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Ebeling, Anne; Eisenhauer, Nico (2016): Duration of a flood along a plant diversity gradient in the Jena Experiment (Main Experiment, June 2013) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.865132, In: Ebeling, Anne; Fischer, Christine; Hildebrandt, Anke; Eisenhauer, Nico; Weisser, Wolfgang W; Luo, Guangjuan; Meyer, Sebastian Tobias (2016): Collection of measurements on environmental conditions in plots of the Jena Experiment (time series since 2002) [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.865134

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Abstract:
The Jena Biodiversity Experiment is located on a Central European mesophilic floodplain on the banks of the Saale River (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 in the plots to create a gradient of plant species richness (1, 2, 4, 8, 16 and 60 species) and functional richness (1, 2, 3, or 4 functional groups). Plots were maintained by bi-annual weeding and mowing.
In June 2013, a natural 200-year flood event occurred at the field site. Rainfall in May 2013 in Jena was ~150mm, constituting >25% of annual precipitation at the site that year. Overall the flood affected the entire Elbe River Basin and much of Europe and was one of the largest natural flooding events in the past two centuries. The flood lasted for a total of 24 days at the site (30 May–24 June) and led to anaerobic soil conditions. Due to small topographical differences among the plots in the experiment (<1m), there was variation in the duration of flooding and the proportion of each plot that was flooded. This variation was well-distributed across the diversity gradient. To assess the importance of flood severity, the proportion of each plot that was flooded was estimated by eye (using five classes: 0 completely dry, 0.25 up to a quarter under water, 0.5 half, 0.75 up to three quarters under water, and 1 more than three quarters under water up to completely submerged). These values, for each of the 24 days that the flood lasted, were summed up to calculate a flooding index. The resulting flooding index is given for each plot of the Main Experiment.
Related to:
Hertzog, Lionel R; Ebeling, Anne; Meyer, Sebastian Tobias; Eisenhauer, Nico; Fischer, Christine; Hildebrandt, Anke; Wagg, Cameron; Weisser, Wolfgang W (2016): High Survival of Lasius niger during Summer Flooding in a European Grassland. PLoS ONE, 11(11), e0152777, https://doi.org/10.1371/journal.pone.0152777
Wright, Alexandra J; Ebeling, Anne; de Kroon, Hans; Roscher, Christiane; Weigelt, Alexandra; Buchmann, Nina; Buchmann, Tina; Fischer, Christine; Hacker, Peter W; Hildebrandt, Anke; Leimer, Sophia; Mommer, Liesje; Oelmann, Yvonne; Scheu, Stefan; Steinauer, Katja; Strecker, Tanja; Weisser, Wolfgang W; Wilcke, Wolfgang; Eisenhauer, Nico (2015): Flooding disturbances increase resource availability and productivity but reduce stability in diverse plant communities. Nature Communications, 6, 6092, https://doi.org/10.1038/ncomms7092
Project(s):
Coverage:
Latitude: 50.946100 * Longitude: 11.611300
Date/Time Start: 2013-01-01T00:00:00 * Date/Time End: 2013-12-31T00:00:00
Minimum HEIGHT above ground: 0.5 m * Maximum HEIGHT above ground: 0.5 m
Event(s):
JenExp_2013 (Jena Experiment 2013) * Latitude: 50.946100 * Longitude: 11.611300 * Date/Time Start: 2013-01-01T00:00:00 * Date/Time End: 2013-12-31T00:00:00 * Location: Thuringia, Germany * Method/Device: Experiment (EXP)
Comment:
This dataset is part of a collection of measurements on environmental conditions at the field site of the Jena Experiment. Data for other abiotic measurements, 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.865134).
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Experimental plotExperimental plotDetailed explanations of plots and the plant diversity gradient are provided in the section "further details".
FloodFloodday
Height aboveground, minimumHeight abovegr minmSoil surface
Height aboveground, maximumHeight abovegr maxmrough approximation of maximum vegetation height
HEIGHT above groundHeightmGeocode – Average of min and max value
Date/time startDate/time startof sampling campaign
Date/time endDate/time endof sampling campaign
Treatment: mowingT:mowDetailed explanations of treatments are provided in the section "further details".
Treatment: weedingT:weedDetailed explanations of treatments are provided in the section "further details".
10 Treatment: weeding historyT:weed histDetailed explanations of treatments are provided in the section "further details".
11 Treatment: seed additionT:seed addDetailed explanations of treatments are provided in the section "further details".
12 Treatment: fertilizingT:fertDetailed explanations of treatments are provided in the section "further details".
13 Treatment: droughtT:droughtDetailed explanations of treatments are provided in the section "further details".
14 Treatment: aboveground: pesticideT:abovegr pestDetailed explanations of treatments are provided in the section "further details".
15 Treatment: below pesticideT:below pestDetailed explanations of treatments are provided in the section "further details".
16 Treatment: molluscideT:mollusDetailed explanations of treatments are provided in the section "further details".
17 Treatment: nematicideT:nemaDetailed explanations of treatments are provided in the section "further details".
18 Treatment: eartworm exclosureT:eartworm exclDetailed explanations of treatments are provided in the section "further details".
19 Treatment: phytometersT:phytoDetailed explanations of treatments are provided in the section "further details".
20 Treatment: specialT:specialDetailed explanations of treatments are provided in the section "further details".
Size:
1520 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


Experimental plot

Flood [day]

Height abovegr min [m]

Height abovegr max [m]

Height [m]

Date/time start

Date/time end

T:mow

T:weed
10 
T:weed hist
11 
T:seed add
12 
T:fert
13 
T:drought
14 
T:abovegr pest
15 
T:below pest
16 
T:mollus
17 
T:nema
18 
T:eartworm excl
19 
T:phyto
20 
T:special
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