A snapshot of the limnology of eastern Australian water-bodies spanning the tropics to Tasmania: the land-use, climate, limnology nexus

Chang, Jie Christine, Woodward, Craig and Shulmeister, James (2014) A snapshot of the limnology of eastern Australian water-bodies spanning the tropics to Tasmania: the land-use, climate, limnology nexus. Marine and Freshwater Research, 65 10: 872-883. doi:10.1071/MF13265


Author Chang, Jie Christine
Woodward, Craig
Shulmeister, James
Title A snapshot of the limnology of eastern Australian water-bodies spanning the tropics to Tasmania: the land-use, climate, limnology nexus
Journal name Marine and Freshwater Research   Check publisher's open access policy
ISSN 1323-1650
1448-6059
Publication date 2014-07-01
Sub-type Article (original research)
DOI 10.1071/MF13265
Volume 65
Issue 10
Start page 872
End page 883
Total pages 12
Place of publication Clayton, Australia
Publisher C S I R O Publishing
Language eng
Abstract This is a study of 45 natural and artificial water bodies extending across the whole of eastern Australia from the tropics to Tasmania. A broad variety of physio-chemical, land-use and climatic parameters were measured. Reservoirs and other artificial water bodies respond to stressors in their catchments in a similar fashion to natural lakes but tend to be less nutrient rich possibly due to shorter residence times and active management. pH and salinity are strongly correlated in the dataset. Bedrock has a strong influence on pH in freshwater lakes but all highly saline lakes are alkaline, irrespective of bedrock. High concentrations of anions in saline lakes preclude the existence of acid conditions by binding available hydrogen ions. Almost all lakes fall on salinity axes that indicate marine origin for their salts. An assessment of the TN:TP molar ratios from the lakes in this dataset indicates that productivity in Australian lakes could be limited by both nitrogen and phosphorus. Future research using macro-nutrient enrichment experiments should be pursued to confirm this preliminary observation. There is a strong positive correlation between regional aridity and lake eutrophication. This is typical of semi-arid and seasonally arid environments and reflects the concentration of nutrients due to evaporative flux in shallow basins with high residence times.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Geography, Planning and Environmental Management Publications
Official 2015 Collection
 
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Created: Tue, 18 Feb 2014, 02:22:04 EST by Claire Lam on behalf of School of Geography, Planning & Env Management