Matgrass sward plant species benefit from soil organisms

E.P. Brinkman, C.E. Raaijmakers, J.M.T. Bakx-Schotman, S.E. Hannula, R.H. Kemmers, W. De Boer, W.H. Van der Putten

Onderzoeksoutput: Bijdrage aan wetenschappelijk tijdschrift/periodieke uitgaveArtikelWetenschappelijkpeer review

9 Citaten (Scopus)
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Soilorganisms are important in the structuring of plant communities. However, little is known about how to apply this knowledge to vegetation management. Here, we examined if soilorganisms may promote plantspecies of characteristic habitats, and suppress plantspecies of disturbed habitats. We classified nineteen fields into four types: characteristic and disturbed matgrass swards and successfully and unsuccessfully restored fields. We recorded the vegetation composition and measured biotic and abiotic soil characteristics of the sites. In a pot experiment, we mixed non-sterilized (with soilorganisms) or sterilized (without soilorganisms) soil inoculum from each field with a common sterilized background soil. We planted seedlings of characteristic matgrass speciesAntennaria dioica and Nardus stricta, of disturbance indicators Deschampsia flexuosa and Agrostis capillaris, or a combination of the four species. At harvest, we measured root and shoot dry mass of all plants. The vegetation composition of characteristic matgrass swards differed from the disturbed and unsuccessfully restored fields. The successfully restored fields were intermediate. The composition of the nematode community tended to follow the same pattern. In the pot experiment, addition of soilorganisms increased the biomass of A. dioica, N. stricta and D. flexuosa, but decreased the biomass of A. capillaris. However, the effect of soilorganisms on plant biomass was not related to field type. A. dioica showed a large variation in biomass in non-sterilized, but not in sterilized soil. Soilorganisms from some sites increased plant biomass, whereas soilorganisms from other sites did not. The biomass of characteristic matgrass plants was lower in the presence of plants from disturbed swards, irrespective of the presence of soilorganisms. Probably A. capillaris was so much larger than the other species, that this overruled effects of added soilorganisms. Soilorganisms promoted growth of plantspecies characteristic of matgrass swards, whereas they reduced growth of a plantspecies characteristic of disturbed fields. Soilorganisms did not change the outcome of plant interactions, which was won by a disturbance indicator. Nevertheless, measurement of the growth stimulating capacity of a soil may be used to assess opportunities for reintroduction of characteristic plantspecies.
Originele taal-2Engels
Pagina's (van-tot)61-70
TijdschriftApplied Soil Ecology
StatusGepubliceerd - 2012


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