dc.contributor.author |
Petersen, Chantel R
|
|
dc.contributor.author |
Jovanovic, Nebojsa
|
|
dc.contributor.author |
Grenfell, MC
|
|
dc.date.accessioned |
2020-08-21T09:57:38Z |
|
dc.date.available |
2020-08-21T09:57:38Z |
|
dc.date.issued |
2020-06 |
|
dc.identifier.citation |
Petersen, C.R., Jovanovic, N. & Grenfell, M.C. 2020. The effectiveness of riparian zones in mitigating water quality impacts in an agriculturally dominated river system in South Africa. African Journal of Aquatic Science, vol 45(3), pp. 336-349 |
en_US |
dc.identifier.issn |
1608-5914 |
|
dc.identifier.issn |
1727-9364 |
|
dc.identifier.uri |
https://doi.org/10.2989/16085914.2019.1685451
|
|
dc.identifier.uri |
https://www.tandfonline.com/doi/abs/10.2989/16085914.2019.1685451
|
|
dc.identifier.uri |
http://hdl.handle.net/10204/11552
|
|
dc.description |
Copyright: 2019, NISC. Due to copyright restrictions, the attached PDF file contains the abstract of the full-text item. For access to the full-text item, please consult the publisher's website. |
en_US |
dc.description.abstract |
This study evaluates relationships between contrasting land uses representing an anthropogenic impact gradient in a coastal agricultural catchment, and riparian vegetation, as reflected in changes in nutrient dynamics and water quality. The objectives were to: 1) determine the water and sediment quality emanating from variations in land cover using runoff plots and 2) examine the influence and effectiveness of the riparian vegetation in mediating nutrient fluxes from adjacent pastures. The contrasting land covers generated different runoff volumes, nutrient concentrations and associated loads. The indigenous forest demonstrated the lowest runoff volumes, the highest TN concentrations, but the lowest cumulative TN loads over the study period. Agriculture and alien Acacia mearnsii trees had the greatest impact on nutrient loads. The highest nutrient loads were recorded from the pastures (TN: 84.8 g m-2; NH4 +-N: 38.3 g m-2) and the alien invaded degraded riparian zone (TN: 100.7 g m-2; NH4 +-N: 55.6 g m-2). The nutrient loading was dependent on land cover, land use, rainfall amount and intensity and the associated surface runoff and a decreasing trend in nutrient concentrations was observed from the pastures to the riparian zones and to the river at all sites. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
NISC |
en_US |
dc.relation.ispartofseries |
Workflow;23663 |
|
dc.subject |
Ecotone |
en_US |
dc.subject |
Land use |
en_US |
dc.subject |
Nutrient loads |
en_US |
dc.subject |
Surface runoff |
en_US |
dc.subject |
Water |
en_US |
dc.title |
The effectiveness of riparian zones in mitigating water quality impacts in an agriculturally dominated river system in South Africa |
en_US |
dc.type |
Article |
en_US |
dc.identifier.apacitation |
Petersen, C. R., Jovanovic, N., & Grenfell, M. (2020). The effectiveness of riparian zones in mitigating water quality impacts in an agriculturally dominated river system in South Africa. http://hdl.handle.net/10204/11552 |
en_ZA |
dc.identifier.chicagocitation |
Petersen, Chantel R, Nebojsa Jovanovic, and MC Grenfell "The effectiveness of riparian zones in mitigating water quality impacts in an agriculturally dominated river system in South Africa." (2020) http://hdl.handle.net/10204/11552 |
en_ZA |
dc.identifier.vancouvercitation |
Petersen CR, Jovanovic N, Grenfell M. The effectiveness of riparian zones in mitigating water quality impacts in an agriculturally dominated river system in South Africa. 2020; http://hdl.handle.net/10204/11552. |
en_ZA |
dc.identifier.ris |
TY - Article
AU - Petersen, Chantel R
AU - Jovanovic, Nebojsa
AU - Grenfell, MC
AB - This study evaluates relationships between contrasting land uses representing an anthropogenic impact gradient in a coastal agricultural catchment, and riparian vegetation, as reflected in changes in nutrient dynamics and water quality. The objectives were to: 1) determine the water and sediment quality emanating from variations in land cover using runoff plots and 2) examine the influence and effectiveness of the riparian vegetation in mediating nutrient fluxes from adjacent pastures. The contrasting land covers generated different runoff volumes, nutrient concentrations and associated loads. The indigenous forest demonstrated the lowest runoff volumes, the highest TN concentrations, but the lowest cumulative TN loads over the study period. Agriculture and alien Acacia mearnsii trees had the greatest impact on nutrient loads. The highest nutrient loads were recorded from the pastures (TN: 84.8 g m-2; NH4 +-N: 38.3 g m-2) and the alien invaded degraded riparian zone (TN: 100.7 g m-2; NH4 +-N: 55.6 g m-2). The nutrient loading was dependent on land cover, land use, rainfall amount and intensity and the associated surface runoff and a decreasing trend in nutrient concentrations was observed from the pastures to the riparian zones and to the river at all sites.
DA - 2020-06
DB - ResearchSpace
DP - CSIR
KW - Ecotone
KW - Land use
KW - Nutrient loads
KW - Surface runoff
KW - Water
LK - https://researchspace.csir.co.za
PY - 2020
SM - 1608-5914
SM - 1727-9364
T1 - The effectiveness of riparian zones in mitigating water quality impacts in an agriculturally dominated river system in South Africa
TI - The effectiveness of riparian zones in mitigating water quality impacts in an agriculturally dominated river system in South Africa
UR - http://hdl.handle.net/10204/11552
ER -
|
en_ZA |