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Fischer, Christine; Hildebrandt, Anke (2016): Soil porosity along a plant diversity gradient in the Jena Experiment (Main Experiment, 2013) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.865254, In: Fischer, Christine; Hildebrandt, Anke; Luo, Guangjuan; Meyer, Sebastian Tobias (2016): Collection of measurements on physical soil properties in plots of the Jena Experiment (time series since 2002) [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.865255

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Abstract:
Soil porosity is the fraction of total volume occupied by pores or voids measured at matric potential 0. To measure soil porosity, soil samples were taken from each plot using sample rings with an internal diameter of 57 mm and height of 40.5 mm (inner volume of Vs=100 cm**3). The samples were placed on a sand bed box with water level set to allow saturation of the samples with water. After 48 h the samples were weighed (ms), oven dried at 105 °C and weighed again to determine the dry weight (md). We calculated soil porosity (n [%]) using the density of water (pw=1 g cm**-3), n=100 * (mw-md) / (pw*Vs). To account for the spatial variation of soil properties, three replicates were taken per plot, approximately 2, 3 and 4 weeks after the flood that occurred at the field site during June 2013. Data are the average soil porosity values per plot.
All data where measured in 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 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.
Related to:
Fischer, Christine; Tischer, Jana; Roscher, Christiane; Eisenhauer, Nico; Ravenek, Janneke; Gleixner, Gerd; Attinger, Sabine; Jensen, Britta; de Kroon, Hans; Mommer, Liesje; Scheu, Stefan; Hildebrandt, Anke (2014): Plant species diversity affects infiltration capacity in an experimental grassland through changes in soil properties. Plant and Soil, 397(1-2), 1-16, https://doi.org/10.1007/s11104-014-2373-5
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
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 DEPTH, soil: 0.025 m * Maximum DEPTH, soil: 0.025 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 physical soil properties at the field site of the Jena Experiment. Data for other soil properties, 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.865255).
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Experimental plotExperimental plotDetailed explanations of plots and the plant diversity gradient are provided in the section "further details".
PorosityPoros% vol
Depth, soil, minimumDepth soil minm
Depth, soil, maximumDepth soil maxm
DEPTH, soilDepth soilmGeocode
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

Poros [% vol]

Depth soil min [m]

Depth soil max [m]

Depth soil [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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