Biological activity of anthropogenic soils after spoil-bank forest reclamation
2007
Remes, J.,Ceska Zemedelska Univ., Prague (Czech Republic). Fakulta Lesnicka a Environmentalni | Sisa, R.,Ceska Zemedelska Univ., Prague (Czech Republic). Fakulta Lesnicka a Environmentalni
The paper presents the results of relatively long-term research focused on spoil bank revitalization processes in the North Bohemian Brown Coal Basin after the first three years of observations. The biological activity of soil (namely catalase and phosphatase activity), indicators of basal and potential soil respiration, ammonification and growth, development and nutrition status of forest plantations were selected as indicators of this revitalization process. These variables were determined in five localities of different age of reclamation where different technological approaches and tree species compositions were used. The results confirm the distinct time dependence of revitalization processes. From the aspect of biological activity older reclamations are close to natural forest soil. The enrichment of top soil layer with organic matter before the plantation (by ploughing in cellulose fibres and peat addition) increased some indices of soil biological activity. The positive amelioration effect of Alnus glutinosa was also confirmed.
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