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Bender, S.F.* ; Schulz, S. ; Martinez-Cuesta, R. ; Laughlin, R.J.* ; Kublik, S. ; Pfeiffer-Zakharova, K. ; Vestergaard, G. ; Hartman, K.* ; Parladé, E.* ; Römbke, J.* ; Watson, C.J.* ; Schloter, M. ; van der Heijden, M.G.A.*

Simplification of soil biota communities impairs nutrient recycling and enhances above- and belowground nitrogen losses.

New Phytol. 240, 2020-2034 (2023)
DOI PMC
Creative Commons Lizenzvertrag
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Agriculture is a major source of nutrient pollution, posing a threat to the earth system functioning. Factors determining the nutrient use efficiency of plant–soil systems need to be identified to develop strategies to reduce nutrient losses while ensuring crop productivity. The potential of soil biota to tighten nutrient cycles by improving plant nutrition and reducing soil nutrient losses is still poorly understood. We manipulated soil biota communities in outdoor lysimeters, planted maize, continuously collected leachates, and measured N2O- and N2-gas emissions after a fertilization pulse to test whether differences in soil biota communities affected nutrient recycling and N losses. Lysimeters with strongly simplified soil biota communities showed reduced crop N (−20%) and P (−58%) uptake, strongly increased N leaching losses (+65%), and gaseous emissions (+97%) of N2O and N2. Soil metagenomic analyses revealed differences in the abundance of genes responsible for nutrient uptake, nitrate reduction, and denitrification that helped explain the observed nutrient losses. Soil biota are major drivers of nutrient cycling and reductions in the diversity or abundance of certain groups (e.g. through land-use intensification) can disrupt nutrient cycling, reduce agricultural productivity and nutrient use efficiency, and exacerbate environmental pollution and global warming.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
Schlagwörter Denitrification ; Ecosystem Functioning ; Maize ; Metagenome ; Nitrous Oxide ; Nutrient Leaching ; Soil Biodiversity; Greenhouse-gas Emissions; Complete Nitrification; Oxide Reductase; Biodiversity; Genes; Fungi; Water; Identification; Colonization; Diversity
ISSN (print) / ISBN 0028-646X
e-ISSN 1469-8137
Zeitschrift New Phytologist
Quellenangaben Band: 240, Heft: 5, Seiten: 2020-2034 Artikelnummer: , Supplement: ,
Verlag Wiley
Verlagsort 111 River St, Hoboken 07030-5774, Nj Usa
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Research Unit Comparative Microbiome Analysis (COMI)
Förderungen Schweizerischer Nationalfonds zur Forderung der Wissenschaftlichen Forschung