Vania Kachova

Bulgarian Academy of Sciences | BAS · Forest Research Institute, Department of genetics, physiology and plantations

From the analysis of properties, concerning growth of forest trees for the two main types of soils distributed in the Gola Bardo Mountain: rendzina and shallow cinnamon soils, it is established that both types of soils are moderately rich and moderately suitable for development of forest vegetation. Humus-carbonate soils (rendzina) are well stocked...

In the last decades, invasive plant species have rapidly settled on the islands in the Danube River. This process is closely related to anthropogenic activities, such as felling and cultivation of soil for afforestation of Euro-American poplar trees throughout the Danube River basin. In this regard, it is important to: (i) determine the speed and s...

Plants gathered from the Balkan area has an important place in the alexandru Beldie herbarium of the "marin drăcea" national institute for research and development in Forestry (incds) in Bucharest. this fact is proven by their scientific and historical value, both through the high variety of species contained, as well as through the large area from...

Agrošumarstvo je višenamjenski, okolišno povoljan i moderan sustav korištenja zemljišta kojim se mogu postići ekonomske, okolišne i socijalne dobrobiti za društvo. Ovom studijom se to potvrđuje na primjeru plantaža topola uz rijeku Dunav u regiji Vidin (Bugarska) u koje je uveden i uzgoj povrtlarskih kultura. Primjenom agrošumarskih metoda proizvod...

The present article intends to identify the oldest stands from the Southern Carpathians, followed by an analysis of their main characteristics as well as a consolidation of the knowledge regarding old stands from Romania. The first part of the article covers a general description of the Southern Carpathians, including references about their framing...

The present study focuses on the old oak forests within the territory of Krumovgrad State Forestry Unit (SFU), located in the central part of the Eastern Rhodopes Mountains. Field measurements were performed in both abandoned and ongoing pens, covered by Quercus petraea and Quercus frainetto dominated forests with ages ranging between 120-130 years...

The effect of fertilization with organic fertilizers (Siapton and Biohumus) on the growth of Acer platanoides L. saplings was investigated. Four variants were used: Variant V1 - "Siapton" - 1 ml per sapling; variant V2 - "Siapton" 50 ml per sapling; Variant V3 - "Siapton" 50 ml per sapling + 0.5 mg "Kristalon" dissolved in 500 ml of water; Variant...

Agroforestry is a multifunctional, environmentally-friendly and modern system of land use by which we can reach economic, environmental and social benefits for the society. Bulgaria has achieved good results in the establishment of agroforestry practices, such as: protective forest belts, forest farming (agricultural use of forest areas), silvopast...

A study was carried out on the sustainability of forest plantations established on soils contaminated with heavy metals in the vicinity of the former "Kremikovtsi" metalurgic plant. Soils and forest vegetation near the village of Buhovo (black pine Pinus nigra Arn.) and Lokorsko I (red oak Quercus rubra L.) and Lokorsko II (winter oak Quercus sessi...

With a population ~ 1 300 000 million and an area of 1344 km , Sofia, Bulgaria is one of the most densely populated cities in Europe with registered contamination of the air, water and soils of the city including heavy metals. The purpose of the study is to analyze the different pools under which heavy metals in urban soils exist. The chosen sites...

By its nature agroforestry is a form of multifunctional, environmentally friendly and sustainable land management and could provide good income, employment, economic and social stability in many less favoured rural and mountainous areas in Bulgaria. Achievements, policies, legislation, financial instruments and prospects for the development of agro...

Agroforestry is a traditional but modern method of land use, which is particularly suitable in today's economic crises and climate changes. Successes, in Bulgaria, have been achieved in the construction of agro-forestry systems such as: Agricultural use in plantations; Protective forest belts; Forest-grassland complexes; Specialized plantations of...

Agroforestry is a traditional but modern method of land use, which is particularly suitable in today's economic crises and climate changes. Successes, in Bulgaria, have been achieved in the construction of agro-forestry systems such as: Agricultural use in plantations; Protective forest belts; Forest-grassland complexes; Specialized plantations of...

The present study is focused on the question of heavy metals contamination of soils in urban regions and the role of forest plants in distribution of these toxic elements emitted from linear local source of contamination (automobile traffic) toward soil system. The objects of investigation are ecosystems with grass and tree cover in the region of S...

Forest parks in many urbanized areas are affected by the anthropogenic pollution as demonstrated by the poor health status of many trees. The concentrations of harmful agents like Potentially Toxic Elements (PTEs) can be very high in urban soils and their availability is important issue for biological components in these environments. This study fo...

Heavy metal contamination of large areas due to mining and metallurgical operations poses a serious long-term environmental problem for some industrial regions of Bulgaria. The investigated Kremikovtsi region located near the capital city of Sofia, Bulgaria, is one of the most highly polluted ones by heavy metals, regarding both the soil and the sp...

For forest soils, which are naturally acidic, there is only a limited number of reports, concerning their cation exchange capacity (CEC) controlling mechanisms and on the possible impacts of acidic deposition, climate change and increasing harvesting pressure for biofuels. Therefore, the aim of this investigation was to characterise the cation exch...

We studied the contamination of Cu, Zn, Pb, and Cd in soils under oak ecosystems of urban (U), suburban (SU), and rural (R) regions in Sofia, Bulgaria. The urban sampling sites are located in the large forest parks of Sofia under oak ecosystems, while the others are located between the centre of the town and the surrounding mountains and are also f...

Six forest locations were chosen from urban (U) and semi-urban (SU) zones of Sofia, Bulgaria. Soil profiles characterised for their generic physico-chemical properties: particle size distribution, pH, C-content (%) and N-content (%). From the ratio silt/clay and C/N, significant differences were observed for the Ah horizon in the urban and semi-urb...