The bioavailability and chemical composition of the organic component of soils and sediments from the catchment to reef (NESP TWQ 5.8, Griffith University)

This data set provides detailed information about the chemical composition, bioavailability and relative abundance of organic compounds in plant material and the organic associated with soil and sediment samples collected from terrestrial and marine environment of the Great Barrier Reef.


*This dataset is currently under embargo.


Methods:

Pre-treatment of soil and sediment samples with HF before solid-state 13C CPMAS NMR analysis removes substantial amounts of Fe2+ and Mn2+ in soil and sediment and concentrates the organic matter content of the whole sample, improving the signal/noise ratio. In this study, all soil and sediment samples for NMR analysis were pre-treated with HF 5%. Solid-state 13C CPMAS NMR spectra of the HF treated samples were obtained at a frequency of 100.6 MHz on a 300 MHz Varian VNMRS spectrometer (Varian Inc.,CA). Samples were packed in a silicon nitride rotor (optical density=7mm) and spun at 5 kHz at the magic angle. Single contact times of 2 ms were applied, with an acquisition time of 14 ms, and a recycle delay of 1.5 s. Approximately 20,000 transients were collected for all soil and sediment samples and 2,000 transients were collected for plant litter. Lorentzian line broadening function of 150 Hz was applied to all spectra. Chemical shift values were referenced externally to hexamethylbenzene at 132.1 ppm, which is equivalent to tetramethylsilance at 0 ppm. The solid-state 13C CPMAS NMR spectra were divided into the seven common chemical shift regions: aliphatic C (0-45 ppm), methoxyl C (45-60 ppm), carbohydrate C (60-90 ppm), di-o-alkyl (90-110 ppm), aryl C (110-145 ppm), O aryl C (145-160 ppm) and carboxyl C (160-180 ppm) and the relative intensity for each region was determined by integration using Varian NMR 3.1A software package. Where chemical shift boundaries were moved in this work, in comparison to previous studies, this has been to facilitate the intensity corrections necessitated by spinning side bands (SSBs) appearing in the spectra acquired in this work.


Format:

The provided dataset consists of 2 files:


1. Excel file provides the chemical composition or organic matter in plant material, soil, and sediments. In this file detailed information of 31 samples (in order from 1 to 31) are provided including the type of sample, date of location, catchment/site name, GPS coordinates and the chemical composition or organic matter as revealed by 13C CPMAS-NMR.

2. The PDF file includes the 13C CPMAS-NMR spectra for each corresponding sample (in order from 1 to 31) in the excel file.


Data Location:


This dataset is filed in the eAtlas enduring data repository at: data\custodian\2019-2022-NESP-TWQ-5\5.8_Origin-detrimental-sediment

Simple

Identification info

Date (Publication)
2021-02-22
Cited responsible party
Role Organisation Name Telephone Delivery point City Administrative area Postal code Country Electronic mail address
Principal investigator School of Environment and Science and Australian Rivers Institute, Griffith University Professor Chengrong Chen Voice facsimile Nathan Queensland 4111 Australia c.chen@griffith.edu.au
Point of contact
Role Organisation Name Telephone Delivery point City Administrative area Postal code Country Electronic mail address
Point of contact School of Environment and Science and Australian Rivers Institute, Griffith University Professor Chengrong Chen Voice facsimile Nathan Queensland 4111 Australia c.chen@griffith.edu.au
Topic category
  • Biota

Extent

Extent

Description
Great Barrier Reef, Australia


Temporal extent

Time period
2016-06-20 2018-03-13

Resource constraints

Linkage
http://i.creativecommons.org/l/by/3.0/au/88x31.png

License Graphic

Title
Creative Commons Attribution 3.0 Australia License
Cited responsible party
Role Organisation Name Telephone Delivery point City Administrative area Postal code Country Electronic mail address
Website
http://creativecommons.org/licenses/by/3.0/au/

License Text

Language
English
Character encoding
UTF8

Distribution Information

OnLine resource
NESP TWQ Hub website Project 5.8

OnLine resource
eAtlas Web Mapping Service (WMS) (AIMS)

OnLine resource
Project web site

Metadata constraints

Linkage
http://i.creativecommons.org/l/by/3.0/au/88x31.png

License Graphic

Title
Creative Commons Attribution 3.0 Australia License
Cited responsible party
Role Organisation Name Telephone Delivery point City Administrative area Postal code Country Electronic mail address
Website
http://creativecommons.org/licenses/by/3.0/au/

License Text

Metadata

Metadata identifier
3dadf670-f9b1-44d8-bce0-a5aeddf2c20a

Language
English
Character encoding
UTF8
Contact
Role Organisation Name Telephone Delivery point City Administrative area Postal code Country Electronic mail address
Point of contact Australian Institute of Marine Science (AIMS) eAtlas Data Manager Voice facsimile PRIVATE MAIL BAG 3, TOWNSVILLE MAIL CENTRE Townsville Queensland 4810 Australia e-atlas@aims.gov.au
Parent metadata

Type of resource

Resource scope
Dataset
Metadata linkage
https://eatlas.org.au/data/uuid/3dadf670-f9b1-44d8-bce0-a5aeddf2c20a

Point of truth URL of this metadata record

Date info (Creation)
2021-03-10T00:18:58
Date info (Revision)
2021-03-10T00:18:58

Metadata standard

Title
ISO 19115-3:2018
 
 

Overviews

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Spatial extent

Keywords


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