Peculiarities Of Accumulation And Profile Distribution Of Different Forms Of Carbon In Soils Of Park-Recreational Zone Of Rostov Agglomeration

The research of content and profile distribution of organic (Corg.) and inorganic (Cinorg.) carbon in soils of forest parks of Rostov-on-Don, Aksay and Bataysk (together Greater Rostov) is presented in the article. The obtained data are based on a two-year monitoring of different-aged forest plantations, which differ in spatial position, dominants of the tree stand, floristic composition of herbaceous vegetation. The content of organic carbon in soils under woody vegetation is significantly higher (4.24 ± 0.85%) in comparison with chernozems of long-fallow areas (3.25 ± 0.94%). The exception is the monitoring sites of young forest plots, estimated to be 25‒30 years old, which show significantly lower values at 3.42 ± 0.76%. For Corg. reserves, similar trends can be stated: forest parks and mostly old-aged plots have the largest reserves in the meter thickness of urban soils. The study of inorganic carbon content peculiarities suggests leaching of carbonates in chernozems under woody vegetation. There is a significant decrease in Cinorg. reserves (4.35 ± 2.02 kg/m2) for metre thickness relative to long-fallow chernozems (12.24 ± 3.50 kg/m2).

Rostov agglomeration, migration and segregation, chernozems, organic carbon, inorganic carbon, organic matter stocks, forest park soils