Environmental forensics: a multi-catchment approach to detect origin of sediment featuring two pilot projects in Malaysia
Although there have been extensive studies on the hydrological and erosional impacts of logging, relatively little is known about the impacts of conversion into agricultural plantation (namely rubber and oil palm). Furthermore, studies on morphological impacts, sediment-bound chemistry and forens...
| Main Authors: | , , , , , , , , , |
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| Format: | Book Section |
| Language: | English |
| Published: |
Emerald
2019
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/6940/ http://eprints.uthm.edu.my/6940/1/C1508_aa86a7aa3101b128db5346da5c841fcc.pdf |
| Summary: | Although there have been extensive studies on the hydrological and erosional
impacts of logging, relatively little is known about the impacts of conversion
into agricultural plantation (namely rubber and oil palm). Furthermore,
studies on morphological impacts, sediment-bound chemistry and forensic
attribution of deposited sediment to their respective sources are scarcer. This
chapter introduces the potential for using the multi-proxy sediment finger�printing technique in this context. Featuring pilot projects in two major flood�prone river systems in Malaysia, the studies explore application of
geochemistry-based sediment source ascription. The geochemical signatures
of sediment mixtures on floodplains were compared to sediments from
upstream source tributaries. The tributaries were hypothesised to have differ�ent geochemical signatures in response to dominant land management. The
first case study took place in the Segama River system (4,023 km2
) of
Sabah, Malaysian Borneo where a mixture of primary forest, logged-forests |
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