EFFECTS OF PHYSICAL, CHEMICAL AND BOTANICAL CHARACTERISTICS OF PEAT ON CARBON GAS FLUXES

Publisher Website
Google Scholar
Abstract
Peatland ecosystems may contribute about 65% of all natural methane emission to the atmosphere. During May—June 1988, CH4 and CO2 fluxes were measured with the static chamber method at the surface of a basin swamp and at three depths. The daily average fluxes of CH4 and CO2 at the surface of the swamp ranged from 1.146 to 2.178 mmol m−2 d−1 and from 1.966 to 7.242 mmol m+2 d−1 respectively. These amounts of CH4 and CO2 corresponded to 0.02–0.03% of what was released from the 45 to 60-cm depth when exposed to atmospheric pressure. Statistically significant correlations between physical and botanical peat properties and trapped CH4 and CO2 and water flow suggest that outgassing of trapped CH4 and CO2 are closely associated with the peat matrix, peat properties, hydraulic potential, temperature, and concentration gradients. © Williams & Wilkins 1994. All Rights Reserved.

This publication has 0 references indexed in Scilit: