The vegetation of a well preserved mire in the southern Alps (South Tyrol) was studied and the results were correlated with data concerning hydrology, hydrochemistry and peat chemistry. The different vegetation types showed different nutrient levels both in the water and in the peat. In the hollows, nutrient concentrations were low in the water and higher in the peat. A reverse trend was observed in hummocks. Different patterns of accumulation and removal of mineral elements were observed along the peat profile: concentrations of N and P increase with depth; concentrations of Na, K, Mg and Mn decrease with depth; Fe and Al accumulate in the zone of water-table fluctuation. Two different areas could be distinguished within the mire, based on surface morphology, hydrochemistry and peat chemistry, viz. a peripheral area moderately rich in nutrients and a central area poor in nutrients. The mire cannot be typified as a true bog although the vegetation in its central area has several traits...
Ein Beitrag zur Moortypologie am sudlichen Rand des Sphagnum-Moorareals in Europa.
BRAGAZZA, Luca;GERDOL, Renato
1996
Abstract
The vegetation of a well preserved mire in the southern Alps (South Tyrol) was studied and the results were correlated with data concerning hydrology, hydrochemistry and peat chemistry. The different vegetation types showed different nutrient levels both in the water and in the peat. In the hollows, nutrient concentrations were low in the water and higher in the peat. A reverse trend was observed in hummocks. Different patterns of accumulation and removal of mineral elements were observed along the peat profile: concentrations of N and P increase with depth; concentrations of Na, K, Mg and Mn decrease with depth; Fe and Al accumulate in the zone of water-table fluctuation. Two different areas could be distinguished within the mire, based on surface morphology, hydrochemistry and peat chemistry, viz. a peripheral area moderately rich in nutrients and a central area poor in nutrients. The mire cannot be typified as a true bog although the vegetation in its central area has several traits...I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
