Interlinked chemical-biological processes in anoxic waterlogged soil – A review

Wetland soils are predominantly oxygen-free includes swamps, marshes, coastal wetlands, floodplains, etc. and globally important for rice cultivation. The chemical changes happen due to changing electrochemical properties and also by anaerobic microorganisms. Anaerobic microorganisms play a key role...

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Main Authors: DEBARATI BHADURI, ASIT MANDAL, KOUSHIK CHAKRABORTY, DIBYENDU CHATTERJEE, RINKU DEY
Format: Article
Language:English
Published: Indian Council of Agricultural Research 2017-12-01
Series:The Indian Journal of Agricultural Sciences
Subjects:
Online Access:https://epubs.icar.org.in/index.php/IJAgS/article/view/76483
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author DEBARATI BHADURI
ASIT MANDAL
KOUSHIK CHAKRABORTY
DIBYENDU CHATTERJEE
RINKU DEY
author_facet DEBARATI BHADURI
ASIT MANDAL
KOUSHIK CHAKRABORTY
DIBYENDU CHATTERJEE
RINKU DEY
author_sort DEBARATI BHADURI
collection DOAJ
description Wetland soils are predominantly oxygen-free includes swamps, marshes, coastal wetlands, floodplains, etc. and globally important for rice cultivation. The chemical changes happen due to changing electrochemical properties and also by anaerobic microorganisms. Anaerobic microorganisms play a key role in bringing about nutrient transformations with a general trend of increase in soil pH, electrical conductivity, and ionic strength but decrease in redox potential in waterlogged soils. The biogeochemical cycling of nutrients (C, N, P, S) by facultative and obligate anaerobes help to sustain life in submerged conditions. Under flooded conditions the availability of P, Ca, Mg, Fe, Mn, Mo, and Si increases while that of S, Zn and Cu decreases. Moreover, fermentative bacteria decompose organic matter into CO2, H2, acetate, propionate, butyrate, fatty acids, amino acids, alcohols, etc. with a terminal step of methane formation by methanogens. Anaerobic soils are thus important for maintaining fertility, ecosystem productivity, and functions.
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spelling doaj.art-103965c019e54ef2931f6c11588e47242023-07-20T11:44:54ZengIndian Council of Agricultural ResearchThe Indian Journal of Agricultural Sciences0019-50222394-33192017-12-01871210.56093/ijas.v87i12.76483Interlinked chemical-biological processes in anoxic waterlogged soil – A reviewDEBARATI BHADURIASIT MANDALKOUSHIK CHAKRABORTYDIBYENDU CHATTERJEERINKU DEYWetland soils are predominantly oxygen-free includes swamps, marshes, coastal wetlands, floodplains, etc. and globally important for rice cultivation. The chemical changes happen due to changing electrochemical properties and also by anaerobic microorganisms. Anaerobic microorganisms play a key role in bringing about nutrient transformations with a general trend of increase in soil pH, electrical conductivity, and ionic strength but decrease in redox potential in waterlogged soils. The biogeochemical cycling of nutrients (C, N, P, S) by facultative and obligate anaerobes help to sustain life in submerged conditions. Under flooded conditions the availability of P, Ca, Mg, Fe, Mn, Mo, and Si increases while that of S, Zn and Cu decreases. Moreover, fermentative bacteria decompose organic matter into CO2, H2, acetate, propionate, butyrate, fatty acids, amino acids, alcohols, etc. with a terminal step of methane formation by methanogens. Anaerobic soils are thus important for maintaining fertility, ecosystem productivity, and functions.https://epubs.icar.org.in/index.php/IJAgS/article/view/76483Anaerobic soilC-N transformationsMicroorganismsNutrient cyclingSoil organic matterWaterlogging
spellingShingle DEBARATI BHADURI
ASIT MANDAL
KOUSHIK CHAKRABORTY
DIBYENDU CHATTERJEE
RINKU DEY
Interlinked chemical-biological processes in anoxic waterlogged soil – A review
The Indian Journal of Agricultural Sciences
Anaerobic soil
C-N transformations
Microorganisms
Nutrient cycling
Soil organic matter
Waterlogging
title Interlinked chemical-biological processes in anoxic waterlogged soil – A review
title_full Interlinked chemical-biological processes in anoxic waterlogged soil – A review
title_fullStr Interlinked chemical-biological processes in anoxic waterlogged soil – A review
title_full_unstemmed Interlinked chemical-biological processes in anoxic waterlogged soil – A review
title_short Interlinked chemical-biological processes in anoxic waterlogged soil – A review
title_sort interlinked chemical biological processes in anoxic waterlogged soil a review
topic Anaerobic soil
C-N transformations
Microorganisms
Nutrient cycling
Soil organic matter
Waterlogging
url https://epubs.icar.org.in/index.php/IJAgS/article/view/76483
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