Major ion chemistry and weathering processes of the Danjiangkou Reservoir, China
A total of 40 water samples were collected from five sites in the Danjiangkou Reservoir, an important drinking water source in China. Over the period November 2004–June 2006, eight field surveys were conducted and water temperature, pH, EC, major ions (Na+, K+, Ca2+, Mg2+, Cl- , SO2- 4 and HCO- 3 ) an...
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Online Access: | https://epubs.scu.edu.au/geoscience_pubs/221 https://doi.org/10.1080/02626667.2010.530096 |
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ftsoutherncu:oai:epubs.scu.edu.au:geoscience_pubs-1220 2023-05-15T15:52:45+02:00 Major ion chemistry and weathering processes of the Danjiangkou Reservoir, China Li, Siyue Zhang, Quanfa 2010-01-01T08:00:00Z https://epubs.scu.edu.au/geoscience_pubs/221 https://doi.org/10.1080/02626667.2010.530096 unknown ePublications@SCU Southern Cross GeoScience major ions chemical weathering spatial and temporal variation Danjiangkou Reservoir China Earth Sciences article 2010 ftsoutherncu https://doi.org/10.1080/02626667.2010.530096 2019-08-06T12:57:12Z A total of 40 water samples were collected from five sites in the Danjiangkou Reservoir, an important drinking water source in China. Over the period November 2004–June 2006, eight field surveys were conducted and water temperature, pH, EC, major ions (Na+, K+, Ca2+, Mg2+, Cl- , SO2- 4 and HCO- 3 ) and Si were monitored to determine their temporal and spatial patterns across the reservoir. The controlling factors were analysed using the stoichiometry of the water chemicals and multivariate statistics including a correlation matrix and analysis of variance. The results revealed that waters in the reservoir are sub-alkaline and have a low solute load, and most water variables exhibit notable spatial and temporal variations. The major ion chemistry of the reservoir was controlled by carbonate weathering (of limestone) with the dominant ions Ca2+ and HCO- 3 contributing 63–81% and 73–81% to the major cation and anion budgets, respectively. Carbonate dissolution was produced by both sulfuric and carbonic acids; in particular carbonic acid and silicate contributed little to the reservoir waters, while SO2- 4 was important and originated primarily from anthropogenic inputs. This research will help water quality conservation in the Danjiankou Reservoir, China. Article in Journal/Newspaper Carbonic acid Southern Cross University: epublications@SCU Hydrological Sciences Journal 55 8 1385 1395 |
institution |
Open Polar |
collection |
Southern Cross University: epublications@SCU |
op_collection_id |
ftsoutherncu |
language |
unknown |
topic |
major ions chemical weathering spatial and temporal variation Danjiangkou Reservoir China Earth Sciences |
spellingShingle |
major ions chemical weathering spatial and temporal variation Danjiangkou Reservoir China Earth Sciences Li, Siyue Zhang, Quanfa Major ion chemistry and weathering processes of the Danjiangkou Reservoir, China |
topic_facet |
major ions chemical weathering spatial and temporal variation Danjiangkou Reservoir China Earth Sciences |
description |
A total of 40 water samples were collected from five sites in the Danjiangkou Reservoir, an important drinking water source in China. Over the period November 2004–June 2006, eight field surveys were conducted and water temperature, pH, EC, major ions (Na+, K+, Ca2+, Mg2+, Cl- , SO2- 4 and HCO- 3 ) and Si were monitored to determine their temporal and spatial patterns across the reservoir. The controlling factors were analysed using the stoichiometry of the water chemicals and multivariate statistics including a correlation matrix and analysis of variance. The results revealed that waters in the reservoir are sub-alkaline and have a low solute load, and most water variables exhibit notable spatial and temporal variations. The major ion chemistry of the reservoir was controlled by carbonate weathering (of limestone) with the dominant ions Ca2+ and HCO- 3 contributing 63–81% and 73–81% to the major cation and anion budgets, respectively. Carbonate dissolution was produced by both sulfuric and carbonic acids; in particular carbonic acid and silicate contributed little to the reservoir waters, while SO2- 4 was important and originated primarily from anthropogenic inputs. This research will help water quality conservation in the Danjiankou Reservoir, China. |
format |
Article in Journal/Newspaper |
author |
Li, Siyue Zhang, Quanfa |
author_facet |
Li, Siyue Zhang, Quanfa |
author_sort |
Li, Siyue |
title |
Major ion chemistry and weathering processes of the Danjiangkou Reservoir, China |
title_short |
Major ion chemistry and weathering processes of the Danjiangkou Reservoir, China |
title_full |
Major ion chemistry and weathering processes of the Danjiangkou Reservoir, China |
title_fullStr |
Major ion chemistry and weathering processes of the Danjiangkou Reservoir, China |
title_full_unstemmed |
Major ion chemistry and weathering processes of the Danjiangkou Reservoir, China |
title_sort |
major ion chemistry and weathering processes of the danjiangkou reservoir, china |
publisher |
ePublications@SCU |
publishDate |
2010 |
url |
https://epubs.scu.edu.au/geoscience_pubs/221 https://doi.org/10.1080/02626667.2010.530096 |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_source |
Southern Cross GeoScience |
op_doi |
https://doi.org/10.1080/02626667.2010.530096 |
container_title |
Hydrological Sciences Journal |
container_volume |
55 |
container_issue |
8 |
container_start_page |
1385 |
op_container_end_page |
1395 |
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1766387859334365184 |