Olga Nikolova Nitcheva, (1) Borislav Kroumov Milev, (2) The National Institute of Meteorology and Hydrology at the Bulgarian Academy of Sciences, Sofia, Bulgaria, olganitcheva@yahoo.com The Higher School of Civil Engineering “L.Karavelov”, Sofia, borislavmilev@yahoo.com   Abstract The assessment, monitoring and forecast of the soil moisture provide the decision makers in agriculture, forests and environmental management with […]

Sv. Marinova, R. Toncheva, E. Zlatareva, Hr. Pchelarova Institute of Soil Science, Sofia, Bulgaria svetla_mar@mail.bg   Abstract In the field of Ihtiman Municipality has about 1.5 million tons of raw vermiculite. Proven reserves of raw material to a depth of 8 m were 1,4 million tons and is expected to reach 2million tons. Vermiculite is […]

Ya. Chapanov1, M. Temelkova1 1National Institute of Geophysics, Geodesy and Geography, Bulgaria  astro@bas.bg   Abstract  The solar activity cycles excite periodical and pseudo periodical variations of all Earth systems, including climate, water cycles, rainfalls, streamflows, groundwater etc. The water cycles have short term, seasonal, interannual and long term periodicities with different local revealing. The interannual […]

Milena Moteva (1), Valentin Kazandjiev, (2), Totka Mitova (3), Veska Georgieva (2), (1) Research institute for Land Reclamation and Agricultural Engineering, Sofia, Bulgaria (2) National Institute of Meteorology and Hydrology, Sofia, Bulgaria (3) Soil Institute “N. Poushkarov, Sofia, Bulgaria milena_moteva@yahoo.com   Abstract Rapeseed (Brassica napus, L.) production in Bulgaria is insufficient to meet the European […]

Dimiter Syrakov1, Valery Spiridonov1, Kostadin Ganev2, Maria Prodanova1, Andrey Bogatchev1, Nikolai Miloshev2, Kiril Slavov1 1National Institute of Meteorology and Hydrology, Bulgarian Academy of Sciences, 66 Tzarigradsko Chausee, Sofia 1784, Bulgaria 2Geophysical Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl.3, Sofia 1113, Bulgaria   Abstract  The main objective of the EC FP6 project CECILIA is to […]

Igor Niagolov*, Ivan Marinov**, Irena Ilcheva*, Anna Yordanova*, Krasimira Nikolova,*Emiliya Velizarova** *National Institute of Meteorology and Hydrology, Bulgarian Academy of Sciences, Bulgaria ** Forest Research Institute, Bulgarian Academy of Sciences, Bulgaria igorbg@mail.bg   Abstract  An analysis of the available water resources in the Struma river basin, their use at present and in some future climate […]

Nadezhda Petkova, Vesselin Alexandrov National Institute of Meteorology and Hydrology – BAS, Sofia, Bulgaria nadejda.petkova@meteo.bg   Abstract An investigation on observed variations and tendencies in annual snow cover duration (SCD) and maximum snow depth (MSD) in the mountainous regions of Bulgaria over the period 1931-2005 was carried out. Drought anomaly index and standardized anomalies of […]

Assoc. Prof. Pl.Petkov (1), Assoc. Prof. N.Gadjalska (2), Assoc. Prof. R.Kireva (3), Eng. K.Karaivanov (4) Research Institute for Land Reclamation and Agricultural Mechanization (RILRAM) –Sofia, Bulgaria pl.petkov@abv.bg   Abstract: Good irrigation practices are an integral part of overall good manufacturing practices for growing crops in various agro-ecological conditions of the country, the use of which […]

Svetoslav Anev, Nikolina Tzvetkova University of Forestry, Sofia, Bulgaria svetoslav.anev@gmail.com   Abstract The initiation of phenological phases and duration of the growth period at young beech stands in the region of West Balkan mountain were observed. Stands grow at specific temperature regime, determined by altitude, exposure and orography of the terrains. Significant differences among the […]

Nikolina Tzvetkova1, Svetoslav Anev2 and Petya Parvanova3 1, 2 University of Forestry, Sofia, Bulgaria 3 Institute of Biodiversity and Ecosystem Research, BAS, Sofia, Bulgaria nikolina_tzvetkova@mail.bg   Abstract The concentrations of ozone were established for the region of the Western Balkan Mountain. This region is the most common habitat of beech (Fagus sylvatica L.) forest in […]