Litter samples - Germany

Usage Rights

This data is Free for members.

Dataset Abstract

The main objectives of this task are to quantify litterfall production and its composition and chemical content over time, and to relate this information to tree diversity and environmental gradients across sites.
By relating litter production data with data on aboveground stand-level productivity and root biomass production, this task will also test the assumption that litter production is a good proxy for productivity.Contains dry weight data of different litter fractions sorted by: leave litter per plot per species (devided in target species for the respective plot and non-targed species), woody material, reproductive material, animals and undefinable rest.

Dataset Design

See sampling protocol: “Litter production and element fluxes” and deliverable 3.5 "Litter fluxes" for details.

Spatial Extent

Germany, Hainich

Temporal Extent

November 2012 – December 2013.

Taxonomic Extent

Fagus sylvatica, Acer pseudoplatanus, Fraxinus excelsior, Quercus spec. (either Quercus petraea or Quercus robur), Picea abies

Measurement Circumstances

Due to snow fall or other unfavourable conditions, litter could not be collected on a two-weekly basis as described in the protocol.

Data columns available in the raw data part of this dataset

PlotID
PlotID
Data group: Exploratory plot id
Values
GER03
GER05
GER02
GER01
GER04
PlotID_old
old ID of German Plots
Data group: Original plot id
Values
1086
1028
1147
1041
1014
Diversity_Level
Tree Diversity_Level
Data group: Species richness
Values
1
3
4
2
Sampling Date
date of sampling campaign
Data group: Survey date
Values
2012-11-27
2013-12-10
NA
2013-12-18
Sampling period
period of sampling campaign
Data group: Survey date
Values
December
November
June
Species
Species
Data group: Tree species
Values
Fagus sylvatica
Acer pseudoplatanus
Notspecified
Fraxinus excelsior
Picea abies
SpeciesCode
SpeciesCode
Data group: Tree species code
Values
ACEPSE
FRAEXC
Notspecified
PICABI
FAGSYL
Litter_Type
Litter_Type
Data group: Litter type
Values
woody material
Unkraut
Reproduction_Material
leaf_litter
Rest
weight_air dry
weight of litter fraction air dried
Unit: gramm
Data group: Litter biomass
Keywords: process, litter
Values
0
0.09907396538744641
0.15
0.1
0.14
weight_65 dry
weight of litter after conversion to 65 ° equivalent
Unit: gramm
Data group: Litter biomass
Keywords: process, litter
Values
0
0.09
0.09390427973430603
0.14085641960145903
0.13146599162802844
* Berthold, F., Berger, S. also contributed to this column.
ConversionFactor to 65
Factor = (weight_air dry/weight_65° dry) calculated from subsample that was dried at 65°
Data group: Litter biomass
Keywords: process, litter
Values
0.9280363
0.908412211503183
0.9171352964553925
0.8343073
0.9361007
CN_Analysis
specifies if sample was taken for further chemical analysis
Data group: Helper
Values
no
NA
yes
%N
percent of nitrogen
Unit: percent
Data group: element content
Values
0.47439
0.5970879197120667
0.714
0.6803616881370544
0.5960869193077087
%C
percent of carbon
Unit: percent
Data group: element content
Values
44.25843811035156
44.16530227661133
45.09995651245117
44.576988220214844
45.12226867675781
Ca (µg/g)
Calcium content
Unit: µgPerg
Data group: element content
Values
11.898
11.963
12.47
12.628
12.349
outlier N
if yes N values is an outlier
Data group: Helper
Values
yes
NA
outlier C
if yes C values is an outlier
Data group: Helper
Values
yes
NA
outlier Ca
if yes Ca values is an outlier
Data group: Helper
Values
yes
NA
air_dried_or_65
specifies if sample was air dried (or dried at max 38°C) or dried in oven at 65°C
Data group: Helper
Values
NA
65°
air dried
total_part
indicates if part of the sample or the total sample was dried at 65°, in cases were this is applicable
Data group: Helper
Values
NA
part
total
Comments
Comments
Data group: Helper
Values
46.23g air dry weight Acer, 19.87g air dry weight Picea abies
2.61g dry weight (65°) Acer pseudoplatanus, 6.17g dry weight (65°) Quercus
1.14 g air dry weight Fraxinus
47.28 g air dry weight Fraxinus
18.47g dry weight (65°) Acer, 2.44 g dry weight (65°) Picea abies