Citation:

1365-2435.12948

Name: Specific leaf area and leaf dry matter content in the Jena-Ecotron experiment
Published: 2017-07-11
License: https://creativecommons.org/licenses/by/3.0/
Keywords: Jena-Ecotron Experiment

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Abstract:

This dataset contains specific leaf area and leaf dry matter content in the Jena-Ecotron Experiment in 2012. This experiment was conducted in the Montpellier European Ecotron (CNRS, France), an advanced controlled environment facility for ecosystem research, and aimed at understanding the impact of plant species richness (4 vs. 16 species) for ecosystem carbon and water fluxes.

The soil monoliths used in this experiment contained plant communities originating from the long- term Jena Experiment (50°57.1' N, 11°37.5' E, 130 m above sea level; mean annual temperature 9.3°C, mean annual precipitation 587 mm) established in May 2002. Twelve plots were selected for the Jena-Ecotron study according to the following criteria: (1) the four functional groups grasses, legumes, small and tall herbs were present, (2) realized species numbers were close to sown species richness, and (3) plots were equally distributed across the experimental field site to account for different soil textures. Large monoliths (2 m² surface area, diameter of 1.6 m, 2 m depth with a weight of 7 to 8 tons) including intact soil and vegetation were excavated in December 2011 and placed in lysimeters. In March 2012, before the start of the vegetation growth, the lysimeters were transported and installed in the Macrocosms platform of the Montpellier European Ecotron.

To assess specific leaf area and leaf dry matter content, bulk samples of fully expanded leaves (1 to 7 leaves per plot and species) of the upper shoot part of all available plant species were collected during three days of the Ecotron campaign 2012 (combined with the measurements of stomatal conductance and leaf greenness). Bulk samples were put into moist paper in sealed plastic bags and stored in a cool box (refrigerator respectively) until sample processing in the laboratory. In the laboratory leaves were dried with tissue paper to remove any surface water and weighed immediately to determine their water-saturated fresh weight. The number of leaves per bulk sample was counted and leaf area was determined with a leaf area meter (LI-3000A, Licor, USA). Samples were overn-dried (70°C, 48h) and there dry mass was measured. Leaves of forb species were measured including petioles and rachis; in Galium mollugo a complete whirl was considered as a leaf. Leaf blades were measured as "leaves" in grass species., Instruments: LI-3000A, Licor, USA. Leaf dry matter content (= dry mass per unit fresh mass, LDMC; mg g-1) and specific leaf area (= leaf area per unit dry mass, SLA; mm2 mg-1) were calculated from these samples. Leaf samples were milled to a fine powder and analysed with an elemental analyzer (Flash EA 1112, Thermo Italy, Rhodano, Italy) to obtain leaf nitrogen (Nleaf; %) and carbon (Cleaf; %) concentrations.

Keyword(s):

Jena-Ecotron Experiment

Related to:

Milcu, Alexandru; Eugster, Werner; Bachmann, Dörte; Guderle, Marcus; Roscher, Christiane; Gockele, Annette; Landais, Damien; Ravel, Olivier; Gessler, Arthur; Lange, Markus; Ebeling, Anne; Weisser, Wolfgang W; Roy, Jacques; Hildebrandt, Anke; Buchmann, Nina (2016): Plant functional diversity increases grassland productivity-related water vapor fluxes: an Ecotron and modeling approach. Ecology, 97(8), 2044-2054, https://doi.org/10.1890/15-1110.1

Milcu, Alexandru; Roscher, Christiane; Gessler, Arthur; Bachmann, Dörte; Gockele, Annette; Guderle, Marcus; Landais, Damien; Piel, Clement; Escpape, Christophe; Devidal, Sébastien; Ravel, Olivier; Buchmann, Nina; Gleixner, Gerd; Hildebrandt, Anke; Roy, Jacques (2014): Functional diversity of leaf nitrogen concentrations drives grassland carbon fluxes. Ecology Letters, 17(4), 435-444, https://doi.org/10.1111/ele.12243

Further details:

Plot information of the Jena Main Experiment

Treatment description

Project(s):

The Jena Experiment (JenExp)

Coverage:

