2021-03-30
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Date published2021-04-26
Assessment of negative infrastructural externalities when determining the land value
- Authors:
- Elena N. Bykova
The work forms and substantiates the concept of land value, based on a new institutional theory. The infrastructural component of the cost of land in the presented concept determines, on the one hand, the efficiency of the use of natural resources, properties, demand for land on the market, on the other hand, the costs, which are determined not only by capital investments in construction of engineering infrastructure, but also by losses associated with restrictions on activities within zones with special conditions for territory use, creation of unfavorable conditions for economic activity, small contours, irregularities and others on a specific land plot, which are external negative infrastructural externalities that create losses of rights holders of land plots that are not compensated by the market, falling within the boundaries of these zones. Methods for assessing the impact of such negative infrastructural externalities on the cost of land encumbered by zones in different conditions of land market activity have been developed and tested, based on an expert-analytical approach (depressed market); the ratio of market values of land plots encumbered and unencumbered by a specific zone, and qualimetric modeling (inactive market); modeling by introducing into the model the factor of presence of zones with special conditions for territory use, based on the grouping of zones according to similar regulations for use, or by introducing the parameters of this factor (active market). Methods for taking into account spatial deficiencies and compensating for restrictions and prohibitions on activities on the territory of land plots with an individual market assessment are proposed.
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Date submitted2017-09-22
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Date accepted2017-11-17
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Date published2018-02-22
The problem of cadastral appraisal of forest lands taking into account the infrastructure of the forestry fund
- Authors:
- V. F. Kovyazin
- A. Yu. Romanchikov
Forest lands are the main means of production in the forest sector. For the most territories in the Russian Federation there are established methods of cadastral appraisal, but not for the forest regions taking up 2/3 of the country’s area. In 2002 Russian Government made an attempt to solve this problem and recommended a method of cadastral appraisal for the lands of the forestry fund. However, the method did not find practical application and was dismissed in 2010, and no substitution followed. In each subject of the Russian Federation private appraisers offer their own options of forest land valuation, but their results differ significantly even for the lands with comparable species of wood, productivity, site quality and age composition of the stand. Moreover, valuation organizations do not take into account forest infrastructure. Authors propose a universal method suitable for the entire territory of the country, which will allow to calculate specific cadastral value of the forest lands taking into account taxation indices of the wood stands growing there. The method is suitable not only for the objective cadastral valuation of the forest lands – reasonable rental payments will provide an opportunity to develop transport infrastructure in the forestry fund, especially forest roads and bridges, and to make timely arrangements for plant maintenance, forest protection and reproduction, which will have a significant influence on social and economic development of forest regions in Russia.
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Date submitted2014-11-15
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Date accepted2015-01-11
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Date published2015-10-26
On the necessity of taking into consideration the increment of the growing stock in cadastral valuation of lands of forest fund
- Authors:
- V. F. Kovyazin
Currently there are no methods of cadastral valuation of forest land although the area covers 2/3 of the territory of the Russian Federation. In 2002, the Federal Land Inventory Service of Russia proposed a method but it failed to find practical use due to the complicated calculation of the cadastral value according to the Faustmann formula and lack of open access to some information about the forest fund and was totally abolished seven years later. There were several reasons for abolishing the method and the main reason was lack of methods to predict a supply of wood to the age of maturity when the cadastral assessment was carried out in the plantations under the age of main felling. The author proposes to take into account the current growth rate of the growing stock per year on one hectare of land in the cadastral evaluation of forest fund lands. Based on the increment of the growing stock it is possible to construct a mathematical model of changes in the forest reserve to the age of maturity. The author suggests using the existing forest inventory materials to build the model. By updating existing data you can obtain any inventory indices including the growing stock in different age plantations. The resulting inventory of plantations at the age of maturity is recommended for cadastral valuation of the forest fund lands. The calculation of the cadastral value of forest land for one taxation quarter with and without current increment of the growing stock is given and the difference is 37 %.
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Date submitted2010-07-16
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Date accepted2010-09-15
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Date published2011-03-21
Assessment of land in rural settlements
- Authors:
- E. Yu. Ionova
Cadastral valuation of lands held at the state level for all categories of land, but its results are irrelevant for the solution of management tasks by local authorities in rural areas. Some examples of model land evaluation of rural settlements at the level of the municipality using the expert method, the rank correlation test and K-Link-Welles, and add MS Excel «Search solutions».
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Date submitted2009-10-13
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Date accepted2009-12-14
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Date published2010-09-22
The evaluation of geodynamic consequences оf long-term exploration of lower cretaceous sediments at the Yamburg oil-gas condensate field with join of additional wells
Within the framework of the engineering design of the join up of additional wells of Lower Cretaceous sediments at the Yamburg oil-gas condensate field the evaluation of geodynamic consequences of long-term exploitation of the mentioned field was performed, as well as the hazardous geodynamic process permanent survey program was developed.
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Date submitted2009-08-17
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Date accepted2009-10-25
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Date published2010-02-01
The valuation of cost of the mining company in the reorganization
- Authors:
- D. M. Dmitrieva
- T. V. Ponomarenko
There are different approaches and methods of valuation of cost of the company. Valuation of cost of the mining companies differs from a valuation of the others by some features. The most important of them is necessity of valuation mineral resources belonging to it. In work valuation of cost of the mining company is considered (for example, JSC «SOBR»). Company cost is evaluated with the positions of the two approaches: the cost and profitability, with allowance for the features inherent in mining branch. The problems arising at valuation of cost of the mining company are formulated.
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Date submitted2009-07-02
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Date accepted2009-09-06
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Date published2010-04-22
Problems in economic evaluation of natural resources
- Authors:
- M. A. Nevskaya
The article deals with the problem of legislative and methodological problems in the assessment of natural resources. The results of the review of Russia's resources and civil law are given. Analysis of contemporary approaches to the assessment of natural resources is given. It is concluded on the need to make the economic evaluation of the active element of environmental management.
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Date submitted2008-11-14
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Date accepted2009-01-04
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Date published2009-12-11
Intangible assets are the most important reserve for efficiency upgrading of enterprises engaged in the field of mineral resources utilization
- Authors:
- E. A. Shelkov
The role of intangible assets in activities of enterprises engaged in the field of this country’s mineral resources utilization is considered. Their insignificant specific weight in assets is pointed out as well as their slight reactivation in economic turnover and respectively in drawing of profit by domestic enterprises of Mineral and Raw Materials Complex. Basic reasons of the fact why at present intangible assets are one of little used reserves for increasing efficiency of enterprises carrying out activities in the field of mineral resources utilization are analyzed. Principal directions of intangible assets of MRMC enterprises record keeping, evaluation and use are suggested on the basis of gained world experience.
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Date submitted2008-11-26
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Date accepted2009-01-01
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Date published2009-12-11
Strategy modelling of jaking decisions at ecological and economic evaluation of oil project
- Authors:
- M. V. Markhasina
The supposed methodological approach to the evaluation of oil investment project is based on the principle of correlation of profits and expenses, nature protection expenses included at their early stage. The advantage of this analysis is the possibility of making project analysis of ecological risks based on the method analysis of taking decisions and the analysis of the economical results. The account of the ecological factor of the oil project model of evaluation is based on the developed interaction of the technological, ecological and economic information. It’s basis is project documentation, project influence materials, evaluation upon the environment and accountants report.