Artikkelin koko teksti on saatavilla vain PDF-formaatissa.

Luca Bragazza (email)

Kasvukautiset vaihtelut pohjois-italialaisen suon vesikemiassa

Bragazza L. Kasvukautiset vaihtelut pohjois-italialaisen suon vesikemiassa.

English title: Seasonal changes in water chemistry in a bog on the Southern Alps

Tiivistelmä

Concentrations of sodium, potassium, calcium and magnesium were periodically measured in precipitation and in pool water in a bog on the Southern Alps during the 1991 vegetative season. A simple model was established for calculating theoretical concentrations of those cations in bog water, taking into account the effect of potential evapotranspiration. The actual concentrations of cations in bog water were then compared with the theoretical ones and this allowed to define different seasonal patterns of cation concentrations. Sodium accumulated in bog water with respect to precipitation, to an extent far exceeding the enrichment due to evaporation. A possible explanation of this resides in a surface enrichment owing to capillary flow. Potassium, and to a lesser extent magnesium, accumulated in spring and autumn but were actively removed by plants in summer. Calcium was removed also outside the growing season, probably by cation exchange on peat. Keywords: bog water, cations, evapotranspiration, precipitation, seasonal variation.

Avainsanat
bog water; cations; evapotranspiration; precipitation; seasonal variation

Tekijä
  • Bragazza, Faculty of Agricultural Sciences, University of Padua, Via Gradenigo 6, 1-35131 Padua, Italy Sähköposti ei.tietoa@nn.oo (sähköposti)

Vastaanotettu 31.10.2017 Julkaistu 1.1.1993

Katselukerrat 341

Saatavilla http://suo.fi/article/9732 | Lataa PDF

Creative Commons License CC BY-NC-ND 4.0

Rekisteröidy
Click this link to register to Suo - Mires and peat.
Kirjaudu sisään
Jos olet rekisteröitynyt käyttäjä, kirjaudu sisään tallentaaksesi valitsemasi artikkelit myöhempää käyttöä varten.
Ilmoitukset päivityksistä
Kirjautumalla saat tiedotteet uudesta julkaisusta
Valitsemasi artikkelit
Hakutulokset