Upland Heath Swamps Plot Network: Soil Properties, Dharawal National Park and Dharawal Nature Reserve, Sydney Basin, NSW, Australia, 1983-2014

Abstract: This Upland Heath Swamps Plot Network Soil Properties Data Package contains detailed soil analysis, taken between 1983 and 2014, from 60 established swamp monitoring sites in upland swamps scattered throughout the study area (Keith and Myerscough 1993). Each site is sampled in nine combinations of moisture-by-vegetation structure strata. The Upland Heath Swamps Plot Network research plots commenced in 1983 and have been revisited in 2004, 2009 and again in 2014. A synopsis of related data packages which have been collected as part of the Upland Heath Swamps Plot Network’s full program is provided at https://doi.org/10.25911/5c1313b2b2644. Sampling method: Originally each sample site was a belt transect of 60 contiguous 0.5x0.5 m quadrats, in which presence/absence of all vascular plant taxa were recorded (based on whether they were overhanging the quadrats) and tallied to give a frequency out of 60. The sites were originally sampled in 1983, marked in the field by two wooden stakes at either end of the transect, and plotted on a 1:10 000 aerial photograph. By 2004, it was possible to relocate 54 of the 60 original transects and of these, at least one of the original markers was found for 20 transects. During the intervening years, some of the wooden markers had been consumed by fires, but based on the annotated aerial photograph, field notes and detailed recollections of the original observer (David Keith), transects were confidently reestablished within approximately 10 m of their original location. These formed the basis for establishing permanent swamp monitoring sites, which are now marked in the field at the positions of quadrats 1 and 30 with steel star pickets, extending approximately 1.5 m above ground surface, and located on the Map Grid of Australia (Geodectic Datum of Australia) using a global positioning system. Study extent: During 2014, soils were sampled at all 54 sites. In previous surveys (only year recorded, not date), they were sampled at a random sample of 20 sites stratified by the soil moistire gradient and vegetation structure. Additionally, the exchangable manganese (Mn), total organic carbon (TOC) and moisture content were not measured in the years before 2014. The next census is scheduled for 2019 or within 12 months of the next bushfire, whichever occured first. Surface litter was removed from samples prior to collection. Project funding: Between 2012 and 2018 this project was part of, and funded through the Long Term Ecological Research Network (LTERN) a facility within the Terrestrial Ecosystem Research Network (TERN) and supported by the Australian Government through the National Collaborative Research Infrastructure Strategy.
Type
collection
Title
Upland Heath Swamps Plot Network: Soil Properties, Dharawal National Park and Dharawal Nature Reserve, Sydney Basin, NSW, Australia, 1983-2014
Alternate Title
Upland Heath Swamps Plot Network: Soil Properties Dharawal National Park, 1983-2014
Collection Type
Dataset
Access Privileges
Long Term Ecological Research Network
DOI - Digital Object Identifier
10.25911/5c36d4501a15f
Metadata Language
English
Data Language
English
Brief Description
This Upland Heath Swamps Plot Network Soil Properties Data Package contains detailed soil analysis, taken between 1983 and 2014, from 60 established swamp monitoring sites in upland swamps. A synopsis of related data packages which have been collected as part of the Upland Heath Swamps Plot Network’s full program is provided at https://doi.org/10.25911/5c1313b2b2644.
