A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
$ CO_{2} $ emissions from tropical drained peat in Sumatra, Indonesia
Abstract With the increasing use of tropical peatland for agricultural development, documentation of the rate of carbon dioxide ($ CO_{2} $) emissions is becoming important for national greenhouse gas inventories. The objective of this study was to evaluate soil-surface $ CO_{2} $ fluxes from drained peat under different land-use systems in Riau and Jambi Provinces, Sumatra, Indonesia. Increase of $ CO_{2} $ concentration was tracked in measurement chambers using an Infrared Gas Analyzer (IRGA, LI-COR 820 model). The results showed that $ CO_{2} $ flux under oil palm (Elaeis guineensis) plantations ranged from 34 ± 16 and 45 ± 25 Mg $ CO_{2} $ $ ha^{–1} $ $ year^{–1} $ in two locations in Jambi province to 66 ± 25 Mg $ CO_{2} $ $ ha^{–1} $ $ year^{–1} $ for a site in Riau. For adjacent plots within 3.2 km in the Kampar Peninsula, Riau, $ CO_{2} $ fluxes from an oil palm plantation, an Acacia plantation, a secondary forest and a rubber plantation were 66 ± 25, 59 ± 19, 61 ± 25, 52 ± 17 Mg $ ha^{–1} $ $ year^{–1} $, respectively, while on bare land sites it was between 56 ± 30 and 67 ± 24 Mg $ CO_{2} $ $ ha^{–1} $ $ year^{–1} $, indicating no significant differences among the different land-use systems in the same landscape. Unexplained site variation seems to dominate over land use in influencing $ CO_{2} $ flux. $ CO_{2} $ fluxes varied with time of day (p < 0.001) with the noon flux as the highest, suggesting an overestimate of the mean flux values with the absence of night-time measurements. In general, $ CO_{2} $ flux increased with the depth of water table, suggesting the importance of keeping the peat as wet as possible.
$ CO_{2} $ emissions from tropical drained peat in Sumatra, Indonesia
Abstract With the increasing use of tropical peatland for agricultural development, documentation of the rate of carbon dioxide ($ CO_{2} $) emissions is becoming important for national greenhouse gas inventories. The objective of this study was to evaluate soil-surface $ CO_{2} $ fluxes from drained peat under different land-use systems in Riau and Jambi Provinces, Sumatra, Indonesia. Increase of $ CO_{2} $ concentration was tracked in measurement chambers using an Infrared Gas Analyzer (IRGA, LI-COR 820 model). The results showed that $ CO_{2} $ flux under oil palm (Elaeis guineensis) plantations ranged from 34 ± 16 and 45 ± 25 Mg $ CO_{2} $ $ ha^{–1} $ $ year^{–1} $ in two locations in Jambi province to 66 ± 25 Mg $ CO_{2} $ $ ha^{–1} $ $ year^{–1} $ for a site in Riau. For adjacent plots within 3.2 km in the Kampar Peninsula, Riau, $ CO_{2} $ fluxes from an oil palm plantation, an Acacia plantation, a secondary forest and a rubber plantation were 66 ± 25, 59 ± 19, 61 ± 25, 52 ± 17 Mg $ ha^{–1} $ $ year^{–1} $, respectively, while on bare land sites it was between 56 ± 30 and 67 ± 24 Mg $ CO_{2} $ $ ha^{–1} $ $ year^{–1} $, indicating no significant differences among the different land-use systems in the same landscape. Unexplained site variation seems to dominate over land use in influencing $ CO_{2} $ flux. $ CO_{2} $ fluxes varied with time of day (p < 0.001) with the noon flux as the highest, suggesting an overestimate of the mean flux values with the absence of night-time measurements. In general, $ CO_{2} $ flux increased with the depth of water table, suggesting the importance of keeping the peat as wet as possible.
$ CO_{2} $ emissions from tropical drained peat in Sumatra, Indonesia
Husnain, Husnain (author) / Wigena, I. G. Putu (author) / Dariah, Ai (author) / Marwanto, Setiari (author) / Setyanto, Prihasto (author) / Agus, Fahmuddin (author)
2014
Article (Journal)
Electronic Resource
English
BKL:
43.47
Globale Umweltprobleme
/
43.47$jGlobale Umweltprobleme
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