https://elib.belstu.by/handle/123456789/20519 2026-04-07T03:34:45Z 2026-04-07T03:34:45Z Zorin, V. P. https://elib.belstu.by/handle/123456789/20860 2020-10-23T07:25:29Z 2016-01-01T00:00:00Z

Title: The system and methods of forest fund inventory on the bases of information technologies providing sustainable forest management Authors: Zorin, V. P. Abstract: The article is dedicated to introduction of new methods, means and techniques of forest growing, its pro-tection, sustainable forest treatment, providing increase of forest productivity and resistance, development of forest resource and social-economic role, and rational mu ltifunctional application of forest resources. The author describes newly introduced systems and methods of forest inventory fund on the bases of information technologies providing conversion of the Belarusian state forestry data base into the European one. Models of planning of forest stand growth and actualization are described. Also the article contains information on some mobile means of obtaining taxation data, indexes / indicators for inventory of forest fund with the help of new methods and technologies. The following aspects are under investigation: computer tablet sand forest taxation data input, system of taxation data transfer (by Internet), satellite navigation, and delimitation of forest areas. The author analyses forest growth forecast models and regression models.

2016-01-01T00:00:00Z Mashkovsky, V. P. https://elib.belstu.by/handle/123456789/20858 2020-10-23T07:25:29Z 2016-01-01T00:00:00Z

Title: The average trunk diameter distribution rows in the natural diameter classes with considering of the tree quality categories and methods of their use for the rated cutting area commodification Authors: Mashkovsky, V. P. Abstract: The article presents of the stem diameter distri bution rows in the natural diameter classes with considering of the trees quality categories. These rows are formed of six main tree species in Belarus: pine, spruce, oak, birch, black alder and aspen. The use of such series together with the assortment tables allows you to commodification of the rated cutting without the use of timber quality tables. Method of calculation is described in detail. To perform this operation it is necessary for each element of forest in the stand to know the average diamet er and height, absolute or relative density, and the proportion of merchantability trunks or class quality of wood. For the case where the proportion of the merchantability trunks don’t known, but there is only class quality of wood, the article presents the average percentage of merchantability trunks depending on the species and class quality of wood. Present method of fitting the series averaged distribu tion of the natural thickness steps of the concrete forest element preserves all the relationships that occur between the total number of trees, the number of merchantability and fuel trunks on the diameter clsass and for the whole element of forest.

2016-01-01T00:00:00Z Mashkovsky, V. P. Sevruk, P. V. https://elib.belstu.by/handle/123456789/20856 2020-10-23T07:25:29Z 2016-01-01T00:00:00Z

Title: The technical and economic maturity of spruce stands Authors: Mashkovsky, V. P.; Sevruk, P. V. Abstract: Multipurpose use of forests determines the need of the organization comprehensive forestry and reasonable, continuous, inexhaustible, rational and ba lanced forest harvesting. Standard of forest cutting is cutting age. The most important factor influencing the cutting age is the maturity age. In our article the analysis possible losses from late delivery of stands in the cutting on the basis of the technical and economic maturity. The ag e of this maturity determined by some growth tables of spruce stands on site index. After calculation the average increase of large and medium timber, but also the average increase of the cost of the wood volume is defined age of maximum the both increase using the methods at smoothing the empirical dependences. To calculate a possible loss of forest harvesting was used the growth tables of modal stands of V. F. Baginskiy. The use of modal tables in calculation will correspond to the r eal state of forest fund. As a result of calculation we can conclusion those minimum losses in exploitable forests for the most beneficial growing conditions occur in the beginning of the age of maturity, with the increase the site index increases the cutting age with minimum losses, which can reach a maturity senior class. The economic ma turity begins about 10 years later than technical maturity. This is due to the fact that the age of economic maturity affects the quality of the timber. The use of these materials will evaluate the plan of cutting and minimize losses in his planning.

2016-01-01T00:00:00Z Minkevich, S. I. Sevruk, P. V. Buy, A. A. https://elib.belstu.by/handle/123456789/20854 2020-10-23T07:25:29Z 2016-01-01T00:00:00Z

Title: Analysis of piece by piece methods of round wood measurements and volume estimation Authors: Minkevich, S. I.; Sevruk, P. V.; Buy, A. A. Abstract: Based on literature review piece by piece methods of round wood measurements employed in different countries are briefly discussed. The main working method of upper diameter (STB 1667-2012, GOST 2708–75) was researched (in comparison with the control data of formulas Smaliana and a truncated cone). An analysis of round wood volume tables from GOST 2708–75 in comparison with control data showed positive values of deviations that indicates larger values in standard volumes (GOST 2708–75) (up to 13% for medium-sized (24 cm) and large (over 24 cm) round wood). However, for logs with taper coefficient more than 1 cm/m) negative deviations are characterized, which, in turn, suggests an underestimation of wood volume in the standard tables in relation to the control data of formulas Smaliana and truncated cone (–18%). Formula Smaliana versus frustoconical formula underestimates the timber volume (however, not more than 1%). Obviously, both of these formulas can be used to determine the amount of measurement errors by the method of upper diameter. In our view, it is advisable to clarify the method of upper diameter based on the average value of taper coefficient in stacked batches of round wood (entering of amendments to the volumes from GOST 2708–75 on a log taper coefficient of real value).

2016-01-01T00:00:00Z