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Effect of substituting urea with grain-legume fixed N fertiliser on CO2 emissions, and of raising pH on N2O emissions. Wongan Hills, Western Australia, 2009-2011 [Theme 4: Soil Carbon in N2O emissions]

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Data Set Citation

Barton L of The University of Western Australia. Effect of substituting urea with grain-legume fixed N fertiliser on CO2 emissions, and of raising pH on N2O emissions. Wongan Hills, Western Australia, 2009-2011 [Theme 4: Soil Carbon in N2O emissions].
barton.52.55 (http://www.n2o.net.au/knb/metacat/barton.52.55/html).

Entity Info
Name:
Soil Profile Properties
Number Of Records:
35
Online Distribution Info
Data:
Download File  View Licence
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Auth System:
knb
Order:
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[all] uid=datalibrarian,o=unaffiliated,dc=ecoinformatics,dc=org
Physical Structure Description
Object Name:
Soil Profile Properties (south and north) (cs update).csv
Size:
1658 byte
Text Format:
Number of Header Lines:
1
Record Delimiter:
#x0A
Attribute Orientation:
column
Simple Delimited:
Field Delimeter:
,
Attribute(s) Info:
Attribute Description
(label and definition)		Measurement Type and Domain
Horizon -
Specific layer in a soil profile. Layers defined as per the Australian Soil Classification System.
nominal
Domain Info
Soil depth -
Depth of sampling, from the soil surface downwards to 1 meter.
ratio
Unitmeter
Typenatural
Replicates -
Number of samples analysed per soil horizon
ratio
Unitdimensionless
Typenatural
Soil pH (CaCl2) -
A measure of the logarithm of the reciprocal of hydrogen-ion concentration, it gives a measure on a scale from 0 to 14 of the acidity or alkalinity of the soil. Soil samples were air-dried, sieved (<2 mm) and shaken in 0.01 M CaCl2 (1:5 soil : extract) for 1 h. Samples were allowed to settle for 30 minutes before measuring pH with a glass electrode. Reference: Rayment, G.E and Higginson, F.R. (1992). Australian Laboratory Handbook of Soil and Water Chemical Methods. (Inkata Press, Australia.)
ratio
Unitdimensionless
Typenatural
Soil pH (water) -
A measure of the logarithm of the reciprocal of hydrogen-ion concentration, it gives a measure on a scale from 0 to 14 of the acidity or alkalinity of the soil. Soil samples were air-dried, sieved (<2 mm) and shaken in water (1:5 soil : extract) for 1 h. Samples were allowed to settle for 30 minutes before measuring pH with a glass electrode. Reference: Rayment, G.E and Higginson, F.R. (1992). Australian Laboratory Handbook of Soil and Water Chemical Methods. (Inkata Press, Australia.)
ratio
Unitdimensionless
Typenatural
Electrical Conductivity -
A measure of the conduction of electricity through water. Soil samples were air-dried, sieved (<2 mm) and shaken in deionised water (1:5 soil : extract) for 1 h. Samples were allowed to settle for 30 minutes before measuring pH with a probe. Reference: Rayment, G.E and Higginson, F.R. (1992). Australian Laboratory Handbook of Soil and Water Chemical Methods. (Inkata Press, Australia.)
ratio
Unitmicrosiemens per centimeter
Typenatural
Cation exchange capacity -
Defined as the soils' ability to attract, retain, and exchange cation elements. Rayment, G.E and Higginson, F.R. (1992). Australian Laboratory Handbook of Soil and Water Chemical Methods. (Inkata Press, Australia.).
ratio
Unitmillieqivlents per 100 grams
Typenatural
Bulk density -
Defined as the mass of dry soil per unit bulk volume. Bulk density determined by measuring the oven-dried mass (105°C) of undisturbed cores (7.05 cm in height, 7.23 cm in internal diameter). Reference: McKenzie N, Coughlan K and Cresswell H (2002) ‘Soil physical measurement and interpretation for land evaluation.’ (CSIRO Publishing:Melbourne).
ratio
Unitgrams per cubic centimeter
Typenatural
Sand -
