Soil respiration activity in different soil preparation and admixtures variants on afforested post-agricultural land

The dynamics of soil respiration activity was measured in four soil preparation and admixture variants with pine admixed with phytomelioration and biocoenotic species. In total, there were 16 different variants. The measurements were carried out in May/June 2005 using a CO2 concentration analyser AirTECH 2005−PA. Additionally, air and soil temperature were measured. The obtained results show that soil respiration activity depends on soil preparation method. The greatest soil carbon dioxide efflux was detected on the plots prepared by agricultural plough, while the lowest − on the plots prepared by BMS plough. The most intensive respiration activity of soils occurred on the plots with 7,000 pines admixed with 1,500 species of phytomelioration and biocoenotic plants. The lowest carbon dioxide efflux was detected on the plots with 7,000 pines admixed with 3,000 phytomelioration and biocoenotic species. Additionally, soil and air temperatures turned to have a significant impact on soil respiration activity