Microbial response of distinct soil types to land-use intensification at a South-Indian rural-urban interface

Simple item page
dc.date.accessioned2022-07-01T13:23:49Z
dc.date.available2022-07-01T13:23:49Z
dc.date.issued2022-03-01
dc.description.sponsorshipGefördert im Rahmen des Projekts DEALger
dc.identifierdoi:10.17170/kobra-202204206050
dc.identifier.urihttp://hdl.handle.net/123456789/13980
dc.language.isoengeng
dc.relation.doidoi:10.1007/s11104-021-05292-2
dc.rightsNamensnennung 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectnitrogen fertilizationeng
dc.subjectcarbon cyclingeng
dc.subjecttropical agricultureeng
dc.subjectmetabolic quotienteng
dc.subjectδ¹³C of particulate organic mattereng
dc.subjectirrigationeng
dc.subject.ddc570
dc.subject.swdStickstoffdüngungger
dc.subject.swdKohlenstoffkreislaufger
dc.subject.swdTropenger
dc.subject.swdLandwirtschaftger
dc.subject.swdPartikulärer organischer Stoffger
dc.subject.swdBewässerungger
dc.titleMicrobial response of distinct soil types to land-use intensification at a South-Indian rural-urban interfaceeng
dc.typeAufsatz
dc.type.versionpublishedVersion
dcterms.abstractAims Rural-urban dynamics are leading to agricultural intensification practices, which affect microbial ecosystem functions in a soil-specific way. This study aimed to investigate what effects agricultural intensification has on soil microbial communities. Methods The effects of N fertilization level (low and high) and crop type (maize and finger millet) on microbial communities were investigated, using a two-factorial split-plot design, at two fields (irrigated and rainfed) on typical soil types (Nitisol and Acrisol) mimicking an intensification gradient in the rural-urban interface of the Indian Megacity Bangalore. Results The Nitisol had higher pH and clay content than the Acrisol. In combination with irrigation, this led to higher aboveground plant biomass (APB), soil organic carbon (SOC), microbial biomass (MB), fungal ergosterol and microbial necromass. High APB resulted in low total P content, due to P export in APB and high soil C/P and MB-C/P ratios in the Nitisol. Crop type and N fertilization level did not affect microbial parameters in the irrigated Nitisol, whereas crop type affected ergosterol and MBP and N fertilization level affected basal respiration in the rainfed Acrisol. Particulate organic matter (POM) was a major explanatory factor for most microbial parameters in both soils. In the Acrisol, drought reduced metabolic demand, which counteracted negative effects of low pH and clay on the MB. This was indicated by similar metabolic quotients and MBC/SOC ratios in both soils. Conclusions These results indicate the current need for water and high-quality fresh plant inputs to improve the microbial contribution to soil fertility at Bangalore.eng
dcterms.accessRightsopen access
dcterms.creatorMoran-Rodas, Virna Estefania
dcterms.creatorChavannavar, Suvarna V.
dcterms.creatorJörgensen, Rainer Georg
dcterms.creatorWachendorf, Christine
dcterms.source.identifiereissn:1573-5036
dcterms.source.issueIssue 1-2
dcterms.source.journalPlant and Soileng
dcterms.source.pageinfo389-405
dcterms.source.volumeVolume 473
kup.iskupfalse

Files

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
Moran_Rodas2022_Article_MicrobialResponseOfDistinctSoi.pdf
Size:
1.02 MB
Format:
Adobe Portable Document Format
Description:
Download

License bundle

Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
3.03 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Artikel