Denitrification potential of riparian sediments amended with
Denitrification permanently removes nitrate from aquatic ecosystems, so construction of denitrification walls to enhance denitrification activity is often suggested to reduce the nitrate levels from tributary ecosystems. However, little information is available to guide the choice of appropriate o...
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| Main Author: | |
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| Format: | Article |
| Language: | English |
| Published: |
The Ecological Society of Korea
2014-09-01
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| Series: | Journal of Ecology and Environment |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.5141/ecoenv.2014.017 |
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| Summary: | Denitrification permanently removes nitrate from aquatic ecosystems, so construction of denitrification walls to enhance
denitrification activity is often suggested to reduce the nitrate levels from tributary ecosystems. However, little information
is available to guide the choice of appropriate organic materials for increasing denitrification rates in the walls. This
study investigated how differences in organic substrates originating from litter and organic materials affected denitrification
and carbon mineralization rates in riparian sediments. Potential denitrification rates were highest in riparian
sediments that contained large quantities of extractable organic carbon (Ext. Org C) and that had high anaerobic carbon
mineralization rates, but they were negatively correlated with C:N ratios. Therefore, this research suggested that the both
carbon quantity and quality should be considered when assessing the efficiency of organic substrates to remove nitrate
from tributary ecosystems. |
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| ISSN: | 2287-8327 2288-1220 |