Data from: Multispecies for multifunctions: combining four complementary species enhances multifunctionality of sown grassland
Suter, Matthias; Huguenin-Elie, Olivier; Lüscher, Andreas (2021), Data from: Multispecies for multifunctions: combining four complementary species enhances multifunctionality of sown grassland, Dryad, Dataset, https://doi.org/10.5061/dryad.5dv41ns5d
Assessing the overall performance of ecosystems requires a quantitative evaluation of multifunctionality. We investigated plant species diversity effects on individual functions and overall multifunctionality in a grassland experiment with sown monocultures and mixtures comprising four key grass and legume species. Nitrogen fertilisation rates were 50, 150, and 450 kg N ha-1 yr-1 (N50, N150, N450). Ten functions were measured representing forage production, N cycling, and forage quality, all being related to either productivity or environmental footprint. Multifunctionality was analysed by a novel approach using the mean log response ratio across functions. Over three experimental years, mixture effects benefited all forage production and N cycling functions, while sustaining high forage quality. Thus, mixture effects did not provoke any trade-off among the analysed functions. High N fertilisation rates generally diminished mixture benefits. Multifunctionality of four-species mixtures was considerably enhanced, and mixture overall performance was up to 1.9 (N50), 1.8 (N150), and 1.6 times (N450) higher than in averaged monocultures. Multifunctionality of four-species mixtures at N50 was at least as high as in grass monocultures at N450. Sown grass–legume mixtures combining few complementary species at low to moderate N fertilisation sustain high multifunctionality and are a ‘ready-to-use’ option for the sustainable intensification of agriculture.
Suter et al. 2021 Functional responses of ten functions from 78 plant communities
Data contains the functional responses of monocultures and of two- and four-species mixtures for ten functions at three nitrogen fertilisation levels, averaged across the three experimental years and scaled to range between 0 and 1 .
The functions "stability", "weed biomass", and "NO3 in soil solution" were first natural log transformed and then scaled to 0-1.