Litter samples - Finland

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: leaf 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

Finland, North Karelia

Temporal Extent

This data file includes the litter samples collected from September ´12 till August 2013.

Taxonomic Extent

Betula spec, Picea abies, Pinus sylvestris

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
FIN05
FIN04
FIN01
FIN02
FIN03
Diversity_Level
Tree Diversity_Level
Data group: Species richness
Values
3
2
1
Sampling Date
date of sampling campaign
Data group: Survey date
Values
2012-09-27
2012-09-26
2012-09-24
2012-09-28
2012-09-25
Sampling period
period of sampling campaign
Data group: Survey date
Values
August
October
September ´12
May
Species
Species
Data group: Tree species
Values
Notspecified
Betula
Picea abies
Pinus sylvestris
SpeciesCode
SpeciesCode
Data group: Tree species code
Values
PICABI
PINSYL
BETSPEC
Notspecified
Litter_Type
Litter_Type
Data group: Litter type
Values
woody material
Rest
Reproduction_Material
leaf_litter
Unkraut
weight_air dry
weight of litter fraction air dried
Unit: gramm
Data group: Biomass
Keywords: process, litter
Values
0.01
0.09
0.06
0
0.08
* Domisch, T. also contributed to this column.
weight_65 dry
weight of litter after conversion to 65° equivalent
Unit: gramm
Data group: Biomass
Keywords: process, litter
Values
0.00900574638916463
0.00807466720678901
0
0.00769209152204265
0.00877474386396752
* Domisch, T. also contributed to this column.
Conversion_Factor
Conversion_Factor
Data group: Helper
Values
0.877474386396752
0.769209152204265
0.900574638916463
0.807466720678901
0.9197526
CN_Analysis
specifies if sample was taken for further chemical analysis
Data group: Helper
Values
no
yes
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
air_dried
65
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
total
part
%N
percent of nitrogen
Unit: percent
Data group: element content
Values
0.328777551651001
0.32174
0.25269
0.311889767646789
0.30449
%C
percent of carbon
Unit: percent
Data group: element content
Values
48.0115699768066
48.091
48.304
48.36
48.612
Ca (µg/g)
calcium content
Unit: µgPerg
Data group: element content
Values
10.636770244821093
10.449946983184967
10.147
10.326
10.059
outlier N
if yes N value is an outlier
Data group: Helper
Values
yes
NA
outlier C
if yes C value is an outlier
Data group: Helper
Values
NA
yes
outlier Ca
if yes Ca value is an outlier
Data group: Helper
Values
NA
yes
Comments
Comments
Data group: Helper
Values
54.32 from that is Betula
Betula only
80.26 air dried weight is Betula
Teilprbe für CN entnommen
2.49 air dried Betula, rest other