general
id 14686
versionID 1.9.12
lineage
datasetid 0
version 1.0.0
title MinSoil 2011 - Soil Texture
language en
metadataCreator Ingo Schöning
originalDatasetManager Susan Trumbore
owners
owner1 Ingo Schöning
owner2 Emily Solly
owner3 Theresa Klötzing
owner4 Susan Trumbore
owner5 Marion Schrumpf
notification
downloadNotification designated manager
projectName Soil abiotic (core)
consortia None
designatedDatasetManager
designatedDatasetManagerName Ingo Schöning
institute Max-Planck-Institute for Biogeochemistry, Jena
address
street Hans Knöll Str. 10
zipCode 07745
city Jena
email Ingo.Schoening@bgc-jena.mpg.de
url
phone 03641576191
mobile 015120105521
fax

researchObjects
approxNumberOfPlots
noOfGP 300
noOfEP 300
noOfMIP 150
noOfVIP 57
habitats
grassland yes
forest yes
experimentalManipulation no
relativePositionToGround
aboveGround no
belowGround yes
repeatedMeasurement
timeBasedRepetition
numberOfRepetitions 0
plotBasedRepetition
numberOfSubPlots 0
taxa
taxon1 None
processesAndServices
processOrService1 Biogeochemical Cycle - Water
processOrService2 Biogeochemical Cycle - Carbon
processOrService3 Biogeochemical Cycle - Nitrogen
processOrService4 Biogeochemical Cycle - Other Nutrients
processOrService5 Productivity
processOrService6 Decomposition
processOrService7 Other
environmentalDescriptors
environmentalDescriptor1 Soil
bioticDataTypes
bioticDataType1 None

methodology
introduction The core project ‘Soil' provides essential information on soil properties and ecosystem functions across all 300 Experimental Plots (EPs) of the Biodiversity Exploratories. Soil texture is one of the most fundamental properties of a soil. It is a major control on the effective surface area, pore size distribution, water and nutrient holding capacity of a soil.
measurements
theory Soil texture focuses on the soil particles that are less than 2 mm in diameter. It indicates the relative content of sand (2-0.063 mm), silt (0.063-0.002 mm) and clay (<0.002 mm). Size separation of particles is based on sieving (particles >0.063 mm) and on the principle that a solution settles out at a rate that depends on the size of the particles. The larger the particle size, the faster particles settle. The settling rate is given by Stokes Law. Soil texture tends to be relatively stable over time since weathering only very slowly changes particle size distribution in soil.
type Texture analysis consists of three main steps: (i) distruction of soil organic matter with hydrogen peroxide, (ii) dispersion of soil aggregates into discrete units, and (iii) separation of soil particles of different size by sieving and sedimentation (DIN-ISO 11277).
equipment
instruments 0.63, 0,2, 0.063 mm sieves for isolation of sand fractions (Retsch, Haan, Germany)
Instrumentation for pipette method including Atterberg cylinders to separate silt and clay fractions
calibration Reference soil of VDLUFA/LUFA for quality control (LUFA, Speyer, Germany)
procedures In each of the 300 experimental plots of the biodiversity exploratories we collected 14 soil cores with a split tube sampler (diameter of 5 cm) along two 20 m transects in grasslands and 40 m transects in forests in May 2011. Organic layers in forests and aboveground plant parts in grasslands were removed before coring. We then prepared a composite sample from the 14 soil cores by mixing the upper 10 cm of the soil. A subsample of the composite sample was sieved to <2 mm, dried and subsequently used for soil texture analysis.

description
acronyms
acronymPair1
acronym1 C
meaning1 Clay
acronymPair2
acronym2 Si
meaning2 Silt
acronymPair3
acronym3 S
meaning3 Sand
keywords
keyword1 clay
keyword2 silt
keyword3 sand
keyword4 soil texture
keyword5 particle size distribution
keyword6 mineral soil
keyword7 Coordinated Soil Sampling 2011

time
when
format dd.MM.yy
startDate 01.05.11
endDate 15.05.11
dateEntry 2012-03-11
dateLastModified 2019-06-11

data
fileName 14686_110312_083203_Korngröße Hainich Grünland.xlsx; 14686_230412_035804_Korngröße Hainich Wald.xlsx; 14686_090512_105620_Korngröße_Alb_Wald.xlsx; 14686_160712_110003_Texture_Schorfheide_Forest.xlsx; 14686_081012_051225_Texture_Schorfheide_Grassland.xlsx; 14686_100113_051610_Texture_Alb_Grassland.xlsx; 14686_110113_095145_Texture_Alb_Grassland.xlsx; 14686_110113_095226_Texture_Schorfheide_Grassland.xlsx;
fileType structuredData
manipulations
errors
qualityLevel processed
dataStatus complete
location
exploratory
keyExplo asVariable
valueExplo Exploratory
plots
keyPlots asVariable
valuePlots EP_Plotid
srs
epsg -
coordinates
longitude
latitude
bbox
ulx
uly
lrx
lry
dataStructure
dataFormat
fileFormat Excel
delimiter Excel
decimalCharacter ,
quote
missingValues NA
NA
orientation columnwise
offset 0
header
variableNames 1
dataValues 2
units 0
annotation 0
metaInformation 0
relationKey
matrix
columnName
columnStartCell
rowName
rowStartCell
contentType
matrixUnit
values
variables
name typeOfVariable units description block
1 EP_Plotid string - 0
2 Plotid string - 0
3 Exploratory string - 0
4 Type string - 0
5 Clay realNumber g/kg soil <0.002 mm 0
6 Fine_Silt realNumber g/kg soil 0.002-0.0063 mm 0
7 Medium_Silt realNumber g/kg soil 0.0063-0.02 mm 0
8 Coarse_Silt realNumber g/kg soil 0.02-0.063 mm 0
9 Fine_Sand realNumber g/kg soil 0.063-0.2 mm 0
10 Medium_Sand realNumber g/kg soil 0.2-0.63 mm 0
11 Coarse_Sand realNumber g/kg soil 0.63-2 mm 0
blockNames
blockName1 Block0

references
database
papers
paper1
relatedDatasets
dataset1

comment
comment