A review of sediment and nutrient concentration data from Australia for use in catchment water quality models

Bartley, Rebecca; Speirs, William; Ellis, Tim; Waters, David

doi:10.1016/j.marpolbul.2011.08.009

Cited by 79 publications

(50 citation statements)

References 72 publications

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“…For example, Bartley et al (2012) reviewed existing research to provide greatly improved land-runoff concentration values from specific landuse types for model parametisation. Lynam et al (2010) showed that Bayesian Belief Networks (BBNs) could be used to assess the probabilities of changed management practice scenarios improving sediment and nutrient loads at end of catchment while Shenton et al (2010) showed how BBNs could link improved management to marine ecosystem outcomes.…”

Section: Improving Load Estimation and Source Attributionmentioning

confidence: 99%

Terrestrial pollutant runoff to the Great Barrier Reef: An update of issues, priorities and management responses

Brodie

Kroon

Schaffelke

et al. 2012

Marine Pollution Bulletin

357

188

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Section: Improving Load Estimation and Source Attributionmentioning

confidence: 99%

Terrestrial pollutant runoff to the Great Barrier Reef: An update of issues, priorities and management responses

Brodie

Kroon

Schaffelke

et al. 2012

Marine Pollution Bulletin

357

188

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“…Many of these approaches are very useful for identifying the contemporary (~1-100 years) sources of sediment within a catchment, however, these approaches are generally limited to small areas (Foucher et al, 2015), or they do not account for the natural variation in sediment flux over time. Even in catchments with the same land use, erosion rates can vary significantly due to factors such as slope, rainfall, geology, vegetation and soil type (Bartley et al, 2012;Cerdan et al, 2010). Without an understanding of the natural susceptibility of a catchment to erosion, resources for remediation may be incorrectly allocated to areas that appear to be producing high sediment yields, when in fact they have landscape attributes that generate large volumes of sediment even in the absence of agriculture.…”

Section: Introductionmentioning

confidence: 99%

Combining contemporary and long-term erosion rates to target erosion hot-spots in the Great Barrier Reef, Australia

et al. 2015

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Highlights This paper presents the first non-modelled estimates of contemporary measured erosion rates against background long term erosion rates in the Great Barrier Reef (GBR) catchments. Using an accelerated erosion factor (AEF), this study has highlighted that there are very specific 'hot-spot' areas that warrant priority treatment in terms of catchment remediation (Bowen sub-catchment, Upper Burdekin sub-catchment and low cover grazing areas). Due to the large intra-catchment variability of erosion in space and time, this study highlights that having a single end of catchment water quality target is inappropriate. Sub-catchment monitoring and evaluation is more suitable. The erosion rates presented in this paper represent a more robust way to 'bench-mark' current erosion rates compared with the current water quality 'targets'. AbstractMethods for prioritising catchment remediation are based on understanding the source of sediment over the short-medium timescales (10-10 2 years) using techniques such as sediment finger-printing, sediment flux monitoring, and catchment modelling. Because such approaches do not necessarily quantify the natural variation in sediment flux over the longer timescale, they often represent background or pre-agricultural erosion rates poorly. This study compares long-term (~100 to >10,000 years) erosion rates derived from terrestrial cosmogenic nuclides ( 10 Be) with contemporary erosion rates obtained by monitoring sediment fluxes over ~5-10 years. The ratio of these two data sets provides a measure of the accelerated erosion factor (AEF), which can be used to identify erosion hot-spots at the sub-catchment scale. The study area is the Burdekin catchment, the largest source of contemporary sediment to the Great Barrier Reef lagoon. Long-term erosion rates vary from <0.0077 mm yr -1 in the Suttor and Belyando subcatchments to 0.0296 mm yr -1 in the Bowen. The contemporary erosion rates are highest on small hillslopes with patchy ground cover (0.2726 mm yr -1 ) and in the Bowen sub-catchment (0.2207 mm yr -1 ), and lowest in the Belyando sub-catchment (0.0019 mm yr -1 ). All but two of the sub-catchment sites have an AEF > 1.0, indicating higher contemporary erosion rates than estimated long-term averages. Results confirm that the contemporary or agriculturally-induced erosion rates at these sites have increased considerably. Within the context of the Reef Water Quality Protection Plan, these results provide justification for water quality targets to be set at the sub-catchment scale, particularly for large and geomorphically diverse catchments.

