Abbreviations and acronyms

Abbreviation/Acronym

Description

a-ANCE

net (excess) acid neutralising capacity in acidity units

AAS

atomic absorption spectrometry/spectrophotometer

AASS

actual acid sulfate soil/s

AgNO3

silver nitrate

AHD

Australian height datum

Al and Al3+

aluminium and trivalent aluminium ion

ANCE

‘excess’ acid -neutralising capacity

ASPAC

Australasian Soil and Plant Analysis Council Inc.

ASS

acid sulfate soils (embraces actual and potential AAS)

ASTM

American Society for Testing Materials

AV

agricultural value (of limestone)

BAC

buffer soil acidity

BD

bulk density

BOD

biological oxygen demand

BP

before present

BSES

Bureau of Sugar Experiment Stations

CaCO3

calcium carbonate or limestone

CaSO4.½H2O

plaster of paris

CaSO4.2H2O

hydrated gypsum

CEC

cation exchange capacity

CO2

carbon dioxide

common soil anions

bicarbonate (HCO3-), carbonate (CO32-), chloride (Cl), nitrate (NO3-), sulfate (SO42-)

common soil cations

calcium (Ca2+), magnesium (Mg2+), potassium (K+), sodium (Na+)

CrCl2

chromium chloride

D

half-drain spacing (m)

DDW

high-purity double deionised water

dia

diameter

DO

dissolved oxygen

EC

electrical conductivity

EC/SE

electrical conductivity of saturation extract

ECa

apparent soil electrical conductivity

Eh

redox potential

EM

electromagnetic induction

EMF

electro motive force

EMh

electromagnetic induction measurement in the horizontal coil-mode configuration

EPC

equilibrium P concentration

ER

efficiency rating

Fe

iron

Fe2+

ferrous iron

Fe2O3

ferric oxide or hematite

Fe2S3

iron sesquisulfide

Fe3+

ferric iron

FeOOH

goethite

FES

flame emission spectrometry

FeS

ferrous sulfide

FeS2

marcasite or white iron pyrite (lighter and more brittle than pyrite)

FeS2

iron pyrite

FIA

flow injection analysis

GFAAS

graphite furnace atomic absorption spectrometry

H+

hydrogen ion

H2O2

hydrogen peroxide

H2S

hydrogen sulfide

H2SO4

sulfuric acid

HCl

hydrochloric acid

HD

drain depth (m)

HEPA

high efficiency particulate absolute

ID

internal diameter

h

hour/s

I2

iodine

IC

ion chromatography

ICPAES

inductively coupled plasma atomic emission spectrometry

ICP-MS

inductively coupled plasma-mass spectrometry

JCU

James Cook University

K+

potassium ion

KCl

potassium chloride

KFe3(SO4)2(OH)6

jarosite

Ksat

saturated hydraulic conductivity (mm/day)

Ksp

solubility product

LCS

laboratory control sample

LOR

lower limit of reporting

LR

lime requirement

M

molar

MC

moisture content (of limestone)

min

minute/s

MIR

mid-range infrared diffuse reflectance spectroscopy

mL

millilitre

MPC

calcium dihydrogen phosphate

MSDS

material safety data sheets

mV

millivolt

N2

nitrogen gas

NOx

oxides of N

NRW

Department of Natural Resources and Water, Queensland (now Department of Environment and Resource Management)

NV

neutralising value, or neutralising capacity

o.d.

oven-dry

O2

oxygen

°C

degrees centigrade

OC

organic carbon, typically reported as carbon (C)

OM

organic matter

PASS

potential acid sulfate soil/s

PBC

phosphorus buffer capacity

PBI

phosphorus buffer index

pH

negative log (base 10) of hydrogen ion concentration

pHw

pH of a 1:5 soil/water extract

PO4-P

orthophosphate-P

POC

particulate organic carbon

POM

particulate organic matter

POS

peroxide oxidisable sulfur

POSA

peroxide oxidisable sulfidic acidity

ppm

part per million

PQL

practical quantitation limit

psi

pounds per square inch

RCF

relative centrifugal force

RODI

reverse osmosis deionised water

S and S2–

elemental sulfur and sulfide ion

SE

saturation extract/s

sec

second/s

SFA

segmented, continuous flow analysis

SKCl

soluble and adsorbed sulfur – SPOCAS and POSA methods

SOC

soil organic carbon

SOM

soil organic matter

SPOCAS

suspension peroxide oxidation combined acidity and sulfate

std.dev.

standard deviation

TAA

titratable actual acidity

TOC

total organic carbon

TOS

total oxidisable sulfur

TP

total phosphorus (in soil)

TPA

titratable potential acidity

TSA

total sulfidic acidity

TSC

total soil carbon

TSN

total soil nitrogen

TSS

total soluble salts

WSOC

readily water-soluble forms of C

XRF

X-ray fluorescence spectrometry

ZnS

zinc sulfide