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Aboveground community and species-specific plant biomass from the Jena Experiment (Main Experiment, year 2008)

By Wolfgang Weisser and Alexandra Weigelt

Abstract

This data set contains aboveground community 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 main experiment plots of a large grassland biodiversity experiment (the Jena Experiment; see further details below). In the main experiment, 82 grassland plots of 20 x 20 m were established from a pool of 60 species belonging to four functional groups (grasses, legumes, tall and small herbs). 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, 4, 8, 16 and 60 species) and functional richness (1, 2, 3, 4 functional groups). Plots were maintained by bi-annual weeding and mowing. Aboveground community biomass was harvested twice in 2008 just prior to mowing (during peak standing biomass in early June and in late August) on all experimental plots of the main experiment. This was done by clipping the vegetation at 3 cm above ground in three rectangles of 0.2 x 0.5 m per large plot. The location of these rectangles was assigned prior to each harvest by random selection of coordinates within the core area of the plots (i.e. the central 10 x 15 m). 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 (i.e., dead plant material in the data file), and remaining plant material that could not be assigned to any category (i.e., unidentified plant material in the data file). All 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 data for individual samples and the mean over samples for the biomass measures on the community level are given. Overall, analyses of the community biomass data have identified species richness as well as functional group composition as important drivers of a positive biodiversity-productivity relationship

Topics: Achillea millefolium, biomass as dry weight; Ajuga reptans, biomass as dry weight; Alopecurus pratensis, biomass as dry weight; Anthoxanthum odoratum, biomass as dry weight; Anthriscus sylvestris, biomass as dry weight; Arrhenatherum elatius, biomass as dry weight; Avenula pubescens, biomass as dry weight; Bellis perennis, biomass as dry weight; Bromus erectus, biomass as dry weight; Bromus hordeaceus, biomass as dry weight; Campanula patula, biomass as dry weight; Cardamine pratensis, biomass as dry weight; Carum carvi, biomass as dry weight; Centaurea jacea, biomass as dry weight; Cirsium oleraceum, biomass as dry weight; Crepis biennis, biomass as dry weight; Cynosurus cristatus, biomass as dry weight; Dactylis glomerata, biomass as dry weight; Date/time end; Date/time start; Daucus carota, biomass as dry weight; Dead plant material, biomass as dry weight; Dried biomass sample; EXP; Experiment; Experimental plot; Festuca pratensis, biomass as dry weight; Festuca rubra, biomass as dry weight; Galium mollugo, biomass as dry weight; Geranium pratense, biomass as dry weight; Glechoma hederacea, biomass as dry weight; HEIGHT above ground; Height aboveground, maximum; Height aboveground, minimum; Heracleum sphondylium, biomass as dry weight; Holcus lanatus, biomass as dry weight; Jena Experiment 2008; JenExp; JenExp_2008; Knautia arvensis, biomass as dry weight; Lathyrus pratensis, biomass as dry weight; Leontodon autumnalis, biomass as dry weight; Leontodon hispidus, biomass as dry weight; Leucanthemum vulgare, biomass as dry weight; Lotus corniculatus, biomass as dry weight; Luzula campestris, biomass as dry weight; Medicago lupulina, biomass as dry weight; Medicago x varia, biomass as dry weight; Onobrychis viciifolia, biomass as dry weight; Pastinaca sativa, biomass as dry weight; Phleum pratense, biomass as dry weight; Pimpinella major, biomass as dry weight; Plantago lanceolata, biomass as dry weight; Plantago media, biomass as dry weight; Poa pratensis, biomass as dry weight; Poa trivialis, biomass as dry weight; Primula veris, biomass as dry weight; Prunella vulgaris, biomass as dry weight; Ranunculus acris, biomass as dry weight; Ranunculus repens, biomass as dry weight; Replicate; Rumex acetosa, biomass as dry weight; Sanguisorba officinalis, biomass as dry weight; Sown plant community, biomass as dry weight; Taraxacum officinale, biomass as dry weight; The Jena Experiment; Thuringia, Germany; Tragopogon pratensis, biomass as dry weight; Treatment: aboveground: pesticide; Treatment: below pesticide; Treatment: drought; Treatment: eartworm exclosure; Treatment: fertilizing; Treatment: molluscide; Treatment: mowing; Treatment: nematicide; Treatment: phytometers; Treatment: seed addition; Treatment: special; Treatment: weeding; Treatment: weeding history; Trifolium campestre, biomass as dry weight; Trifolium dubium, biomass as dry weight; Trifolium fragiferum, biomass as dry weight; Trifolium hybridum, biomass as dry weight; Trifolium pratense, biomass as dry weight; Trifolium repens, biomass as dry weight; Trisetum flavescens, biomass as dry weight; Unidentified plant material, biomass as dry weight; Veronica chamaedrys, biomass as dry weight; Vicia cracca, biomass as dry weight; Weeds plant community, biomass as dry weight
Publisher: PANGAEA
Year: 2015
DOI identifier: 10.1594/PANGAEA.846532
OAI identifier: oai:pangaea.de:doi:10.1594/PANGAEA.846532
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