Title:
Exploratories microbial data 2012
Access rights:
Free within projects
Usage rights:
On request and only members of the project. Note that labile carbon and nitrogen, pH and potential nitrification were measured on own funds. The other variables were aquired within the project.
Published:
No information available
Abstract:
The biogeochemical cycling in forest ecosystems is highly dependent on the interactions between plants and soil. Tree species affect element cycling through deposition in throughfall, litterfall, microbial activities in soil and rhizosphere processes. Tree species diversification has been suggested for maintaining forest ecosystem services and combining provisioning and supporting services with multifunctional and sustainable forestry. However, the understanding of the role of biodiversity in forests is unclear, in particular concerning the microbial diversity and activity in soils. This file contains data of bacterial metabolic diversity, microbial biomass, pH, labile carbon and nitrogen, and potential nitrification (upper layers only) in organic and upper mineral soil horizons sampled in 2012 in the 209 plots of the Exploratory Platform of the FunDivEUROPE project (http://www.fundiveurope.eu/). This Exploratory Platform is a network of comparative plots of 1-5 tree species established in existing mature forest in 6 countries. These six focal regions represent important European forest types along the gradient from boreal forest to Mediterranean forest.
Design:
Samples were taken in the 209 plots (30x30 m) the Exploratory Platform of FunDivEUROPE. A soil sample was taken in 5 (corners and middle subplot) of the 9 10x10m subplots and mixed to obtain one representative composite sample from each plot.
Organic (if present) and mineral (5 cm) soil horizons were samples separately. Soils were sieved fresh (4mm), stored at 4°C and analysed within 2 weeks.
Spatial extent:
Exploratories FUnDivEurope: Finland, Germany, Italy, Poland, Spain, Romania
Temporal extent:
Soil sampling dates: Finland:18/06/2012-21/06/2012; Germany: 27/04/2012-29/04/2012; Italy: 26/03/2012-28/03/2012; Poland: 10/09/2012-12/09/2012; Spain: 12/11/2012-14/11/2012; Romania: 8/10/2012-10/10/2012
Taxonomic extent:
No information available
Measurement cirumstances:
No information available
Data analysis:
Response variables:
NOTE: in this dataset, Cmic has been calculated with a kEC=0.35, but we now consider kEC=0.45 more adequate
Microbial biomass carbon (Cmic) and Nitrogen (Nmic)
Ctot .
Water-content ot.
qmicot.
pHH2O pHKCl ot.
NitPot ot.
NtotCW NtotHW
CCW ClabileCtot.
Planned data analyses: mixed models, strucutural equation modelling
Filter:
Dataset column
Name:
Sample
Definition:
sample number
Unit:
No information available
Datagroup:
Helper
Keywords:
No information available
Values:
10A |
11A |
12A |
11B |
10B |
Contributors:
No information available
Dataset column
Name:
richness
Definition:
tree species richness
Unit:
No information available
Datagroup:
Species richness
Keywords:
No information available
Values:
4 |
2 |
5 |
3 |
1 |
Contributors:
No information available
Dataset column
Name:
season
Definition:
sampling season (spring-autumn)
Unit:
No information available
Datagroup:
Samping season
Keywords:
No information available
Values:
spring |
autumn |
Contributors:
No information available
Dataset column
Name:
PlotID
Definition:
fundiv plot identity
Unit:
No information available
Datagroup:
Exploratory plot id
Keywords:
No information available
Values:
FIN04 |
FIN03 |
FIN01 |
FIN05 |
FIN02 |
Contributors:
No information available
Dataset column
Name:
horizon
Definition:
sampling horizon (organic-mineral)
Unit:
No information available
Datagroup:
Soil horizon
Keywords:
No information available
Values:
Organic |
Mineral |
Contributors:
