Changing of ecosystem functions in the Hortobagy area

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Article Title:	Changing of ecosystem functions in the Hortobagy area
Authors:	Erzsebet Csengeri
Affiliation:	Szent István Univetsity
Abstract:	The study presents the interactions between people, biodiversity and ecosystem in the last 50 years. Changing anthropogenic conditions drive, both directly and indirectly, changes in biodiversity, ecosystems and ecosystem services. To enhance the conservation and sustainable use of ecosystem and their contributions to meeting human needs. Because the basis of all ecosystems includes a dynamic complex of plants, animals, microorganisms and biological diversity. Stability of ecosystems, and the changes of ecosystem functions to affect the land uses by human activity. That is changing supporting, provisioning, regulating and cultural ecosystem function. Many factors depend on changes in biodiversity affect the human condition and that biodiversity is influenced by many natural forces that are not associated with humans. Present paper discuss these changes of the sensitive area of the Hortobágy plain (NE Hungary),the largest continuous natural grassland (puszta) in Europe. Changes of ecosystem functions were studied from the 1960s, broken down by ten-year periods, giving median values. The study targeted the different agricultural land uses, changes of the ratios of agriculturally used crop lands and livestock, and also changes of the ratio numbers of protected animals, and plants.
Keywords:	natural resources, land-use, Hortobágy
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