Effects of the inoculation of cyanobacteria on the microstructure and the structural stability of a tropical soil

被引：5

作者：

Oumarou Malam Issa

Christian Défarge

Yves Le Bissonnais

Béatrice Marin

Odile Duval

Ary Bruand

Luigi Paolo D’Acqui

Sofie Nordenberg

Marcus Annerman

机构：

[1] Université de Reims Champagne-Ardenne,INRA LISAH (Laboratoire d’étude des Interactions Sol

[2] Institut des Sciences de la Terre d’Orléans, Agrosystème

[3] Unité Mixte de Recherche ENSA.M INRA-IRD Campus AGRO,Hydrosystème)

[4] Unité de Science du Sol,INRA

[5] Centre de Recherche d’Orléans,undefined

[6] Istituto per lo Studio degli Ecosistemi ISE-CNR,undefined

来源：

Plant and Soil | 2007年 / 290卷

关键词：

Cryo-SEM; Cyanobacteria; Inoculation; Organo-mineral aggregates; Structural stability;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Cyanobacteria are widespread photosynthetic microorganisms among which some are able to fix atmospheric nitrogen. We investigated the impact of indigenous cyanobacteria strains (Nostoc) inoculation on physical characteristics of poorly aggregated soils from Guquka (Eastern Cape, South Africa). The soil aggregates (3–5 mm) were arranged into a layer of 10–20 mm thick, and sprayed with cyanobacteria solution. Subsequently the inoculated and un-inoculated samples were incubated (30°C, 80% humidity, continuous illumination at 100 μmol m−2 s−1). Their micromorphological characteristics and aggregate stability were investigated, after 1, 2, 3, 4 and 6 weeks of incubation, by using high resolution Cryo-SEM and aggregate breakdown tests.

引用

页码：209 / 219

页数：10

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