Full Description
Abstract: This Upland Heath Swamps Plot Network Soil Properties Data Package contains detailed soil analysis, taken between 1983 and 2014, from 60 established swamp monitoring sites in upland swamps scattered throughout the study area (Keith and Myerscough 1993). Each site is sampled in nine combinations of moisture-by-vegetation structure strata. The Upland Heath Swamps Plot Network research plots commenced in 1983 and have been revisited in 2004, 2009 and again in 2014. A synopsis of related data packages which have been collected as part of the Upland Heath Swamps Plot Network’s full program is provided at https://doi.org/10.25911/5c1313b2b2644. Sampling method: Originally each sample site was a belt transect of 60 contiguous 0.5x0.5 m quadrats, in which presence/absence of all vascular plant taxa were recorded (based on whether they were overhanging the quadrats) and tallied to give a frequency out of 60. The sites were originally sampled in 1983, marked in the field by two wooden stakes at either end of the transect, and plotted on a 1:10 000 aerial photograph. By 2004, it was possible to relocate 54 of the 60 original transects and of these, at least one of the original markers was found for 20 transects. During the intervening years, some of the wooden markers had been consumed by fires, but based on the annotated aerial photograph, field notes and detailed recollections of the original observer (David Keith), transects were confidently reestablished within approximately 10 m of their original location. These formed the basis for establishing permanent swamp monitoring sites, which are now marked in the field at the positions of quadrats 1 and 30 with steel star pickets, extending approximately 1.5 m above ground surface, and located on the Map Grid of Australia (Geodectic Datum of Australia) using a global positioning system. Study extent: During 2014, soils were sampled at all 54 sites. In previous surveys (only year recorded, not date), they were sampled at a random sample of 20 sites stratified by the soil moistire gradient and vegetation structure. Additionally, the exchangable manganese (Mn), total organic carbon (TOC) and moisture content were not measured in the years before 2014. The next census is scheduled for 2019 or within 12 months of the next bushfire, whichever occured first. Surface litter was removed from samples prior to collection. Project funding: Between 2012 and 2018 this project was part of, and funded through the Long Term Ecological Research Network (LTERN) a facility within the Terrestrial Ecosystem Research Network (TERN) and supported by the Australian Government through the National Collaborative Research Infrastructure Strategy.
Methods
1
Plot set-up
Sampling of soil is stratified along the soil moisture gradient and across the range of structural variability in the vegetation. Thus three categories of soil moisture and three categories of vegetation structure (based on the height and form of shrubs) are sampled in a factorial design at 60 sites in upland swamps scattered throughout the study area (Keith and Myerscough 1993).
Each permanent swamp monitoring site consists of a belt transect of 30 contiguous 0.5x0.5 metre quadrats. Quadrats 1 and 30 are marked with steel star pickets, extending approximately 1. 5 m above ground surface, and located on the Map Grid of Australia (Geodectic Datum of Australia) using a global positioning system.
•Steel star pickets
•measuring tape
•GPS
2
Soil survey
Duplicate samples of surface soils (0-7 cm depth) are collected from a stratified random subsample of transects from the nine combinations of the moisture-by-vegetation structure strata using an auger 2.5 cm in diameter. All samples were collected on the same day, homogenised and stored in sealed clip-lock plastic bags for transport to the laboratory for analysis of exchangeable cations (K, Na, Mg, Ca, Al), pH, electrical conductivity (EC), water content, loss on ignition (LOI), total phosphorus (P), total iron (Fe) and nitrate (NO3). Cation exchange capacity was determined by the Silver Thiourea method, pH was determined using 1:2 CaCl2 extract, electrical conductivity and nitrate are determined in 1:5 water solution, total P and Fe are determined using HCl digests, LOI is gravimetrically determined at 55C and water content is determined by moisture lost on drying the sample (Keith and Myerscough 1993).
•2.5 cm pipe auger
•plastic bags
•soil analytical laboratory
File Descriptions
kuhs_dharawal_soil_properties_1983-2014_p915t1305.csv
cation_exchange_capacity
definitionCation exchange capacity of soil sample in milliequivalent (mEq)
ratio custom unitmilliEquivalents
ratio number typereal
date
date time formatYYYY-MM-DD
definitionDate soil sample was collected
electrical_conductivity
definitionElectrical conductivity of soil sample
ratio custom unitmicroSiemenPerCentimeter
ratio number typewhole
exchangeable_al
definitionExchangeable aluminium in soil sample in milliequivalents (mEq)
ratio custom unitmilliEquivalents
ratio number typereal
exchangeable_ca
definitionExchangeable calcium in soil sample in milliequivalents (mEq)
ratio custom unitmilliEquivalents
ratio number typereal
exchangeable_k
definitionExchangeable potassium in soil sample in milliequivalents (mEq)
ratio custom unitmilliEquivalents
ratio number typereal
exchangeable_mg
definitionExchangeable magnesium in soil sample in milliequivalents (mEq)
ratio custom unitmilliEquivalents
ratio number typereal
exchangeable_mn
definitionExchangeable manganese in soil sample in milliequivalents (mEq). Values less than the detection limit (<0.01) were set to 0.005 (the midpoint between zero and the limit of detectability).
