CHEMICAL AND ENZYMATIC INDEXES OF URBOGENIC AND AGROGENIC SOILS FROM THE REGION OF MUNICIPALITY OF VARNA
Published: 28 May 2015
Abstract: There are analyzed soils from urbocenosis and agrocenosis from the region of municipality of Varna. There are determined macro- and microelements and their complex impact over the cellulase and the catalase activity of the soil microorganisms. The soils from the investigated ecosystems are poorly supplied with total nitrogen. The urbogenic soil is well supplied with absorbable forms of phosphorus and potassium, in contrast to the agrogenic soil, which is poorly supplied with phosphorus and averagely supplied with potassium. As per content of organic substance the urban soil is classified as a slightly humus, and that from the agrocenosis as averagely humus one. There is established that the cellulase activity is lower at the urbogenic soil in comparison with the agrogenic one. It is suppressed by the activity of Pb, Cd, Cu and Zn, but it is not influenced by the summary activity of Ni, Mn and Fe. For the enzyme catalase is marked a contrary tendency – its activity is limited by a higher content of Ni, Mn and Fe and it is not suppressed by Pb, Cd, Cu and Zn. The studied chemical and enzymatic indexes may serve as indicators for passing processes in anthropological soils with low content of heavy metals.
Keywords: urbogenic soil, agrogenic soil, macronutrients, heavy metals, cellulase, catalase
Cite this article: Bojka Z. Malcheva, Pavlina N. Atanasova, Plamena Y. Panayotova, Dragomir P. Dimitrov. CHEMICAL AND ENZYMATIC INDEXES OF URBOGENIC AND AGROGENIC SOILS FROM THE REGION OF MUNICIPALITY OF VARNA. Journal of International Scientific Publications: Ecology & Safety 9, 330-339 (2015). https://www.scientific-publications.net/en/article/1000726/
Download full text
Back to the contents of the volume
© 2021 The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/3.0/
, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. This permission does not cover any third party copyrighted material which may appear in the work requested.