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The agrodiversity experiment

three years of data from a multisite study in intensively managed grasslands

Kirwan, Laura and Frankow-Lindberg, Bodil and Gustavsson, Anne-Maj and Finn, John A (2014). The agrodiversity experiment. UNSPECIFIED.

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Abstract

Intensively managed grasslands are globally prominent ecosystems. We investigated whether experimental increases in plant diversity in intensively managed grassland communities can increase their resource use efficiency. This work consisted of a coordinated, continental-scale 33-site experiment. The core design was 30 plots, representing 15 grassland communities at two seeding densities. The 15 communities comprised four monocultures (two grasses and two legumes) and 11 four-species mixtures that varied in the relative abundance of the four species at sowing. There were 1028 plots in the core experiment, with another 572 plots sown for additional treatments. Sites followed a protocol and employed the same experimental methods with certain plot management factors, such as seeding rates and number of cuts, determined by local practice. The four species used at a site depended on geographical location, but the species were chosen according to four functional traits: a fast-establishing grass, a slow-establishing persistent grass, a fast-establishing legume, and a slow-establishing persistent legume. As the objective was to maximize yield for intensive grassland production, the species chosen were all highyielding agronomic species. The data set contains species-specific biomass measurements (yield per species and of weeds) for all harvests for up to four years at 33 sites. Samples of harvested vegetation were also analyzed for forage quality at 26 sites. These data should be of interest to ecologists studying relationships between diversity and ecosystem function and to agronomists interested in sustainable intensification. The large spatial scale of the sites provides opportunity for analyses across spatial (and temporal) scales. The database can also complement existing databases and meta-analyses on biodiversity– ecosystem function relationships in natural communities by focusing on those same relationships within intensively managed agricultural grasslands.

Authors/Creators:Kirwan, Laura and Frankow-Lindberg, Bodil and Gustavsson, Anne-Maj and Finn, John A
Title:The agrodiversity experiment
Subtitle:three years of data from a multisite study in intensively managed grasslands
Series/Journal:Ecology (0012-9658)
Year of publishing :2014
Volume:95
Number:9
Page range:2680-2680
Number of Pages:1
ISSN:0012-9658
Language:English
Publication Type:Other
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Agris subject categories.:P Natural resources > P30 Soil science and management
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Soil Science
Keywords:agricultural grasslands, biodiversity, ecosystem function, forage quality, mixtures, monocultures, overyielding, plant community, species biomass, yield
URN:NBN:urn:nbn:se:slu:epsilon-e-2783
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-2783
Additional ID:
Type of IDID
DOI10.1890/14-0170.1
ID Code:12231
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
VH - Faculty of Veterinary Medicine and Animal Science
Department:(NL, NJ) > Dept. of Agricultural Research for Northern Sweden
(VH) > Dept. of Agricultural Research for Northern Sweden

(NL, NJ) > Dept. of Crop Production Ecology
Deposited By: SLUpub Connector
Deposited On:03 Jul 2015 08:21
Metadata Last Modified:03 Jul 2015 08:21

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