No information available
Dataset column
Name:
DW
Definition:
coefficient to transform fresh weight into dry weight
Unit:
No information available
Datagroup:
Soil variable
Keywords:
No information available
Values:
0.24040913 |
0.223181918 |
0.23256979 |
0.24 |
0.260981191 |
Contributors:
No information available
Dataset column
Name:
LOI
Definition:
loss on ignition
Unit:
%
Datagroup:
Soil variable
Keywords:
No information available
Values:
0.69056172 |
0.777003143 |
0.717922849 |
0.574481802 |
0.517466697 |
Contributors:
No information available
Dataset column
Name:
Cmic
Definition:
microbial biomass carbon
Unit:
mg kg-1
Datagroup:
Microbial biomass
Keywords:
C
Values:
10178.58897 |
10139.43136 |
1004.837251 |
10201.37261 |
10213.40503 |
Contributors:
No information available
Dataset column
Name:
Nmic
Definition:
microbial biomass nitrogen
Unit:
mg kg-1
Datagroup:
Microbial biomass
Keywords:
N
Values:
1005.354053 |
100.5504063 |
0.723912975 |
1001.138513 |
1014.891956 |
Contributors:
No information available
Dataset column
Name:
Ctot
Definition:
total organic carbon content
Unit:
%
Datagroup:
Microbial biomass
Keywords:
C
Values:
0.401489372 |
0.451746013 |
0.417397005 |
0.334001048 |
0.300852731 |
Contributors:
No information available
Dataset column
Name:
Water-content
Definition:
gravimetric water content
Unit:
%
Datagroup:
Soil variable
Keywords:
water
Values:
10.74453592 |
10.71383369 |
10.43877352 |
10.05489396 |
10.32763533 |
Contributors:
No information available
Dataset column
Name:
qmic
Definition:
microbial quotient
Unit:
mg Cmic.g-1 Ctot
Datagroup:
Microbial biomass
Keywords:
C
Values:
10.6663036 |
10.10415184 |
10.18348237 |
10.21152904 |
10.79086254 |
Contributors:
No information available
Dataset column
Name:
pHH2O
Definition:
pH of soil in water
Unit:
No information available
Datagroup:
Soil variable
Keywords:
pH
Values:
3.98 |
4.13 |
3.83 |
3.66 |
4 |
Contributors:
No information available
Dataset column
Name:
pHKCl
Definition:
pH of soil in KCl solution
Unit:
No information available
Datagroup:
Soil variable
Keywords:
pH
Values:
2.98 |
2.86 |
2.76 |
3.05 |
2.9 |
Contributors:
No information available
Dataset column
Name:
Diversity
Definition:
indicator of metabolic (functional) diversity of bacteria
Unit:
%
Datagroup:
Diversity measure
Keywords:
diversity
Values:
0 |
0.032258065 |
0.12903226 |
0.096774194 |
0.129032258 |
Contributors:
No information available
Dataset column
Name:
NitPot
Definition:
potential nitrification
Unit:
mg N-NO3 . g-1 dry soil . h-1
Datagroup:
Soil variable
Keywords:
nitrification
Values:
0.01 |
0.004 |
0.003 |
0.0097 |
0 |
Contributors:
No information available
Dataset column
Name:
NtotCW
Definition:
water soluble nitrogen (cold water nitrogen)
Unit:
µg.g-1
Datagroup:
Soil variable
Keywords:
N
Values:
10.08322746 |
10.17551049 |
100.8679355 |
10.22288127 |
100.3137391 |
Contributors:
No information available
Dataset column
Name:
NtotHW
Definition:
hot water nitrogen
Unit:
µg.g-1
Datagroup:
Soil variable
Keywords:
N
Values:
101.6964246 |
1004.241814 |
1015.86289 |
1030.826506 |
1016.028906 |
Contributors:
No information available
Dataset column
Name:
CCW
Definition:
water soluble carbon (cold water carbon)
Unit:
mg.g-1
Datagroup:
Soil variable
Keywords:
C
Values:
0.050482852 |
0.046344758 |
0.050736317 |
0.037542916 |
0.047913339 |
Contributors:
No information available
Dataset column
Name:
Clabile
Definition:
hot water carbon (labile carbon)
Unit:
mg.g-1
Datagroup:
Soil variable
Keywords:
C
Values:
0.069676109 |
0.05777791 |
0.065257288 |
0.067519415 |
0.071673193 |
Contributors:
No information available
No information available
No information available
No information avialable
Filter:
No information available
No information available
No information available
No information available
No information available