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- W991644980 abstract "Infl uence of elementary land mosaics on chemical parameters of soils Land mosaics have direct and indirect infl uence on chemical reaction and redox condition of soils. The present paper deals with the relationship between some environmental factors (such as soil and vegetation patt erns, micro-relief, water regime, temperature and incident solar radiation) and the pH, Eh of soils and solute iron in a headwater wetland in Transdanubia, Hungary. Measurements have been made in four diff erent patches and along their boundaries: sedge (Carex vulpina, Carex riparia, three patches and two species), horsetail (Equisetum arvense), common nett le (Urtica dioica). The spatial patt ern of the studied parameters are infl uenced by the water regime, micro-topography, climatic conditions and by direct and indirect eff ects of vegetation. The indirect eff ect can be the shading, which has infl uence on soil temperature and on the incident solar radiation (PAR). Root respiration and excretion of organic acids appear as direct eff ects. Individual pH and Eh characteristics have been measured in the studied patches. Soil Eh, pH and solute iron have shown seasonal dynamics. Higher redox potentials (increasingly oxidative conditions) and higher pH values were measured between late autumn and early spring. The increasing physiological activity of plants causes lower pH and Eh and it leads to greater spatial diff erences. Although temperature is an essential determining factor for Eh and pH, our results suggest that it rather has indirect eff ects through plants on wetlands." @default.
- W991644980 created "2016-06-24" @default.
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- W991644980 date "2008-01-01" @default.
- W991644980 modified "2023-09-27" @default.
- W991644980 title "Elemi táji mintázatok hatása talajkémiai paraméterekre" @default.
- W991644980 hasPublicationYear "2008" @default.
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