Weigelt, Alexandra; Weisser, Wolfgang W (2015): Plant height along the plant diversity gradient in the Jena Experiment (Main Experiment, year 2008) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.855001, In: Weigelt, Alexandra; Temperton, Vicky; Scherber, Christoph; Mwangi, Peter N; Buchmann, Nina; Weisser, Wolfgang W; Guderle, Marcus; Meyer, Sebastian Tobias (2015): Collection of data on plant height along the plant diversity gradient in the Jena Experiment (Main Experiment, time series since 2002) [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.855002
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Abstract:
This data set contains measurements of plant height: vegetative height (heighest leaf) and regenerative height (heighest flower) in 2008 from 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.
In 2008, plant height was recorded twice a year just before biomass harvest (during peak standing biomass in late May and in late August). For target plant individuals at 10 points separated by 1 m each along a transect in the central area in the plots, vegetative height (heighest leaf) and regenerative height (heighest flower) were measured as standing height (without stretching the plant). In 2008, also the plots of the management experiment, that altered mowing frequency and fertilized subplots (see further details below) were sampled by measuring vegatation height five times, every 1m on a 5m transekt along the side of the management plots. Provided are the individual measurements and the mean over the measured plants.
Related to:
Weigelt, Alexandra; Marquard, Elisabeth; Temperton, Vicky; Roscher, Christiane; Scherber, Christoph; Mwangi, Peter N; von Felten, Stefanie; Buchmann, Nina; Schmid, Bernhard; Schulze, Ernst-Detlef; Weisser, Wolfgang W (2010): The Jena Experiment: six years of data from a grassland biodiversity experiment. Ecology, 91(3), 930-931, https://doi.org/10.1890/09-0863.1
Weigelt, Alexandra; Weisser, Wolfgang W; Buchmann, N; Scherer-Lorenzen, Michael (2009): Biodiversity for multifunctional grasslands: equal productivity in high-diversity low-input and low-diversity high-input systems. Biogeosciences, 6(8), 1695-1706, https://doi.org/10.5194/bg-6-1695-2009
Further details:
Roscher, Christiane; Schumacher, Jens; Baade, Jussi; Wilcken, Sara; Gleixner, Gerd; Weisser, Wolfgang W; 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, https://doi.org/10.1078/1439-1791-00216
Project(s):
The Jena Experiment (JenExp)
Coverage:
Latitude: 50.946100 * Longitude: 11.611300
Date/Time Start: 2008-01-01T00:00:00 * Date/Time End: 2008-12-31T00:00:00
Minimum HEIGHT above ground: 0.75 m * Maximum HEIGHT above ground: 0.75 m
Event(s):
Comment:
There are two types of missing values contained in the dataset. Empty cells represent missing values that result from the design of the experiment when the respective value does not occur and could thus not be measured. For example, in the case of species-specific biomass cells are left blank, when the species was not sown into the respective plot. Missing values that resulted from methodological problems, sampling errors, or lost samples/data are marked with "-9999".
This datasets is part of a collection of measurements of plant height in the Jena Experiment. Similar data from other experiments (e.g. Main Experiment, Dominance Experiment; see details above), other years, or other methods quantifying related data might be available (doi:10.1594/PANGAEA.855002).
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | 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 | |||
| 3 | Height aboveground, maximum | Height abovegr max | m | |||
| 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 | Replicate | Repl | Speciefies if multiple samples per plot have been taken and are provided in the data file. | |||
| 8 | Treatment: mowing | T:mow | Detailed explanations of treatments are provided in the section "further details". | |||
| 9 | Treatment: weeding | T:weed | Detailed explanations of treatments are provided in the section "further details". | |||
| 10 | Treatment: weeding history | T:weed hist | Detailed explanations of treatments are provided in the section "further details". | |||
| 11 | Treatment: seed addition | T:seed add | Detailed explanations of treatments are provided in the section "further details". | |||
| 12 | Treatment: fertilizing | T:fert | Detailed explanations of treatments are provided in the section "further details". | |||
| 13 | Treatment: drought | T:drought | Detailed explanations of treatments are provided in the section "further details". | |||
| 14 | Treatment: aboveground: pesticide | T:abovegr pest | Detailed explanations of treatments are provided in the section "further details". | |||
| 15 | Treatment: below pesticide | T:below pest | Detailed explanations of treatments are provided in the section "further details". | |||
| 16 | Treatment: molluscide | T:mollus | Detailed explanations of treatments are provided in the section "further details". | |||
| 17 | Treatment: nematicide | T:nema | Detailed explanations of treatments are provided in the section "further details". | |||
| 18 | Treatment: eartworm exclosure | T:eartworm excl | Detailed explanations of treatments are provided in the section "further details". | |||
| 19 | Treatment: phytometers | T:phyto | Detailed explanations of treatments are provided in the section "further details". | |||
| 20 | Treatment: special | T:special | Detailed explanations of treatments are provided in the section "further details". | |||
| 21 | Sown plant community, regenerative height | Sown plant reg h | m | Measured on plot level | ||
| 22 | Sown plant community, vegetative height | Sown plant veg h | m | Measured on plot level |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
79212 data points
Download Data
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