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Wagg, Cameron; Ebeling, Anne; Schmid, Bernhard; Weigelt, Alexandra; Fischer, Markus (2019): Aboveground community and species-specific plant biomass from the Jena Experiment (Dominance Experiment, year 2014) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.910213, In: Weigelt, Alexandra; Ebeling, Anne; Roscher, Christiane; Temperton, Vicky; De Luca, Enrica; Wagg, Cameron; Buchmann, Nina; Fischer, Markus; Scherer-Lorenzen, Michael; Schmid, Bernhard; Schulze, Ernst-Detlef; Weisser, Wolfgang W; Luo, Guangjuan; Meyer, Sebastian Tobias (2016): Collection of aboveground community and species-specific plant biomass from the Jena Experiment (time series since 2002) [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.866358

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Abstract:
This data set contains 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 plant 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. Plot size was reduced to 1.0 x 1.0 m in 2009. Aboveground community biomass was harvested twice in May and August 2014 on all experimental plots of the dominance experiment. This was done by clipping the vegetation at 3 cm above ground in one rectangle of 0.2 x 0.5 m in the center of each experimental plot. 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. 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. 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.
Related to:
Clark, Adam Thomas; Turnbull, Lindsay Ann; Tredennick, Andrew; Allan, Eric; Harpole, W Stanley; Mayfield, Margaret M; Soliveres, Santiago; Barry, Kathryn; Eisenhauer, Nico; de Kroon, Hans; Rosenbaum, Benjamin; Wagg, Cameron; Weigelt, Alexandra; Feng, Yanhao; Roscher, Christiane; Schmid, Bernhard (2019): Predicting species abundances in a grassland biodiversity experiment: Trade‐offs between model complexity and generality. Journal of Ecology, https://doi.org/10.1111/1365-2745.13316
Feng, Yanhao; Soliveres, Santiago; Allan, Eric; Rosenbaum, Benjamin; Wagg, Cameron; Tabi, Andrea; De Luca, Enrica; Eisenhauer, Nico; Schmid, Bernhard; Weigelt, Alexandra; Weisser, Wolfgang W; Roscher, Christiane; Fischer, Markus (2020): Inferring competitive outcomes, ranks and intransitivity from empirical data: A comparison of different methods. Methods in Ecology and Evolution, 11(1), 117-128, https://doi.org/10.1111/2041-210X.13326
Project(s):
Coverage:
Latitude: 50.946100 * Longitude: 11.611300
Date/Time Start: 2014-01-01T00:00:00 * Date/Time End: 2014-12-31T00:00:00
Minimum HEIGHT above ground: 0.485 m * Maximum HEIGHT above ground: 0.485 m
Event(s):
JenExp_2014 (Jena Experiment 2014) * Latitude: 50.946100 * Longitude: 11.611300 * Date/Time Start: 2014-01-01T00:00:00 * Date/Time End: 2014-12-31T00:00:00 * Location: Thuringia, Germany * Method/Device: Experiment (EXP)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Experimental plotExperimental plotDetailed explanations of plots and the plant diversity gradient are provided in the section "further details".
2Height aboveground, minimumHeight abovegr minmVegetation was cut in 3cm above the soil surface.
3Height aboveground, maximumHeight abovegr maxmRough approximation of maximum vegetation height
4HEIGHT above groundHeightmGeocode – Average of min and max value
5Date/time startDate/time startOf sampling campaign
6Date/time endDate/time endOf sampling campaign
7Unidentified plant material, biomass as dry weightUnid plant mat biomg/m2Dried biomass sampleMeasured on plot level
8Weeds plant community, biomass as dry weightWeeds biomg/m2Dried biomass sampleMeasured on plot level
9Dead plant material, biomass as dry weightDead plant mat biomg/m2Dried biomass sampleMeasured on plot level
10Trifolium repens, biomass as dry weightT. repens biomg/m2Dried biomass sampleMeasured on species level
11Trifolium pratense, biomass as dry weightT. pratense biomg/m2Dried biomass sampleMeasured on species level
12Poa trivialis, biomass as dry weightP. trivialis biomg/m2Dried biomass sampleMeasured on species level
13Phleum pratense, biomass as dry weightP. pratense biomg/m2Dried biomass sampleMeasured on species level
14Geranium pratense, biomass as dry weightG. pratense biomg/m2Dried biomass sampleMeasured on species level
15Dactylis glomerata, biomass as dry weightD. glomerata biomg/m2Dried biomass sampleMeasured on species level
16Arrhenatherum elatius, biomass as dry weightA. elatius biomg/m2Dried biomass sampleMeasured on species level
17Anthriscus sylvestris, biomass as dry weightA. sylvestris biomg/m2Dried biomass sampleMeasured on species level
18Alopecurus pratensis, biomass as dry weightA. pratensis biomg/m2Dried biomass sampleMeasured on species level
19Sown plant community, biomass as dry weightSown plant biomg/m2Dried biomass sampleMeasured on plot level
Size:
4682 data points

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