Latitude: 50.946100 * Longitude: 11.611300

Date/Time Start: 2012-01-01T00:00:00 * Date/Time End: 2012-12-31T00:00:00

Minimum HEIGHT above ground: 0.5 m * Maximum HEIGHT above ground: 0.5 m

Event(s):

JenExp_2012 (Jena Experiment 2012) * Latitude: 50.946100 * Longitude: 11.611300 * Date/Time Start: 2012-01-01T00:00:00 * Date/Time End: 2012-12-31T00:00:00 * Location: Thuringia, Germany * Method/Device: Experiment (EXP)

Comment:

There are two types of missing values contained in datasets from the Jena Experiment. Empty cells represent missing values that result from the design of the experiment. Empty cells result when the respective value does not occur in the design 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 in the respective plot. Missing values that resulted from methodological problems, sampling errors, or lost samples/data are marked with "-9999".

This dataset is part of a collection of measurements of the Jena-Ecotron Experiment, which was part of the Jena Experiment.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	Experimental plot	Experimental plot		Guderle, Marcus	Detailed explanations of plots and the plant diversity gradient are provided in the section further details.
2	Height aboveground, minimum	Height abovegr min	m	Guderle, Marcus	Soil surface
3	Height aboveground, maximum	Height abovegr max	m	Guderle, Marcus	rough approximation of max plant height
4	HEIGHT above ground	Height	m	Guderle, Marcus	Geocode – Average of min and max value
5	Date/time start	Date/time start		Guderle, Marcus	of sampling campaign
6	Date/time end	Date/time end		Guderle, Marcus	of sampling campaign
7	Treatment: mowing	T:mow		Guderle, Marcus	Speciefies if multiple samples per plot have been taken and are provided in the data file.
8	Treatment: weeding	T:weed		Guderle, Marcus	Detailed explanations of plots and the plant diversity gradient are provided in the section further details.
9	Treatment: weeding history	T:weed hist		Guderle, Marcus	Detailed explanations of plots and the plant diversity gradient are provided in the section further details.
10	Treatment: seed addition	T:seed add		Guderle, Marcus	Detailed explanations of plots and the plant diversity gradient are provided in the section further details.
11	Treatment: fertilizing	T:fert		Guderle, Marcus	Detailed explanations of plots and the plant diversity gradient are provided in the section further details.
12	Treatment: drought	T:drought		Guderle, Marcus	Detailed explanations of plots and the plant diversity gradient are provided in the section further details.
13	Treatment: aboveground: pesticide	T:abovegr pest		Guderle, Marcus	Detailed explanations of plots and the plant diversity gradient are provided in the section further details.
14	Treatment: below pesticide	T:below pest		Guderle, Marcus	Detailed explanations of plots and the plant diversity gradient are provided in the section further details.
15	Treatment: molluscide	T:mollus		Guderle, Marcus	Detailed explanations of plots and the plant diversity gradient are provided in the section further details.
16	Treatment: nematicide	T:nema		Guderle, Marcus	Detailed explanations of plots and the plant diversity gradient are provided in the section further details.
17	Treatment: eartworm exclosure	T:eartworm excl		Guderle, Marcus	Detailed explanations of plots and the plant diversity gradient are provided in the section further details.
18	Treatment: phytometers	T:phyto		Guderle, Marcus	Detailed explanations of plots and the plant diversity gradient are provided in the section further details.
19	Treatment: special	T:special		Guderle, Marcus	Detailed explanations of plots and the plant diversity gradient are provided in the section further details.
20	Species	Species		Guderle, Marcus
21	Leaf, fresh mass	Leaf fm	g	Guderle, Marcus	Measured on species level
22	Number of leaves	Leaves	#	Guderle, Marcus	Measured on species level
23	Leaf, dry mass	Leaf dm	g	Guderle, Marcus	Measured on species level
24	Leaf area, specific, per mass dry weight	LA spec DW	mm²/mg	Guderle, Marcus	Measured on species level
25	Leaf, dry matter content	Leaf d mat cont	mg/g	Guderle, Marcus	Measured on species level
26	Carbon, leaf	C leaf	%	Guderle, Marcus	Measured on species level
27	Nitrogen, leaf	N leaf	%	Guderle, Marcus	Measured on species level

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

2750 data points

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