Research of Ecological Conditions of Special-Purpose Forest to Assess the Environmental State of the Belgrade Agglomeration

The paper covers research in the fields of urban forestry and environmental ecology. The research results on ecological factors in forest habitats in the periurban zone of Belgrade are presented. The studied complex is classified into forests with a priority protective function and forests intended for recreation and cultural functions. The paper aims to assess the ecological potential of habitats in relation to the purpose and ecosystem services of forests. Based on the research results, it will be possible to reconstruct parts of the forest complex that are underutilizing the habitat's potential. The climate character was determined based on the climate index using the Thornthwaite method. Based on air temperatures and precipitation amounts (2002- 2016), the soil moisture deficit and surplus, potential and actual evapotranspiration, aridity and humidity indices, and the climate index were calculated. The habitat is characterized as: a habitat of submontane beech forest (Fagetum submontanum) on eutric brown soil on loamy sediments; a habitat of Hungarian and Turkey oak forest with manna ash (Quercetum frainetto-cerridis ornetosum) on eutric brown soil on loamy sediments, and a habitat of a typical Hungarian and Turkey oak forest (Quercetum frainetto-cerridis typicum) on illimerized eutric brown soil on loamy sediments. The objective of management is to develop silvicultural measures that facilitate the regeneration of introduced tree species.