Litter samples - Spain

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

Spain, Alto Tajo

Temporal Extent

October 2012 – September 2013

Taxonomic Extent

Pinus sylvestris, Pinus nigra, Quercus faginea, Quercus ilex

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
SPA01
SPA02
SPA03
SPA05
SPA04
PlotID_old
old ID of Spanish Plots
Data group: Original plot id
Values
SP079_OLD
SP058_OLD
SP076_OLD
SP075_OLD
SP077_OLD
Diversity_Level
Tree Diversity_Level
Data group: Species richness
Values
2
1
3
4
Sampling Date
date of sampling campaign
Data group: Survey date
Values
2012-10-06
2012-10-07
2012-10-05
2012-10-08
2012-10-04
Sampling period
period of sampling campaign
Data group: Survey date
Values
August
Juli
April_May
December
Februar
Species
Species
Data group: Tree species
Values
Quercus ilex
Quercus faginea
Pinus sylvestris
Notspecified
Pinus nigra
SpeciesCode
SpeciesCode
Data group: Tree species code
Values
QUEFAG
Notspecified
PINNIG
QUEILE
PINSYL
Litter_Type
Litter_Type
Data group: Litter type
Values
woody material
leaf_litter
Rest
Reproduction_Material
Unkraut
weight_air dry
weight of litter fraction air dried; Source: These persons could not be matched within the portal: Ines Carrascon Iglesias, Janine Heitzmann, Sandra König, Vanessa Denß, Christian Witt, Daniel Dann, Friederike Steck, Carola Sagewitz
Unit: gramm
Data group: Biomass
Keywords: process, litter
Values
0.0108734347418853
0.010927915535081
0.0109562493953519
0
0.01
weight_65 dry
weight of litter after conversion to 65° equivalent; Source: These persons could not be matched within the portal: Ines Carrascon Iglesias, Janine Heitzmann, Sandra König, Vanessa Denß, Christian Witt, Daniel Dann, Friederike Steck, Carola Sagewitz
Unit: gramm
Data group: Biomass
Keywords: process, litter
Values
0.009231579
0.009196726
0.009127211
0.009150876
0
ConversionFactor to 65
Factor = (weight_air dry/weight_65° dry) calculated from subsample that was dried at 65°
Data group: Biomass
Keywords: process, litter
Values
0.9127211
0.91
0.9196726
0.9231579
0.9150876
CN_Analysis
specifies if sample was taken for further chemical analysis
Data group: Helper
Values
no
yes
No
%N
percent of nitrogen
Unit: percent
Data group: element content
Values
0.3406
0.35464
0.29545
0.28015759587287903
0.3137568533420563
%C
percent of carbon
Unit: percent
Data group: element content
Values
46.904327392578125
46.795
46.877
47.173
46.677
Ca (µg/g)
Calcium content
Unit: µgPerg
Data group: element content
Values
10.482
10.143
10.092
10.353
10.332
outlier N
if yes N values is an outlier
Data group: Helper
Values
NA
yes
outlier C
if yes C values is an outlier
Data group: Helper
Values
NA
outlier Ca
if yes Ca values is an outlier
Data group: Helper
Values
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
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
NA
Comments
Comments
Data group: Helper
Values
0.04g (air dried) QUEFAG
0.21g (air dried) QUEFAG
0.01g (air dried) QUEFAG
0.25g (air dried) QUEFAG
0.1g (air dried) QUEFAG