Processing of elements by mires in agricultural landscape

Small mires located in hollows with no surface outflows were subject to biogeochemical studies by input-output balance method based on measurements of groundwater flows. Estimates were made of water balance as well as balance of dissolved forms of: N (including N – NO3, N – NH4, Norg), K, Na, Ca, Mg, S – SO4 and Cl. The following undrained mires were examined: two with minerotrophic fen and one with ombrotrophic-transition bog. Also a drained minerotrophic mire was studied. It was observed that nitrogen outflow from undrained mires was considerably smaller. The mire with ombrotrophic-transition bog could retain a substantial part of a scanty inflow of the examined elements, while mires with minerotrophic fen – upmost a tiny part of a rich inflow mainly from catchment basin. Drained minerotrophic mire was no longer apt to retain a majority of elements, nitrogen in particular.

Strony 73-117 : ilustracje ; 24 cm

Streszczenie w języku polskim

Pages 73-117 : illustrations ; 24 cm

Abstract in Polish

Bibliografia na stronach 113-117

Bibliographical references (pages 113-117)