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Influence of leaf area on atmospheric input of elements to the ecosystems of the Kampinos National Park (Central Poland)

Kram K.

Polish Journal of Ecology

2001

Vol. 49, nr 4

327-337

The study was conducted in the buffer zone of the Kampinos National Park 30 km north from Warsaw in the growing seasons (April-October) of 1997-1999. In addition to element input into common rain collectors, their aerosol-gaseous input was determined, using collectors with artificial leaves of known surface areas - 2, 6 and 12 m^2 n^-2. It was found that the input of the majority of elements markedly increased with increasing artificial leaf area (Na'+, N-NH4'+, Mg'2+, Cl'-, N-NO3'-, S-SO4^2-, P-PO4^3-, and less intensively Cd'2+ and Cu'2+). This was not the case of H'+, Zn'2+, Pb'2+, and atmospheric input of water. Proportional increase in anions and cations neutralising them accompanied increasing artificial leaf area, so that water acidity was stable. As a result of parallel increases in the input of most elements with increasing leaf area proportions between elements were maintained at fairly the same level in leaf area gradient.