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Báo cáo lâm nghiệp: "Earthworms (Lumbricidae) of an air-polluted area affected by ameliorative liming"

Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí lâm nghiệp đề tài: Earthworms (Lumbricidae) of an air-polluted area affected by ameliorative liming. | JOURNAL OF FOREST SCIENCE 57 2011 5 210-218 Earthworms Lumbricidae of an air-polluted area affected by ameliorative liming E. Kula L. Mensik Faculty of Forestry and Wood Technology Mendel University in Brno Brno Czech Republic ABSTRACT The study was aimed at the area of the Krusné hory Mts. with stands of substitute species soils disturbed by long-term acidification and affected repeatedly by aerial ameliorative liming. Ten species of earthworms were recorded. The highest abundance was shown by earthworms of Dendrobaena attemsi Dendrobaena octaedra and Dendrobaena vejdovskyi which are considered to be acidotolerant being however monitored in the high and balanced abundance at pH 2.8-6.2. Ubiquitous species developed in soils of markedly lower pH viz. Lumbricus rubel-lus 2.8-5.6 Aporrectodea caliginosa 3.1-5.5 and Octolasion lacteum 3.2-5.2 . Dendrobaena attemsi responded positively to low saturation of the base-exchange complex low C N ratio and high content of phosphorus and negatively to the high level of calcium. D. octaedra responded positively to the higher level of calcium and D. vejdovskyi to the higher content of potassium. Keywords forest ecosystem Krusné hory Mts. liming Lumbricidae soil chemistry Ameliorative liming of stands of substitute species contributes to acceleration of the revitalization process of soils disturbed by long-term acidification. In the period 1978-1991 and 2000-2006 the area of 62 and 30 thousand ha respectively was limed Kubelka et al. 1992 Srámek et al. 2006 in the Krusné hory Mts. a number of stands being treated repeatedly. At the same time broadleaved stands Betula pendula Roth Sorbus aucuparia L. Alnus glutinosa L. Gaertn. Populus tremula L. Ulbrichová Podrázský 2002 Mốllerová 2004 contribute to improvement of soil conditions in contrast to extensive monocultures of blue spruce. In consequence of the development of soil chemistry and vegetation structure a new environment is continually created also for the soil fauna. In .