Academic Journal
Ecosystem function enhanced by combining four functional types of plant species in intensively managed grassland mixtures: a 3-year continental-scale field experiment
| العنوان: | Ecosystem function enhanced by combining four functional types of plant species in intensively managed grassland mixtures: a 3-year continental-scale field experiment |
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| المؤلفون: | Finn, JA, Kirwan, L, Connolly, J, Sebastia, MT, Helgadottir, A, Baadshaug, OH, Belanger, G, Black, Alistair, Brophy, C, Collins, RP, Cop, J, Dalmannsdottir, S, Delgado, I, Elgersma, A, Fothergill, M, Frankow-Lindberg, BE, Ghesquiere, A, Golinska, B, Golinski, P, Grieu, P, Gustavsson, A-M, Hoglind, M, Huguenin-Elie, O, Jorgensen, M, Kadziuliene, Z, Kurki, P, Llurba, R, Lunnan, T, Porqueddu, C, Suter, M, Thumm, U, Luscher, A |
| المساهمون: | Wilsey, B |
| بيانات النشر: | British Ecological Society |
| سنة النشر: | 2013 |
| المجموعة: | Lincoln University (New Zealand): Lincoln U Research Archive |
| مصطلحات موضوعية: | agronomic mixtures, diversity effect, ecosystem function, forage yield, functional groups, monocultures, resource efficiency, sustainable intensification, traits, transgressive overyielding, ANZSRC::0703 Crop and Pasture Production |
| الوصف: | A coordinated continental-scale field experiment across 31 sites was used to compare the biomass yield of monocultures and four species mixtures associated with intensively managed agricultural grassland systems. To increase complementarity in resource use, each of the four species in the experimental design represented a distinct functional type derived from two levels of each of two functional traits, nitrogen acquisition (N2-fixing legume or nonfixing grass) crossed with temporal development (fast-establishing or temporally persistent). Relative abundances of the four functional types in mixtures were systematically varied at sowing to vary the evenness of the same four species in mixture communities at each site and sown at two levels of seed density. Across multiple years, the total yield (including weed biomass) of the mixtures exceeded that of the average monoculture in >97% of comparisons. It also exceeded that of the best monoculture (transgressive overyielding) in about 60% of sites, with a mean yield ratio of mixture to best-performing monoculture of 1·07 across all sites. Analyses based on yield of sown species only (excluding weed biomass) demonstrated considerably greater transgressive overyielding (significant at about 70% of sites, ratio of mixture to best-performing monoculture = 1·18). Mixtures maintained a resistance to weed invasion over at least 3 years. In mixtures, median values indicate <4% of weed biomass in total yield, whereas the median percentage of weeds in monocultures increased from 15% in year 1 to 32% in year 3. Within each year, there was a highly significant relationship (P < 0·0001) between sward evenness and the diversity effect (excess of mixture performance over that predicted from the monoculture performances of component species). At lower evenness values, increases in community evenness resulted in an increased diversity effect, but the diversity effect was not significantly different from the maximum diversity effect across a wide range of higher evenness ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | pp.365-375 |
| اللغة: | English |
| تدمد: | 1365-2664 |
| Relation: | The original publication is available from British Ecological Society - https://doi.org/10.1111/1365-2664.12041 - http://dx.doi.org/10.1111/1365-2664.12041; Journal of Applied Ecology; https://doi.org/10.1111/1365-2664.12041; Finn, J. A., Kirwan, L., Connolly, J., Sebastià, M. T., Helgadottir, A., Baadshaug, O. H., Bélanger, G., Black, A., Brophy, C., Collins, R. P., Čop, J., Dalmannsdóttir, S., Delgado, I., Elgersma, A., Fothergill, M., Frankow-Lindberg, B. E., Ghesquiere, A., Golinska, B., Golinski, P., Grieu, P., Gustavsson, A.-M., Höglind, M., Huguenin-Elie, O., Jørgensen, M., Kadziuliene, Z., Kurki, P., Llurba, R., Lunnan, T., Porqueddu, C., Suter, M., Thumm, U. and Lüscher, A. (2013). Ecosystem function enhanced by combining four functional types of plant species in intensively managed grassland mixtures: a 3-year continental-scale field experiment. Journal of Applied Ecology, 50(2), 365–375. doi:10.1111/1365-2664.12041; https://hdl.handle.net/10182/6984 |
| DOI: | 10.1111/1365-2664.12041 |
| الاتاحة: | https://hdl.handle.net/10182/6984 https://doi.org/10.1111/1365-2664.12041 |
| Rights: | © 2013 The Authors. Journal of Applied Ecology © 2013 British Ecological Society |
| رقم الانضمام: | edsbas.E11C7AEE |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 13652664 |
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| DOI: | 10.1111/1365-2664.12041 |