Aboveground community and species-specific plant biomass from the Jena Experiment (Dominance Experiment, time series since 2002)


Autoria(s): Weigelt, Alexandra; Roscher, Christiane; Scherer-Lorenzen, Michael; Schulze, Ernst-Detlef; Weisser, Wolfgang; Luo, Guangjuan; Meyer, Sebastian Tobias
Cobertura

LATITUDE: 50.946100 * LONGITUDE: 11.611300 * DATE/TIME START: 2002-01-01T00:00:00 * DATE/TIME END: 2008-12-31T00:00:00

Data(s)

23/04/2015

Resumo

This data set comprises a time series of aboveground community plant biomass (Sown plant community, Weed plant community, Dead plant material, and Unidentified plant material; all measured in biomass as dry weight) and species-specific biomass from the sown species of the dominance experiment plots of a large grassland biodiversity experiment (the Jena Experiment; see further details below). In the dominance experiment, 206 grassland plots of 3.5 x 3.5 m were established from a pool of 9 species that can be dominant in semi-natural grassland communities of the study region. In May 2002, varying numbers of plant species from this species pool were sown into the plots to create a gradient of plant species richness (1, 2, 3, 4, 6, and 9 species). Plots were maintained by bi-annual weeding and mowing. Aboveground community biomass was harvested twice a year, generally in May and August (in 2002 only once in September) on all experimental plots of the dominance experiment. This was done by clipping the vegetation at 3 cm above ground in two rectangles of 0.2 x 0.5 m per experimental plot. The location of these rectangles was assigned by random selection of new coordinates every year within the central area of the plots (excluding an outer edge of 50cm). The positions of the rectangles within plots were identical for all plots. The harvested biomass was sorted into categories: individual species for the sown plant species, weed plant species (species not sown at the particular plot), detached dead plant material, and remaining plant material that could not be assigned to any category. Biomass was dried to constant weight (70°C, >= 48 h) and weighed. Sown plant community biomass was calculated as the sum of the biomass of the individual sown species. The mean of both samples per plot and the individual measurements are provided in the data file. Overall, analyses of the community biomass data have identified species richness and the presence of particular species as an important driver of a positive biodiversity-productivity relationship.

Formato

application/zip, 7 datasets

Identificador

https://doi.pangaea.de/10.1594/PANGAEA.845452

Idioma(s)

en

Publicador

PANGAEA

Relação

Roscher, Christiane; Temperton, Vicky; Scherer-Lorenzen, Michael; Schmid, Bernhard; Schmitz, Martin; Schumacher, Jens; Buchmann, Nina; Weisser, Wolfgang; Schulze, Ernst-Detlef (2005): Overyielding in experimental grassland communities - irrespective of species pool or spatial scale. Ecology Letters, 8(4), 419-429, doi:10.1111/j.1461-0248.2005.00736.x

Plot information of the Jena Dominance Experiment (URI: http://store.pangaea.de/Publications/Jena_Experiment/PlotInformationDominanceExperiment.txt)

Roscher, Christiane; Schumacher, Jens; Baade, Jussi; Wilcken, Sara; Gleixner, Gerd; Weisser, Wolfgang; Schmid, Bernhard; Schulze, Ernst-Detlef (2004): The role of biodiversity for element cycling and trophic interactions: an experimental approach in a grassland community. Basic and Applied Ecology, 5(2), 107-121, doi:10.1078/1439-1791-00216

Direitos

Access constraints: access rights needed

Palavras-Chave #A. elatius biom; A. pratensis biom; A. sylvestris biom; Alopecurus pratensis, biomass as dry weight; Anthriscus sylvestris, biomass as dry weight; Arrhenatherum elatius, biomass as dry weight; Average of min and max value; D. glomerata biom; Dactylis glomerata, biomass as dry weight; Date/time end; Date/time start; Dead plant mat biom; Dead plant material, biomass as dry weight; Detailed explanations of plots and the plant diversity gradient are provided in the section "further details".; Dried biomass sample; Experimental plot; G. pratense biom; Geranium pratense, biomass as dry weight; Height; HEIGHT above ground; Height above ground, maximum; Height above ground, minimum; Height max; Height min; JenExp; Measured on plot level; Measured on species level; Of sampling campaign; P. pratense biom; P. trivialis biom; Phleum pratense, biomass as dry weight; Poa trivialis, biomass as dry weight; Replicate; Rough approximation of maximum vegetation height; Sown plant biom; Sown plant community, biomass as dry weight; Speciefies if multiple samples per plot have been taken and are provided in the data file.; T. pratense biom; T. repens biom; The Jena Experiment; Trifolium pratense, biomass as dry weight; Trifolium repens, biomass as dry weight; Unidentified plant material, biomass as dry weight; Unid plant mat biom; Vegetation was cut in 3cm above the soil surface.; Weeds biom; Weeds plant community, biomass as dry weight
Tipo

Dataset