Determination of soil respiration value changes in pure and mixed aforesttation sites of black alder (Alnus glutinosa subsp barbata (C.A. Mey) Yalt.) and oriental beech (Fagus orinetalis Lipsky)

In the present study, respiratory exchange of the soil in beech, alder and beech + alder mixed stands have been investigated. 1/0 age alder and 2/0 beech seedlings were planted in the months of autumn in 2014. The soil respiration, soil moisture and soil temperature measurements were made as seasonal in the years 2014-2015. According to first year soil respiration emerging with measurements of microorganism activity, beech + alder pitches seem to get higher results than others. On the other hand, it is revealed that there are no significant differences on the statistics level in the test fields of pure grown beech, pure grown alder and grown mixed alder and beech.