Header logo

Title:
CSPs: Litter layer thickness, mass and C and N pools at the forest floor
Access rights:
Private
Usage rights:
No information available
Published:
No information available
Abstract:
Thickness and mass of the standing leaf litter layer was measured in all CSPs in spring 2009, summer 2009, autumn 2009 and winter 2010. This piece of work will contribute to calculate total carbon and nitrogen pool sizes of the broad-leaved forests stands in Gutianshan. Subsamples of the collected litter were analyzed for carbon and nitrogen and pool sizes for C and N were determined.
Design:
Litter layer refers to the surface layer on a forest floor that contains all dead, fresh or dry, and partially decomposed plant tissues above the organic (Oh) and mineral soil surface, including twigs up to 0.6 cm diameter". Thickness of the undisturbed litter layer was measured by a folding rule at 12 points distributed equally along the border of each CSP. To determine biomass, four sample cores were taken with a PVC tube (diameter 19 cm) in undisturbed litter patches in each CSP and pooled together. Litter thickness of each sample core was recorded and litter biomass was corrected using the mean of the 12 single measurements of leaf litter thickness . Litter samples were dried at 70 °C until constant weight and subsamples were analyzed for carbon and nitrogen. --- Litter from the four sample cores were pooled for weighing, total area of the four cores is 0.113411 m2 = (PI*0.095m*0.095m*4)
Spatial extent:
CSPs of the BEF China Experiment, Gutianshan Nature Reserve 29°08'-29°17'N 118°02'-118°11'E
Temporal extent:
2009, 2010
Taxonomic extent:
Litter
Measurement cirumstances:
No information available
Data analysis:
Thickness and mass of the standing leaf litter layer; carbon and nitrogen pool sizes, mind that Moisture of the leaf litter layer could influence the thickness of the leaf litter layer.

Filter:
Dataset column

Name:
CSP
Definition:
name of the CSP in the Nature Reserve BEF research plot nameReasearch plots of the Biodiversity - Ecosystem functioning experiment (BEF-China). There are three main sites for research plots in the BEF Experiment: Comparative Study Plots (CSP) in the Gutianshan Nature Reserve, having a size of 30x30m^2, measured on the ground.
Unit:
No information available
Datagroup:
BEF research plot name
Keywords:
CSP
Values:
CSP02
CSP05
CSP01
CSP04
CSP03
Contributors:
No information available

Dataset column

Name:
Age
Definition:
Age class of CSP; Successional age of a forest plot
Unit:
No information available
Datagroup:
Successional age of a forest plot
Keywords:
succession
Values:
middle
old
young
Contributors:
No information available

Dataset column

Name:
Season
Definition:
Season in which sample was taken , Spring2009 = March/April, Summer 2009 = July/August; Autumn 2009 = November; Winter 2010 = February
Unit:
No information available
Datagroup:
Season
Keywords:
season
Values:
Spr09
Win10
Aut09
Sum09
Contributors:
No information available

Dataset column

Name:
Thickness1_cm
Definition:
Mean thickness of standing leaf litter layer measured at 12 points, average value; mean thickness was calculated from 12 single measurements along the outer border in undisturbated litter patches
Unit:
centimeter
Datagroup:
Litter thickness
Keywords:
litter, litter thickness
Values:
2.4166666666666665
2.1666666666666665
1.8333333333333333
2.3333333333333335
2.25
Contributors:
No information available

Dataset column

Name:
Thickness2_cm
Definition:
Mean thickness of standing leaf litter layer measured for the four litter cores, average value; Calculated mean thickness for the sampling cores (n =4)
Unit:
centimeter
Datagroup:
Litter thickness
Keywords:
litter
Values:
1.5
2.375
2.25
2.125
2.5
Contributors:
No information available

Dataset column

Name:
BM_4cores_g
Definition:
Dry weight of litter biomass pooled from 4 sampling cores in each CSP (total area of the 4 cores = 0.113411 m2) Litter from the four sample cores were pooled for weighing, total area of the four cores is 0.113411 m2 = (PI*0.095m*0.095m*4)
Unit:
gram
Datagroup:
Litter Biomass
Keywords:
biomass, litter, litter biomass
Values:
101.625
101.025
103.4
103.125
102.01
Contributors:
No information available

Dataset column

Name:
Litter_kg.ha
Definition:
calculated litter mass (kg/ha) on the basis of the measured litter mass determined for the sample cores. Biomass data of the sample cores were corrected for litter thickness measurements (n=12; instead n=4); Calculating litter mass per hectar (expressed per area on the ground; not converted to horizontal projection area); ;
Unit:
kilogram per hectare
Datagroup:
Litter Biomass
Keywords:
biomass, litter, litter biomass
Values:
10210.857009227537
10548.920619372338
10048.841142455474
10023.01364065214
10046.031335321219
Contributors:
No information available

Dataset column

Name:
Litter_Mg.ha
Definition:
calculated litter mass (mg/ha) on the basis of the measured litter mass determined for the sample cores. Biomass data of the sample cores were corrected for litter thickness measurements (n=12; instead n=4); Calculating litter mass per hectar (expressed per area on the ground; not converted to horizontal projection area); ;
Unit:
megagram per hectare
Datagroup:
Litter Biomass
Keywords:
No information available
Values:
10.02301364065214
10.210857009227537
10.548920619372339
10.048841142455474
10.046031335321219
Contributors:
No information available

Dataset column

Name:
Conc_N
Definition:
Nitrogen concentration , Subsample of collected litter was analyzed for nitrogen, Elemental analyzer; Nitrogen; Elemental analyzer
Unit:
percent
Datagroup:
Nitrogen
Keywords:
nitrogen
Values:
0.74
0.8
0.71
0.79
0.81
Contributors:
No information available

Dataset column

Name:
Con_C
Definition:
Carbon concentration, Subsample of collected litter was analyzed, Elemental analyzer; ; Elemental analyzer
Unit:
percent
Datagroup:
Carbon
Keywords:
carbon
Values:
42.42
40.98
41.54
42.97
43.2
Contributors:
No information available

Dataset column

Name:
CN_ratio
Definition:
C/N ratio
Unit:
No information available
Datagroup:
Carbon Nitrogen ratio
Keywords:
C/N ratio
Values:
27.67484662576687
28.169696969696968
30.470588235294116
29.167701863354036
29.64596273291925
Contributors:
No information available

Dataset column

Name:
N_kg.ha
Definition:
Nitrogen content, , Subsample of collected litter was analyzed, Elemental analyzer, N content (kg/ha) =( Conc_N/100) x Litter_kg.ha; Nitrogen; Elemental analyzer
Unit:
kg/ha
Datagroup:
Nitrogen
Keywords:
nitrogen
Values:
101.22218126989448
101.89559044608379
101.26001886942184
103.79619939186473
102.10439820442376
Contributors:
No information available

Dataset column

Name:
C_kg.ha
Definition:
Carbon content, , Subsample of collected litter was analyzed, Elemental analyzer; C content (kg/ha) =( Conc_C/100) x Litter_kg.ha; ; Elemental analyzer
Unit:
kg/ha
Datagroup:
Carbon
Keywords:
carbon
Values:
2297.070169560272
2082.1852014562337
2338.695364647169
2044.4880000302317
2353.676874377265
Contributors:
No information available

No information available


No information available
No information avialable

Filter:
5 scherer lorenzen medium

Michael
Scherer-Lorenzen

Owner of:
39 Datasets

Involved in:
3 Projects

E-Mail Profile
4 trogisch medium

Stefan
Trogisch

Owner of:
14 Datasets

Involved in:
3 Projects

E-Mail Profile
No information available

No information available
No information available