Citation:

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 2009 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):

The Jena Experiment (JenExp)

Coverage:

Latitude: 50.946100 * Longitude: 11.611300

Date/Time Start: 2009-01-01T00:00:00 * Date/Time End: 2009-12-31T00:00:00

Minimum HEIGHT above ground: 0.485 m * Maximum HEIGHT above ground: 0.485 m

Event(s):

JenExp_2009 (Jena Experiment 2009) * Latitude: 50.946100 * Longitude: 11.611300 * Date/Time Start: 2009-01-01T00:00:00 * Date/Time End: 2009-12-31T00:00:00 * Location: Thuringia, Germany * Method/Device: Experiment (EXP)

Parameter(s):

#	Name	Short Name	Unit	Method/Device	Comment
1	Experimental plot	Experimental plot			Detailed explanations of plots and the plant diversity gradient are provided in the section "further details".
2	Height aboveground, minimum	Height abovegr min	m		Vegetation was cut in 3cm above the soil surface.
3	Height aboveground, maximum	Height abovegr max	m		Rough approximation of maximum vegetation height
4	HEIGHT above ground	Height	m		Geocode – Average of min and max value
5	Date/time start	Date/time start			Of sampling campaign
6	Date/time end	Date/time end			Of sampling campaign
7	Unidentified plant material, biomass as dry weight	Unid plant mat biom	g/m²	Dried biomass sample	Measured on plot level
8	Weeds plant community, biomass as dry weight	Weeds biom	g/m²	Dried biomass sample	Measured on plot level
9	Dead plant material, biomass as dry weight	Dead plant mat biom	g/m²	Dried biomass sample	Measured on plot level
10	Trifolium repens, biomass as dry weight	T. repens biom	g/m²	Dried biomass sample	Measured on species level
11	Trifolium pratense, biomass as dry weight	T. pratense biom	g/m²	Dried biomass sample	Measured on species level
12	Poa trivialis, biomass as dry weight	P. trivialis biom	g/m²	Dried biomass sample	Measured on species level
13	Phleum pratense, biomass as dry weight	P. pratense biom	g/m²	Dried biomass sample	Measured on species level
14	Geranium pratense, biomass as dry weight	G. pratense biom	g/m²	Dried biomass sample	Measured on species level
15	Dactylis glomerata, biomass as dry weight	D. glomerata biom	g/m²	Dried biomass sample	Measured on species level
16	Arrhenatherum elatius, biomass as dry weight	A. elatius biom	g/m²	Dried biomass sample	Measured on species level
17	Anthriscus sylvestris, biomass as dry weight	A. sylvestris biom	g/m²	Dried biomass sample	Measured on species level
18	Alopecurus pratensis, biomass as dry weight	A. pratensis biom	g/m²	Dried biomass sample	Measured on species level
19	Sown plant community, biomass as dry weight	Sown plant biom	g/m²	Dried biomass sample	Measured on plot level

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Size:

5040 data points

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