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Ecosystem scale evapotranspiration and net CO2 exchange from a restored peatland

✍ Scribed by Richard M. Petrone; J. M. Waddington; Jonathan S. Price

Publisher
John Wiley and Sons
Year
2001
Tongue
English
Weight
130 KB
Volume
15
Category
Article
ISSN
0885-6087

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✦ Synopsis

Abstract

An understanding of the symbiotic water and gas exchange processes at the ecosystem scale is essential to the development of appropriate restoration plans of extracted peatlands. This paper presents ecosystem scale measurements of the atmospheric exchange of water and carbon dioxide (CO~2~) from a restored vacuum extracted peatland in eastern QuΓ©bec, utilizing full‐scale micrometeorological measurements of both evaporation and CO~2~. The results indicate that the adopted restoration practices reduce the loss of water from the peat, but CO~2~ emissions are ∼25% greater than an adjacent nonrestored comparison site. The blockage of drainage ditches and the existence of a mulch cover at the site keep the moisture conditions more or less constant. Consequently, the CO~2~ flux, which is predominantly soil respiration, is strongly controlled by peat temperature fluctuations. Copyright Β© 2001 John Wiley & Sons, Ltd.

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✍ Jill Bubier; Patrick Crill; Andrew Mosedale πŸ“‚ Article πŸ“… 2002 πŸ› John Wiley and Sons 🌐 English βš– 873 KB

## Abstract Net ecosystem exchange of CO~2~ was measured at a temperate peatland in southeastern New Hampshire. Classified as a mineral‐poor fen owing to deep, water‐logged peats that are influenced to a limited extent by groundwater, the ecosystem is dominated by plants such as sedges (__Carex__ s