N2 fixation and performance of 12 legume species in a 6-year grassland biodiversity experiment

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

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N2 fixation and performance of 12 legume species in a 6-year grassland biodiversity experiment. / Roscher, Christiane; Thein, Susanne; Weigelt, Alexandra et al.
in: Plant and Soil, Jahrgang 341, Nr. 1-2, 04.2011, S. 333-348.

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

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Roscher C, Thein S, Weigelt A, Temperton VM, Buchmann N, Schulze ED. N2 fixation and performance of 12 legume species in a 6-year grassland biodiversity experiment. Plant and Soil. 2011 Apr;341(1-2):333-348. doi: 10.1007/s11104-010-0647-0

Bibtex

@article{188ee1d1fe514a939bab889e643a07c1,
title = "N2 fixation and performance of 12 legume species in a 6-year grassland biodiversity experiment",
abstract = "Highly variable effects of legumes have been observed in biodiversity experiments, but little is known about plant diversity effects on N2 fixation of legume species. We used the 15N natural abundance method in a non-fertilized regularly mown 6-year biodiversity experiment (Jena Experiment) to quantify N2 fixation of 12 legume species. The proportion of legume N derived from the atmosphere (%Ndfa) differed significantly among legume species. %Ndfa values were lower in 2004 after setting-up the experiment (73 ± 20) than in the later years (2006: 80 ± 16; 2008: 78 ± 12). Increasing species richness had positive effects on %Ndfa in 2004 and 2006, but not in 2008. High biomass production of legumes in 2004 and 2006 declined to lower levels in 2008. In 2006, legume positioning within the canopy best explained variation in %Ndfa values indicating a lower reliance of tall legumes on N2 fixation. In 2008, larger %Ndfa values of legumes were related to lower leaf P concentrations suggesting that the availability of phosphorus limited growth of legumes. In summary, diversity effects on N2 fixation depend on legume species identity, their ability to compete for soil nutrients and light and may vary temporally in response to changing resource availability.",
keywords = "N natural abundance, Biodiversity, Jena Experiment, Legumes, N fixation, Phosphorus, Biology, Ecosystems Research",
author = "Christiane Roscher and Susanne Thein and Alexandra Weigelt and Temperton, {Vicky M.} and Nina Buchmann and Schulze, {Ernst Detlef}",
year = "2011",
month = apr,
doi = "10.1007/s11104-010-0647-0",
language = "English",
volume = "341",
pages = "333--348",
journal = "Plant and Soil",
issn = "0032-079X",
publisher = "Springer",
number = "1-2",

}

RIS

TY - JOUR

T1 - N2 fixation and performance of 12 legume species in a 6-year grassland biodiversity experiment

AU - Roscher, Christiane

AU - Thein, Susanne

AU - Weigelt, Alexandra

AU - Temperton, Vicky M.

AU - Buchmann, Nina

AU - Schulze, Ernst Detlef

PY - 2011/4

Y1 - 2011/4

N2 - Highly variable effects of legumes have been observed in biodiversity experiments, but little is known about plant diversity effects on N2 fixation of legume species. We used the 15N natural abundance method in a non-fertilized regularly mown 6-year biodiversity experiment (Jena Experiment) to quantify N2 fixation of 12 legume species. The proportion of legume N derived from the atmosphere (%Ndfa) differed significantly among legume species. %Ndfa values were lower in 2004 after setting-up the experiment (73 ± 20) than in the later years (2006: 80 ± 16; 2008: 78 ± 12). Increasing species richness had positive effects on %Ndfa in 2004 and 2006, but not in 2008. High biomass production of legumes in 2004 and 2006 declined to lower levels in 2008. In 2006, legume positioning within the canopy best explained variation in %Ndfa values indicating a lower reliance of tall legumes on N2 fixation. In 2008, larger %Ndfa values of legumes were related to lower leaf P concentrations suggesting that the availability of phosphorus limited growth of legumes. In summary, diversity effects on N2 fixation depend on legume species identity, their ability to compete for soil nutrients and light and may vary temporally in response to changing resource availability.

AB - Highly variable effects of legumes have been observed in biodiversity experiments, but little is known about plant diversity effects on N2 fixation of legume species. We used the 15N natural abundance method in a non-fertilized regularly mown 6-year biodiversity experiment (Jena Experiment) to quantify N2 fixation of 12 legume species. The proportion of legume N derived from the atmosphere (%Ndfa) differed significantly among legume species. %Ndfa values were lower in 2004 after setting-up the experiment (73 ± 20) than in the later years (2006: 80 ± 16; 2008: 78 ± 12). Increasing species richness had positive effects on %Ndfa in 2004 and 2006, but not in 2008. High biomass production of legumes in 2004 and 2006 declined to lower levels in 2008. In 2006, legume positioning within the canopy best explained variation in %Ndfa values indicating a lower reliance of tall legumes on N2 fixation. In 2008, larger %Ndfa values of legumes were related to lower leaf P concentrations suggesting that the availability of phosphorus limited growth of legumes. In summary, diversity effects on N2 fixation depend on legume species identity, their ability to compete for soil nutrients and light and may vary temporally in response to changing resource availability.

KW - N natural abundance

KW - Biodiversity

KW - Jena Experiment

KW - Legumes

KW - N fixation

KW - Phosphorus

KW - Biology

KW - Ecosystems Research

UR - http://www.scopus.com/inward/record.url?scp=79952623573&partnerID=8YFLogxK

U2 - 10.1007/s11104-010-0647-0

DO - 10.1007/s11104-010-0647-0

M3 - Journal articles

AN - SCOPUS:79952623573

VL - 341

SP - 333

EP - 348

JO - Plant and Soil

JF - Plant and Soil

SN - 0032-079X

IS - 1-2

ER -

DOI