Seasonal variations of organic carbon in the sediments of Imphal River, Manipur

DOI

10.2991/msc-18.2018.10How to use a DOI?

Keywords

Organic carbon, variation, sediment, Imphal River, Manipur

Abstract

The Imphal River is major river in Manipur, India, that connects Manipur River and Bay of Bengal. The seasonal variations of organic carbon in surface sediments and the major sources along the course of the river were studied. Sediment samples were collected from five sampling sites, namely Lamlong Thong (Site 1), Minuthong (Site 2), Sanjenthong (Site 3), Bamon leikai (Site 4) and Singjamei Leishangthem leikai (Site 5). Organic carbon contents were determined using the Walkley-Black rapid back titration method. It varied considerably in different seasons as well as between different sampling sites. Highest organic carbon was at Site 3 (2.76%) in the winter season, whereas lowest was at Site 4 (1.29%) in the monsoon season. The highest organic carbon at Site 3 may be attributed to large amount of organic matter released from the Sanjenthong residential area and the cumulative effect of organic matter from municipal deposition in the upstream area. There is no proper mechanism of waste disposal, as inhabitants dumped waste directly into the river. The seasonal variation is also partly due to sedimentation of the dissolved and suspended particles found in the river. Site 1 and Site 4 are kept comparatively cleaner. People cultivate crops and they do not dump wastes into river as traditional dumping sites are properly maintained especially at site 1 and 4. Incidentally, lower organic carbon values were recorded from these sites.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Khuraijam Usha
AU  - K. Khelchandra Singh
PY  - 2018/12
DA  - 2018/12
TI  - Seasonal variations of organic carbon in the sediments of Imphal River, Manipur
BT  - Proceedings of the Mizoram Science Congress 2018 (MSC 2018) - Perspective and Trends in the Development of Science Education and Research
PB  - Atlantis Press
SP  - 56
EP  - 60
SN  - 2352-5401
UR  - https://doi.org/10.2991/msc-18.2018.10
DO  - 10.2991/msc-18.2018.10
ID  - Usha2018/12
ER  -