Soil development and succession of soil biota in afforested and non-reclaimed sites in post mining landscape - preliminary results

0206407 - UPB-H 20023052 RIV SIGLE IT eng C - Konferenční příspěvek (zahraniční konf.)
Frouz, Jan - Pižl, Václav - Tajovský, Karel - Balík, Vladimír - Háněl, Ladislav - Starý, Josef - Lukešová, Alena - Nováková, Alena - Šourková, Monika - Přikryl, I.
Soil development and succession of soil biota in afforested and non-reclaimed sites in post mining landscape - preliminary results.
Symposium on Environmental Issues and Waste Management of Mineral and Energy Production 2002, Proceedings. Cagliari: DIGITA Facolta Ingegneria, 2002, s. 621-626.
[Symposium on Environmental Issues and Waste Management of Mineral and Energy Production 2002. Cagliari (IT), 07.10.2002-10.10.2002]
Grant CEP: GA ČR GA526/01/1055
Výzkumný záměr: CEZ:AV0Z6066911
Klíčová slova: succession * soil biota * post mining landscape
Kód oboru RIV: EH - Ekologie - společenstva

Density and community structure of a wide spectrum of soil organisms (microscopic fungi, algae , testate amoebae, nematodes, earthworms, oribatid mites, millipedes, and dipteran larvae) were studied in four un-rehabilitated post mining plots with spontaneous vegetation located on alkaline clay spoils in the Sokolov coal mining district (Czech Republic) in 2001. Scarce herb vegetation only occurred on plots 7 and 11 years old. Shrubs (Salix caprea) occurred in 15 year old plot. About 10-15 m tall trees (namely Populus tremuloides and Betula spp.) covered 42 year old plot. The results were compared with those obtained on sites of similar age reclaimed using afforestation with black alder. Longitudinal depressions and elevations formed by heaping machinery created apparent habitat heterogeneity in un-rehabilitated sites. This resulted in accumulation of litter and in more diverse and abundant communities of soil biota in depressions, particularly in younger plots. The succession of investigated groups of soil macrofauna was slower in spontaneously developing than in reclaimed sites. Similarly, the rate of cellulose decomposition was lower in spontaneous sites. In the contrary, the density of soil microflora and micro- and mesofauna was higher in spontaneous than in reclaimed sites.
Trvalý link: http://hdl.handle.net/11104/0102000