BioOne.org will be down briefly for maintenance on 17 December 2024 between 18:00-22:00 Pacific Time US. We apologize for any inconvenience.
How to translate text using browser tools
1 March 2004 SOIL RESPIRATION RATES OF TROPICAL PEATLANDS IN MICRONESIA AND HAWAII
Rodney A. Chimner
Author Affiliations +
Abstract

There are very few published reports of soil respiration rates from tropical peatlands, despite their importance to global carbon cycling. This study quantified in situ soil respiration rates in a suite of tropical peatlands in Micronesia and Hawaii using a soil CO2 flux chamber connected to a LI-COR 6400 Portable Photosynthesis Infrared Gas Analyzer. Soil respiration rates were higher in the warmer Micronesian peatlands (2.15–2.54 umol m−2 s−1) than in the cooler Hawaiian montane peatlands (0.83–1.81 umol m−2 s−1). The lone exception was the taro-cultivated peatland in Micronesia that had low soil respiration rates likely due to low amount of litterfall, root biomass, and root production. Deep standing water decreased soil respiration rates, while lowered water levels had mixed effects on soil respiration rates. Surprisingly, measured soil respiration rates were lower than rates measured in temperate and boreal peatlands in the summer. However, soil respiration rates in tropical peatlands are not limited by large diurnal or seasonal changes and can continue respiring at the same rates, resulting in higher annual CO2 flux rates compared to other non-tropical peatlands.

Rodney A. Chimner "SOIL RESPIRATION RATES OF TROPICAL PEATLANDS IN MICRONESIA AND HAWAII," Wetlands 24(1), 51-56, (1 March 2004). https://doi.org/10.1672/0277-5212(2004)024[0051:SRROTP]2.0.CO;2
Received: 3 April 2003; Accepted: 1 November 2003; Published: 1 March 2004
JOURNAL ARTICLE
6 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

KEYWORDS
CO2
fens
peatlands
soil respiration
tropical
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top