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| Titel |
Drainage and land use impacts on changes in selected peat properties and peat degradation in West Kalimantan Province, Indonesia |
| VerfasserIn |
G. Z. Anshari, M. Afifudin, M. Nuriman, E. Gusmayanti, L. Arianie, R. Susana, R. W. Nusantara, J. Sugardjito, A. Rafiastanto |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1726-4170
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| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 7, no. 11 ; Nr. 7, no. 11 (2010-11-04), S.3403-3419 |
| Datensatznummer |
250005047
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| Publikation (Nr.) |
 copernicus.org/bg-7-3403-2010.pdf |
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| Zusammenfassung |
| Degradation of tropical peats is a global concern due to large Carbon
emission and loss of biodiversity. The degradation of tropical peats usually
starts when the government drains and clears peat forests into open peats
used for food crops, oil palm and industrial timber plantations. Major
properties of tropical peat forests are high in Water Contents (WC), Loss on
Ignition (LOI) and Total Organic Carbon (TOC), and low in peat pH, Dry Bulk
Density (DBD), and Total Nitrogen (TN). In this study, we investigated
impacts of drainage and land use change on these properties. We collected
peat samples from peat forests, logged over peat forest, industrial timber
plantation, community agriculture, and oil palms. We used independent t-tests and oneway ANOVA to
analyze mean differences of the research variables. We found that peat pH, DBD, and TN tend to increase.
A significant decrease of C/N ratio in oil palm and agriculture sites
importantly denotes a high rate of peat decompositions. Water contents, LOI, and TOC
are relatively constants. We suggest that changes
in pH, DBD, TN and atomic C/N ratio are important indicators for assessing
tropical peat degradation. We infer that land use change from tropical peat
forests into cleared and drained peats used for intensive timber harvesting,
oil palms and industrial timber plantations in Indonesia has greatly
degraded major ecological function of tropical peats as Carbon storage. |
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