Artikkelin koko teksti on saatavilla vain PDF-formaatissa.

R. S. Clymo (email)

Models of peat growth

Clymo R. S. Models of peat growth.

Tiivistelmä

Models reflect reality but also simplify it. The modeller must choose where the balance lies between simplicity plus understanding and complexity plus realism. (1) Two pictorial and descriptive models of the surface of a peat-forming bog are given, and a third shows why the true rate of peat accumulation must diminish over time. (2) A simple quantitative model of the surface layers is described and leads to the conclusion that the surface layer is in a steady state, fixing carbon, losing some by decay, and passing some on to the underlying peat proper. A similar model for the underlying peat shows that if decay is at a rate that is a constant proportion of what remains then there is an upper asymptotic limit to the depth of peat. But if the rate of decay decreases, because the remaining material is more refractory, then peat accumulation continues indefinitely though at an ever-decreasing rate. (3) A simulation model allowing greater realism but diminished understanding is outlined. (4) Models should be aids, not objects in their own right. Keywords: Carbon balance, modelling, peat growth, peatland

Avainsanat
peatland; Carbon balance; modelling; peat growth

Tekijä
  • Clymo, School of Biological Sciences, Queen Mary and Westfield College, London El 4NS, UK Sähköposti ei.tietoa@nn.oo (sähköposti)

Vastaanotettu 31.10.2017 Julkaistu 1.1.1992

Katselukerrat 535

Saatavilla http://suo.fi/article/9695 | 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