Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 524703
Title Soil fertility and species traits, but not diversity, drive productivity and biomass stocks in a Guyanese tropical rainforest
Author(s) Sande, M.T. van der; Arets, E.J.M.M.; Pena Claros, M.; Hoosbeek, M.R.; Caceres-Siani, Yasmani; Hout, P. van der; Poorter, L.
Department(s) Forest Ecology and Forest Management
Alterra - Vegetation, forest and landscape ecology
Chair Soil Chemistry and Chemical Soil Quality
Publication type Dataset
Publication year 2017
Keyword(s) biomass - soil fertility
Toponym Guyana
Abstract In this study, we test the effects of abiotic factors (light variation, caused by logging disturbance, and soil fertility) and biotic factors (species richness and functional trait composition) on biomass stocks (aboveground biomass, fine root biomass), SOM and productivity in a relatively monodominant Guyanese tropical rainforest. This forest grows on nutrient-poor soils and has few species that contribute most to total abundance. We therefore expected strong effects of soil fertility and species’ traits that determine resource acquisition and conservation, but not of diversity. We evaluated 6 years of data for 30 0.4-ha plots and tested hypotheses using structural equation models. Our results indicate that light availability (through disturbance) and soil fertility – especially P – strongly limit forest biomass productivity and stocks in this Guyanese forest. Low P availability may cause strong environmental filtering, which in turn results in a small set of dominant species. As a result, community trait composition but not species richness determines productivity and stocks of biomass and SOM in tropical forest on poor soils.
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