Multi-functional pollution mitigation in a rehabilitated mangrove conservation area

Details

Serval ID
serval:BIB_B089D30D0ECA
Type
Article: article from journal or magazin.
Collection
Publications
Title
Multi-functional pollution mitigation in a rehabilitated mangrove conservation area
Journal
Ecological Engineering
Author(s)
Wickramasinghe Sriyani, Borin Maurizio, Kotagama Sarath W., Cochard Roland, Anceno Alfredo J., Shipin Oleg V.
ISSN
0925-8574 (Print)
Publication state
Published
Issued date
05/2009
Peer-reviewed
Oui
Volume
35
Number
5
Pages
898-907
Language
english
Abstract
Many mangroves were forced to act as informal pollution mitigation zones and double up as conservation areas. Long-term data are presented for a high-profile mangrove reserve acting as such a mitigation zone in urban Thailand. Efficient mineralization of organic wastes by mangrove soil in a semi-engineered and hydraulically contained zone made it possible not to compromise the reserve's natural status. The data demonstrate that the treatment zone could process organic waste with an eight-fold efficiency in comparison to previous reports. Clones of microbial taxa critically novel for mangrove ecosystems were recovered (anammox bacteria and archaeal ammonia oxidizers), suggesting their significant presence. Community structures of nitrogen-cycling and other taxa of natural and hypernutrified soils did not differ substantially. It is suggested that waste nitrogen removal may have occurred through bacterial and archaeal nitrification, conventional denitrification and anammox process. The article addresses the issue of multi-functional use of ever-shrinking habitats available for wildlife conservation. Data on key microbial, floral and faunal communities demonstrate that the mangrove exhibited stability under the major nutrient load. Supply of additional nutrients correlated with an enhancement of mangrove growth and diversity of selected key invertebrates/vertebrates which increase conservation potential of the reserve. Serving to determine ecologically safe nutrification limits, the study suggests that a successful rehabilitation of an urban mangrove to its near-natural status is feasible.
Keywords
Mangroves, Waste treatment, Nitrogen removal, Anammox, Archaeal nitrification, Rehabilitation, Biodiversity
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Create date
05/02/2018 17:02
Last modification date
20/08/2019 15:19
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