The impact of mountain hay meadow management on litter decomposition and root colonization by arbuscular mycorrhizal fungi

Herzog, Chantal; Lessard-Therrien, Malie; Van der Heijden, M.; Arlettaz, Raphaël; Humbert, Jean-Yves (2019). The impact of mountain hay meadow management on litter decomposition and root colonization by arbuscular mycorrhizal fungi. In: Improving sown grasslands through breeding and management. Grassland Science in Europe: Vol. 24 (pp. 452-454). EGF and Eucarpia

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Soil life and particularly arbuscular mycorrhizal fungi (AMF) play a fundamental role in ecosystem functioning and are crucial drivers of vegetation dynamics and efficient nutrient use. This study investigated the effect of liquid manure application and aerial irrigation on litter decomposition and AMF colonization in mountain meadowlands. Six intensity levels of irrigation and fertilization were experimentally tested in eleven meadows located in the Swiss Alps. For litter decomposition, a novel teabag approach was followed. AMF root colonization was assessed from field samples and a trap culture experiment. Decomposition measured with tea bag burials was higher under maximal management intensity levels. AMF colonization was 22% lower in high-input compared to low-input plots in the field while in the trap cultures colonization levels depended on the functional plant species group. Our findings shed light on the impact of management intensification in mountain hay meadows on belowground functioning. Ultimately, the findings of this study will help to develop pragmatic management recommendations to farmers that would allow acceptable yields while preserving functional diversity.

Item Type:

Book Section (Book Chapter)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Ecology and Evolution (IEE) > Conservation Biology
08 Faculty of Science > Department of Biology > Institute of Ecology and Evolution (IEE)

UniBE Contributor:

Herzog, Chantal; Lessard-Therrien, Malie; Arlettaz, Raphaël and Humbert, Jean-Yves

Subjects:

500 Science > 570 Life sciences; biology
500 Science > 580 Plants (Botany)

Series:

Grassland Science in Europe

Publisher:

EGF and Eucarpia

Language:

English

Submitter:

Olivier Roth

Date Deposited:

01 Apr 2020 11:30

Last Modified:

01 Apr 2020 11:30

BORIS DOI:

10.7892/boris.141432

URI:

https://boris.unibe.ch/id/eprint/141432

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