ratio custom unitmilliEquivalents
ratio number typereal
exchangeable_na
definitionExchangeable sodium in soil sample in milliequivalents (mEq)
ratio custom unitmilliEquivalents
ratio number typereal
loss_on_ignition
definitionLoss on ignition %
ratio number typereal
ratio standard unitnumber
moisture_content
definitionMoisture content in soil sample (%)
ratio number typereal
ratio standard unitnumber
no3_n
definitionNitrate concentration in soil sample. Values less than the detection limit (<0.5) were set to 0.25 (the midpoint between zero and the limit of detectability).
ratio custom unitmilligramPerKilogram
ratio number typereal
ph
definitionpH of soil sample using pH(CaCl2)
interval number typereal
interval standard unitnumber
site
definitionSite identifier
nominal text definitionCharacter
total_fe
definitionTotal Iron in soil sample % dry weight
ratio number typereal
ratio standard unitnumber
total_organic_carbon
definitionTotal organic carbon in soil sample %
ratio number typereal
ratio standard unitnumber
total_p
definitionTotal phosphorus in soil sample %
ratio custom unitmilligramPerKilogram
ratio number typereal
year
date time formatYYYY
definitionYear of survey
Contact Email
david.keith@environment.nsw.gov.au; christopher.simpson@unsw.edu.au; k.wilkins@unsw.edu.au; mark.tozer@environment.nsw.gov.au; r.woodward@unsw.edu.au; t.mason@unsw.edu.au; david.keith@unsw.edu.au
Contact Address
Australian Wetlands, Rivers and Landscapes Centre, School of Biological, Earth and Environmental Sciences, University of New South Wales SYDNEY, NSW, 2052 Australia
Contact Phone Number
+61 2 9995 5000; +61 409 159 334; +61 2 9385 8435; +61 2 9585 6496; +61 2 9585 6051; +61 2 9385 8296; +61 2 9385 2111; +61 427 856 498; +61 428 810 214
Principal Investigator
David Keith
Supervisors
David Keith
Collaborators
Tanya Mason; Chris Simpson; Dick Williams; Katy Wilkins; Mark Tozer
Fields of Research
0503 - Soil Sciences; 0602 - Ecology
Keywords
GCMD:Earth Science > Land Surface > Soils; GCMD:Earth Science > Land Surface > Soils > Soil pH; GCMD:Earth Science > Land Surface > Soils > Soil Chemistry; GCMD:Earth Science > Land Surface > Soils > Electrical Conductivity; GCMD:Earth Science > Land Surface > Soils > Soil Moisture/Water Content; LTERN Monitoring Theme:Soil; keyword:Soil pH; keyword:Soil chemistry; keyword:Soil conductivity; keyword:Soil moisture; Upland Heath Swamps; Dharawal National Park; Soil Properties
Type of Research Activity
Strategic basic research
Date Coverage
1983
2014
Geospatial Location
text
Dharawal National Park, Sydney Basin, NSW, Australi
iso19139dcmiBox
northlimit = -34.2008; southlimit = -34.26344; westlimit = 150.84554; eastLimit = 150.93563
Date of data creation
2018-10-26
Year of data publication
2018
Creator(s) for Citation
David
Keith
Chris
Simpson
Katy
Wilkins
Mark
Tozer
Dick
Williams
Tanya
Mason
Publisher for Citation
Long Term Ecological Research Network (LTERN), ANU Data Commons, The Australian National University
Related Websites
https://hdl.handle.net/1885/130861
ANU Open Research, Long Term Ecological Research Network (LTERN) collection.
Other Related Identifiers
MorphoId:ltern6.315; PackageId:915
Access Rights
Prior to publication of research utilising this data, the data provider (David Keith) requests consultation.
Access Rights Type
Open
Rights held in and over the data
Creative Commons Licence (CC BY- Attribution) is assigned to this data. Details of the licence can be found at https://creativecommons.org/licenses/by/4.0/
Licence Type
CC-BY - Attribution (Version 4)
Licence
LTERN Deed: 13 and 14 Date of execution: 2014-04-30
Retention Period
Indefinitely
Status: Published
Published to:
  • Australian National University
  • Australian National Data Service
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