Blinkov, Ivan
Preferred name
Blinkov, Ivan
Official Name
Blinkov, Ivan
Main Affiliation
Email
blinkov@sf.ukim.edu.mk
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Item type:Publication, Reforestation in Macedonia: History, current practice and future perspectives(Reforesta, 2017-07-01); ; Maletić, VladimirThis paper presents data about forestry and reforestation in the Republic of Macedonia. The country is characterized with great diversity of natural conditions and rich floral and faunal biodiversity Forests in Macedonia cover 38% of its territory. About 71% represent coppiced and degraded and 29% tall forests. Historical, social and natural conditions caused gradual deforestation, forest and land degradation. Foundations of artificial afforestation were laid in the first decade of XX century. First reforestation started already in 1913/14 and continued, with various intensity, in the next decades. In the period between two world wars a foundation of modern forestry was established, as forestry education, scientific work etc., to help dealing with reforestation of waste bare and erosive lands. The most intensive reforestation was performed in 1971-1990 and during the following years significantly decreases. There is room for improving of some aspects of the reforestation, in aim to improve survival and development of the young stands. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Use of modern geomatic techniques for creating and updating a green cadastre of urban trees and shrubs: a case study of Kumanovo city river bank(Ss. Cyril and Methodius University in Skopje, Faculty of Forestry in Skopje, 2018); ; The goal of this paper is to implement modern, up-to-date, geomatics technique and technologies in the environment. The base is made in GIS software, a GPS device is used to record detailed points on the field and for recording and preparing a new orthophoto was used a modern sophisticated drone DJI Mavic Pro. QGIS (Quantum Geographic Information System), as a key software, was used for computer data processing and recordings obtained from the field research, and other utility programs were used to perform the tasks. The subject of the article is the Kumanovo city promenade in Macedonia, which is a convenient place to try and implement this data processing method. The results obtained give us a map of the entire urban dendroflora on the river bank in the city of Kumanovo. In fact, an inventory of all trees and shrubs was carried out, 4 projections were prepared with the help of modern applications, and as the ultimate goal, and a web digital map of the riverbank was prepared. This method can be applied in forestry, agriculture, water management, geodesy, space planning, sustainable development and environmental protection. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Рачунање R – фактора (фактор ерозивне енергије кише) за потребе моделирања губитака земљишта помоћу RUSLE методе на основу годишњих падавина(Association of graduate engineers in torrent control of Serbia and University of Belgrade, Faculty of Forestry, Belgrade, Kneza Viseslava 1, 11030 Belgrade, 2022); ; Trendafilov, BozhinThe USLE / RUSLE method is the most widely used method in the world for calculating erosion intensity expressed as soil loss. IN the latest period, a map of soil loss EU was made by this method. One of the key parameters for applying the RUSLE method is the R - erosive energy factor for which a global world map model has been created too. In the Republic of North Macedonia there are no available data to use original access for calculation this factor. That is why the approach is based on the annual precipitations. Several equations developed in different parts of the world were analyzed. Calculation was done for data from 17 gauges stations in the country, and at the same time modeling has been done for the whole country on the basis of altitude. Comparison of the obtained values with the results for the border areas and high mountains in Greece and Bulgaria, showed that they are realistic and enable o be further applied in the final modeling for creation of Soil Loss map in the Republic of North Macedonia using RUSLE method. Average R - factor in states amounts to 533 (MJ mm ha-1 h-1 yr-1), and rises from 437 (MJ mm ha-1 h-1 yr-1) in Krivolaka district in the central part of the country, to 835 (MJ mm ha-1 h-1 yr-1) in the southwestern part of Shar Planinа and Korab mountains. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Development of Erosion Protection Zones in the Catchment of the Reservoir “Kalimanci”, North Macedonia(IJERD – International Journal of Environmental and Rural Development, 2023); ; ; Trendafilov, BozhinConstruction of reservoirs is a priority for ensuring sustainability of water resources. In the Republic of North Macedonia, there are 23 big and over 120 small water reservoirs. On the other hand, erosion and the filling of reservoirs with sediment is one of the main problems in reducing the lifespan of the reservoir. The total annual accumulated sediment in all the reservoirs in the Republic of Macedonia is 3,000,000 m3 (Erosion map of RM, 1993). The selected study area for the current research is the Kalimanci reservoir in the frames of the catchment of the Bregalnica River, North Macedonia. The main method used to estimate the sediment transport on catchment level is the Erosion Potential Method (EPM; Gavrilovic method), and the validity is assessed on the basis of accumulated sediment in the reservoirs. The EPM method only estimates the total transported sediment at one point. To estimate how the sediment is transported, re-transported, and accumulated in the river bed, a hydraulic sediment transport model (HEC RAS) was used. Then the critical sub-catchments from an erosion point of view are delineated. Most of the critical sub-catchments are situated around the Kalimanci reservoir, while the middle of the catchment experiences erosion of medium severity, and the highest parts of the Bregalnica River are the least critical. The largest part of the sediment transported by the Bregalnica River (nearly 75%) is deposited in the valleys. With the aggregation of the previous steps, the erosion zones of the Kalimanci reservoir were identified.