Neno Aleksandrov

• PhD
• Professor at University of Forestry

Oak forests in Bulgaria occupy about 50% of the area of the deciduous forests and shape the landscape in the lower altitudes up to 750-800 m a.s.l. Due to their distribution, oak forests have been subjected to very strong anthropogenic pressure for centuries. The widely applied coppice management of these forests in the past led to their transforma...

Climate change, with its increasing frequency and intensity of extreme weather events, poses challenges for tree growth. We investigated the response of Norway spruce at its southern- most distribution point in the Western Rhodope Mountains, an area expected to experience significant changes in temperature and precipitation. Using a dendroecologica...

Scots pine plantations are a symbol of mass afforestation in Bulgaria at the beginning of the second half of the 20th century. They are created with a lot of enthusiasm, voluntary work and for almost any purpose. Evergreen, they led to a radical change in Bulgaria's landscape. Today, the people takes them for granted. For foresters and forest ecolo...

In Bulgaria, the number of water sources and facilities for drinking and domestic water supply from surface and underground water is about 7,480. They are surrounded by sanitary protection zones (SPZ). Each SPZ has 3 belts, which are organised according to an accepted methodology. With the help of a designed geographic information system, it was fo...

In the last two decades, a problem for determination of optimal rotation ages when considering not only wood production but carbon uptake has had big importance. The coppice stands in Bulgaria occupy approximately 47% of the forest area. The biggest part of it consists of species of the genus Quercus which are managed by two silvicultural systems:...

This work investigates adaptive approaches to the management of the oak forests in Bulgaria under climate change conditions. The key elements of adaptive management and various forestry approaches of transformation of coppice forests are presented. On this basis, the results of the transformations of the coppice oak forests, the structure of the as...

The sycamore (Acer pseudoplatanus L.) shows good adaptability to climate change and it could be used more widely in plantations in Europe and Bulgaria. The purpose of this study is to analyse and establish the condition, growth and productivity of plantations and natural stands under different habitat conditions in Bulgaria. All plantations and nat...

The purpose of this study is to analyze existing silvicultural experience related to the sycamore using literary data in order to optimize future work with the species. The discussion looks into matters related to: ecological requirements, seed propagation, vegetative propagation via rooting of stem cuttings and grafting, natural regeneration speci...

А classification according to the level of ecosystem fit for plantations of Scots pine in south-western Bulgaria is proposed in this study. For this purpose, two indices which characterize the relief and soil conditions are used. The assessment of climatic conditions is made using the De Martonne index. The plantations are classified into four grou...

Over the last 50 years, the total area of coppice oak forests in Bulgaria has not diminished despite the fact that their management is aimed to transform them into high stands. The analysis shows that a reason for this is the lack of capacity to carry out the necessary thinnings in the vast area of coppice forests. Therefore, the mature stands are...

Natural disturbances are among the most important factors that shape forest dynamics and forest landscapes. However, the natural disturbance regime of Norway spruce (Picea abies (L.) Karst.) forests in Europe is not well understood. We studied the disturbance regimes in three forest reserves in Bulgaria (Parangalitsa, Bistrishko branishte, and Begl...

The first for Bulgaria Plan for Multifunctional Forest Management (PMFM) is the plan for the forest on the territory of Teteven Municipality, which was adopted in 2004. The monitoring of the plan was held during the period 2006-2012. The process of new plan elaboration was started in 2012 in the framework of INTEGRAL Project. The 96 actual stakehol...

The process of Plan for forest development on the territory of Velingrad municipality elaboration has been started in 2012 in the framework of INTEGRAL Project. The 50 stakeholder’s issues were discussed during the 9 workshops in the period 2012-2015. On this basis the main forest management goal and forest development priorities on the territory o...

Forest vertical structure is a characteristic which is of interest for many disciplines and is often discussed in the context of forest ecosystems management. The vertical stratification of tree crowns influences the growth of the single tree and also it determinate the communities thriving beneath the canopy. Close to nature forest management dema...

The development nowadays forestry, tend to dominate the principles of sustainable, multifunctional and adaptive management. The management of beech forests in the middle of last century is not based on scientific approach and is subject to political situation which do not take into account the multifuctionality of the of these forests. As a result,...