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Zaza Gulashvili

14 linked publication records · Institute of Geography of the Slovak Academy of Sciences

Author: Zaza Gulashviliclear all
Showing 1-14 of 14 records
1
25th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2025, Water Resources, Forest, Marine, and Ocean Ecosystems, Vol25, Issue 3.1
Publication

NDVI-BASED SPATIOTEMPORAL ANALYSIS OF THE GREEN SPACE IN TBILISI, GEORGIA

(STEF92 Technology, 2025-08-15, Mariam Tsitsagi, Zaza Gulashvili, Nino Kharebava)

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Green space is an integral part of human life. Many aspects of the population's activity and well-being are associated with this process. Green space is equally important for both rural and urban settlements. Tbilisi, Georgia, is a city where the loss of green space has recently intensified due to excessive urban sprawl. However, this growth is not well planned in most cases. Accordingly, analysis of green space dynamics is crucial for strategic planning in Tbilisi. However, there is a lack of similar data for Tbi...

Forest Ecosystems2025
24th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2024, Water Resources. Forest, Marine and Ocean Ecosystems, Vol 24, Issue 3.1
Publication

DROUGHT INDICES AND VIS-BASED CANOPY STATUS OF VINEYARDS

(STEF92 Technology, 2024-11-01, Mariam Tsitsagi, Ana Palavandishvili, Zaza Gulashvili)

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The study aims to evaluate how droughts impact irrigated and non-irrigated vineyards by analysing the relationship between short-term drought and vegetation indices to identify areas irrigated from unofficial sources. The re-search area includes vineyards in Telavi municipality (eastern Georgia). RStudio was used to calculate SPI and SPEI (1- month and 3-month timescales) and EDI (daily) to measure the severity of the meteorological drought. The 27-year (1993-2020) data from a weather station in the study area inc...

Hydrology and Water Resources2024
24th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2024, Ecology, Economics, Education and Legislation, Vol 24, Issue 5.1
Publication

EVOLUTION OF THE COMMON AGRICULTURAL POLICY OF THE EU

(STEF92 Technology, 2024-11-15, Liudmyla Golovko, Оlena Gulac, Iryna Siuiva, Elina Pozniak, Olena Shompol)

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The agricultural sector is an important strategic branch of any economy. Food security and food independence of the state are the key to ensuring the national security of the state. This fact became especially evident during Russia's aggression against Ukraine, which, among other things, affected the global food market. The Common Agricultural Policy (CAP) is one of the oldest policies of the European Community, as it was launched in 1957 by the Treaty of Rome, signed by six countries (Germany, France, Italy, the ...

Cartography and GIS2024
24th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2024, Ecology, Economics, Education and Legislation, Vol 24, Issue 5.1
Publication

LEGAL BASIS FOR ENSURING FIRE SAFETY IN FORESTS IN THE TERRITORY CONTAMINATED BY RADIOACTIVE EMISSIONS FROM THE CHERNOBYL NUCLEAR POWER PLANT ACCIDENT

(STEF92 Technology, 2024-11-15, Оlena Gulac, Liudmyla Golovko, Spartak Pozniakov, Anastasiia Kozin, Iarmolenko Iuliia)

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In the context of martial law in Ukraine and significant climate change, the risks of forest fires are significantly increased. The forest areas of the Chornobyl Exclusion Zone are most exposed to such threats, which is additionally mediated by a number of factors: radioactive contamination and threats of migration of radioactive elements in case of forest fires, significant clutter of these areas, structure of the stand, lack of forest roads and communications, shortcomings of legal regulation and insufficient le...

Cartography and GIS2024
SGEM International Multidisciplinary Scientific GeoConference- EXPO Proceedings; 23rd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2023, Ecology, Economics, Education and Legislation, Vol. 23, Issue 5.1
Publication

INTERNATIONAL LEGAL REGULATION OF ENVIRONMENTAL PROTECTION DURING ARMED CONFLICT AND THE POSSIBILITY OF ITS APPLICATION IN UKRAINE

(STEF92 Technology, 2023-10-01, Liudmyla Golovko, Оlena Gulac, Роман Олексенко)

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The purpose of the article is to analyze international legal documents regarding the possibility of their application for the purpose of environmental protection during armed conflict. Special attention was paid to the provisions of international humanitarian law. The gaps that exist in this area were identified. The topic is especially relevant nowadays, when we are witnessing the significant damage caused to the environment during the armed aggression of the Russian Federation against Ukraine. Already now, the d...

Cartography and GIS2023
SGEM International Multidisciplinary Scientific GeoConference- EXPO Proceedings; 22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Water Resources. Forest, Marine and Ocean Ecosystems
Publication

POSITIVE AND NEGATIVE ASPECTS OF WATER RESERVOIRS

(STEF92 Technology, 2022-11-15, Lia Matchavariani, Giorgi Metreveli, Zaza Gulashvili)

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The main purpose of the research was to create a comprehensive methodology to assess, predict and prevent the consequences of the negative impact of water-reservoirs on the environment, provide the safety of population and infrastructure; to find a way allowing jointly realize the interests of hydropower and coast protection. To achieve this goal, the following methods were used: full-scale experiment, field-expedition surveys on operating reservoirs, informational analysis, mathematical methods of least squares, ...

