tailieunhanh - Báo cáo lâm nghiệp: " Floodplain forests of Litovelské Pomoraví and their management"

Tuyển tập những bài báo cáo nghiên cứu khoa học hay nhất được đăng trên tạp chí JOURNAL OF FOREST SCIENCE đề tài: Floodplain forests of Litovelské Pomoraví and their management. | JOURNAL OF FOREST SCIENCE 54 2008 8 355-369 Floodplain forests of Litovelské Pomoraví and their management I. Machar Department of Biology Faculty of Education Palacký University in Olomouc Czech Republic ABSTRACT The paper characterizes the natural conditions and current state of floodplain forests in the area of Litovelské Pomoraví and proposes the protective management of the area in accordance with the European Natura 2000 system. The paper describes the geographical location and the natural conditions of the area of interest climate geology geomorphology hydrology and flood regime soils and vegetation . Six groups of geobiocene types were identified classified and described in detail. Assessment of the ecological stability of the forest stand was carried out using biogeographical differentiation of the landscape and the outline of the forest ecosystem management is drawn based on the differentiation of the protected landscape area into zones with various levels of protection. Keywords alluvial landscape anthropogenically conditioned state of geobiocoenoses dynamic fluvial seral series of floodplain geobiocoenoses protected landscape area forest management Natura 2000 The floodplain forest is a natural formation that is very rare in Europe appearing in the area of its potential natural existence of alluvial landscape only in a historically limited extent. In the usually extensively deforested and agriculturally exploited landscape of the current alluvia the preserved remains of floodplain forests present extraordinarily valuable refuges of biotic diversity and entail irreplaceable importance for the ecological stability of the entire alluvium and wider river basin. Unlike the other Central European landscapes where even under changes of biocoenosis the permanent ecological conditions of biotopes remain unchanged the floodplain forests in valley alluvia are typical with their long-term continuous development of ecotopes and mutually conditioning complexly linked

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