Particles 2 – 0.02mm diameter. Laboratory measurement of particle size distribution using mechanical analysis (pipette method). Reference: McKenzie N, Coughlan K and Cresswell H (2002) ‘Soil physical measurement and interpretation for land evaluation.’ (CSIRO Publishing:Melbourne).
ratio
Unitpercentage
Typenatural
Silt -
Soil particles 0.02 – 0.002mm. Laboratory measurement of particle size distribution using mechanical analysis (pipette method). Reference: McKenzie N, Coughlan K and Cresswell H (2002) ‘Soil physical measurement and interpretation for land evaluation.’ (CSIRO Publishing:Melbourne).
ratio
Unitpercentage
Typenatural
Clay -
Soil particle < 0.002mm diameter. Laboratory measurement of particle size distribution using mechanical analysis (pipette method). Reference: McKenzie N, Coughlan K and Cresswell H (2002) ‘Soil physical measurement and interpretation for land evaluation.’ (CSIRO Publishing:Melbourne).
ratio
Unitpercentage
Typenatural
Saturation -
Volumetric water content when all soil pores are full of water and no air remains in the soil. The matric potential of soil at saturation is zero. Saturation determined in the laboratory using undisturbed cores (1.0 cm in height, 5.37 cm in internal diameter). Reference: McKenzie N, Coughlan K and Cresswell H (2002) ‘Soil physical measurement and interpretation for land evaluation.’ (CSIRO Publishing:Melbourne).
ratio
Unitgrams water per cubic centimeter
Typenatural
Field Capacity -
Volumetric water content of the soil after rapid drainage has effectively ceased and the soil water content has become relatively stable. The matric potential of soil at saturation is -10 kPa. Field capacity determined in the laboratory using undisturbed cores (1.0 cm in height, 5.37 cm in internal diameter). Reference: McKenzie N, Coughlan K and Cresswell H (2002) ‘Soil physical measurement and interpretation for land evaluation.’ (CSIRO Publishing:Melbourne).
ratio
Unitgrams water per cubic centimeter
Typenatural
Permanent Wilting Point -
Volumetric water content of the soil at which plants are permanently wilted. The matric potential of permanent wilting point is -1500 kPa. Field capacity determined in the laboratory using undisturbed cores (1.0 cm in height, 5.37 cm in internal diameter). Reference: McKenzie N, Coughlan K and Cresswell H (2002) ‘Soil physical measurement and interpretation for land evaluation.’ (CSIRO Publishing:Melbourne).
ratio
Unitgrams water per cubic centimeter
Typenatural
Saturated hydraulic conductivity -
The rate that water is transmitted through a soil when the soil is saturated i.e., pores are full of water and no air present. Saturated hydraulic conductivity determined in the laboratory using undisturbed cores (7.04 cm in height, 7.26 cm in internal diameter). Reference: McKenzie N, Coughlan K and Cresswell H (2002) ‘Soil physical measurement and interpretation for land evaluation.’ (CSIRO Publishing:Melbourne).
ratio
Unitmillimeter per hour
Typenatural
Particle Density -
The mass of solid divided by its volume (sometimes referred to as specific gravity).
ratio
Unitgrams per cubic centimeter
Typenatural
Total C -
The amount of carbon in the soil. Determined by dry combustion of air-dried, finely ground soil. Reference: Rayment, G.E. and Higginson, F.R. (1992). Australian Laboratory Handbook of Soil and Water Chemical Methods pp64-66 pp203-204. Inkata Press
ratio
Unitmilligrams per gram soil
Typenatural
Total N -
The amount of nitrogen in the soil. Determined by dry combustion of air-dried, finely ground soil. Reference: Rayment, G.E. and Higginson, F.R. (1992). Australian Laboratory Handbook of Soil and Water Chemical Methods pp64-66 pp203-204. Inkata Press.Unit:
ratio
Unitmilligram per gram soil
Typenatural
Organic C -
Organic carbon determined using a modified ‘Walkely and Black method’. Reference: Rayment, G.E. and Higginson, F.R. (1992). Australian Laboratory Handbook of Soil and Water Chemical Methods pp64-66 pp203-204. Inkata Press.
ratio
Unitpercentage
Typenatural
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