Hydrology and Water Resources2022
SGEM International Multidisciplinary Scientific GeoConference- EXPO Proceedings; 22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Energy and Clean Technologies
Publication

RELATIONSHIP BETWEEN NORMALISED DIFFERENCE VEGETATION INDEX, PRECIPITATION AND DROUGHT INDICES (CASE OF KAKHETI, GEORGIA)

(STEF92 Technology, 2022-11-15, Mariam Tsitsagi, Zaza Gulashvili, Nana Bolashvili, Marika Tatishvili, Nikoloz Suknidze)

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The link between precipitation, drought indices, and NDVI is discussed in this paper. The data were processed on the example of the extreme eastern region of GeorgiaKakheti for the period 2016-2020. The study area has landscapes of natural (mixed and deciduous forests) and agriculture (vineyards, orchards, cereals, and vegetables). The NDVI was generated using Sentinel 2 images with a 10 m pixel resolution, and the average monthly NDVI was derived using Arc map 10.8. Drought indices (SPI and SPEI) were calculated ...

Air Pollution and Climate Change2022
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 21st SGEM International Multidisciplinary Scientific GeoConference Proceedings 2021, Water Resources. Forest, Marine and Ocean Ecosystems
Publication

ROLE OF WATER RESERVOIRS IN THE SEASHORE DYNAMICS

(STEF92 Technology, 2021-12-20, Lia Matchavariani, Giorgi Metreveli, Zaza Gulashvili)

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Construction of water-reservoirs across the rivers flowing into the sea often much complicates the coast protection problems. The reason is deficit of filling sediment on the coast-protecting beaches, which settle under the water. Consequently, two problems arise: efficiency of water-reservoir decreases and coastlines start to degrade what eventually ends with coast washing away and disaster. Main goal of is to develop the method of efficient solution of water-reservoir and coastal problems allowing maintaining th...

Hydrology and Water Resources2021
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020, Energy and Clean Technologies
Publication

ESTIMATION OF CLIMATIC BACKGROUND AND ITS REGIONAL PARAMETERS

(STEF92 Technology, 2020-09-20, Lia Matchavariani, Giorgi Metreveli, Zaza Gulashvili)

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The current global climate variability is leading to significant changes in meteorological and oceanographic elements. A climatic background is formed, under the direct influence of which the reservoir affects the climate. The aim of the study is to create a method that can assess the combined impact of the main climate elements for a specific time interval and region. The following parameters of hydro- and meteorological elements are selected as the characteristics of such background: arithmetic mean and correspo...

Air Pollution and Climate Change2020
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020, Water Resources. Forest, Marine and Ocean Ecosystems
Publication

IRRIGATION AND WATER SUPPLY RECOMMENDATION SCHEME IN RIONI RIVER BASIN

(STEF92 Technology, 2020-09-20, Zaza Gulashvili)

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Nearly 20 years have passed since the European Community implemented the European Directives on water management. Its main directions are the achievement of good water quality and the implementation of water management principles. In Georgia, this process has been underway already for 3 years. The country's territory is divided into 6 basin areas. One of them is the Rioni River basin, whose area is 13,000 km2 with up to 700 rivers. In addition, there are reservoirs and a system of irrigation canals. In the downstr...

Hydrology and Water Resources2020
5th International Scientific Conference - SGEM2005
Publication

PURIFICATION OF WATER FROM METAL IONS BY ACTIVATED CARBONS OBTAINED FROM COALS AND AGRICULTURAL BYPRODUCTS

(SGEM Scientific GeoConference, 2005, A. Eksilioglu, F. Karadag, A. Gul, M. Sipahi, T. Budinova, N. Petrov, D Savova)

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The problems for the protection of the environment from various pollutants are considered worldwide as fundamental for mankind. A large number of people are nowadays exposed to the different pollutions in waste and potable water. The pollutions have a harmful effect on the biological system. Some regions in Bulgaria and Turkey have serious problems with water contaminated with metal ions. The heavy metals (Hg, As, Cd, Mn, etc.) have a harmful effect on human physiology and other biological system when they are fou...

Ecology and Environmental Protection2005
5th International Scientific Conference - SGEM2005
Publication

REMOVAL OF CHROMIUM FROM AQUEOUS SOLUTION USING ACTIVATED CARBON

(SGEM Scientific GeoConference, 2005, A. Gul, A. Dincer, R. Yavuz, N. Karatepe)

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The aim of this investigation is to determine the adsorption behavior of chromium (VI) on Tuncbilek activated carbon sample. The effects of the Cr concentration (25-100 ppm), temperature (297-325 K) and pH (2.5-9.8) on adsorption were investigated systematically. It was found that the effectiveness sequence of the parameters was initial Cr(VI) concentration, temperature and pH. Increasing the pH from 2.5 to 9.8 causes a decrease in adsorption. But it is obvious that adsorption was increased by increasing the initi...

Ecology and Environmental Protection2005
Showing 1-14 of 14 records
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