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“…Positive impacts of forests on suspended sediment concentration have been documented with numerous studies (i.e. Bartley et al 2012, Somura et al 2012. In general, suspended sediment concentration was found to be inversely proportional with forest cover percentage in a watershed (Mouri et al 2011).…”

Section: Discussionmentioning

confidence: 81%

Stream corridors as indicators of watershed land use: A case study in Istanbul

et al. 2012

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SUMMARYRiparian ecosystems as components of stream corridors provide a range of regulating ecosystem services including water production. Water quality, a component of water production is a major concern in urbanized watersheds. Water quality monitoring has been a very common method of investigating watershed impairment particularly in case of human impacts but it is now clear that hydrologic and ecological parameters may support and improve monitoring studies substantially. In three major watersheds of the Istanbul city (Alibeyköy, Sazlıdere, and Kağıthane) we initiated a large-scale study with the objective of evaluating integration, health, and functionality levels of riparian ecosystems. We combined a thorough field survey study with a GIS assessment to reach this objective. A total of 66 sub-watersheds have been selected in the main study watersheds and survey points have been determined at their outlets. All perennial streams in the study have been surveyed for 5 main categories; ecological water quality, water quality for use, riparian integrity, riparian functionality, and riparian habitat potential. We found that a substantial amount of the streams in or close to urban areas had lost their functionality. Furthermore, around 10 percent of all streams in the peri-urban areas had been channelled. Water quality has also been deteriorated in many streams. For example, average NO 3 -1 concentration at the urban streams was 76.63 mg L -1 while it was 2.67 mg L -1 at the forested part of the same watershed.Key words: urban planning, land use, sprawl, watersheds, stream corridors. RESUMENLos ecosistemas ribereños como componentes de los corredores fluviales proveen un rango de servicios ecosistémicos incluyendo la producción de agua. La calidad de agua, un componente de la producción de agua, es una preocupación relevante en las cuencas urbanizadas. El monitoreo de la calidad de agua ha sido un método comunmente aplicado para investigar el debilitamiento de las cuencas, particularmente a causa de los impactos humanos. Sin embargo, es claro que los parámetros hidrológicos y ecológicos pueden sustentar y mejorar sustancialmente los estudios de monitoreo. En tres grandes cuencas de la ciudad de Estambúl (Alibeyköy, Sazlıdere, and Kağıthane) se iniciaron estudios de gran escala con el objetivo de evaluar los niveles de integración, salud y funcionalidad de los ecosistemas ribereños. Se combinó un trabajo de campo exhaustivo con una evaluación usando SIG para alcanzar tal objetivo. Se seleccionaron 66 sub-cuencas en las principales cuencas de estudio y se determinaron puntos de muestreo en sus salidas. Todos los esteros permanentes fueron evaluados para cinco categorías principales; calidad ecológica del agua, calidad de agua para uso, integridad ribereña, funcionalidad ribereña y potencial de hábitat ribereño. Se encontró que una cantidad sustancial de los esteros en o cerca de áreas urbanas han perdido su funcionalidad. Además, cerca de un 10 % de todos los esteros en las áreas periurbanas han sido canalizados. La ...

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A review of sediment and nutrient concentration data from Australia for use in catchment water quality models

Cited by 79 publications

References 72 publications

Terrestrial pollutant runoff to the Great Barrier Reef: An update of issues, priorities and management responses

Terrestrial pollutant runoff to the Great Barrier Reef: An update of issues, priorities and management responses

Combining contemporary and long-term erosion rates to target erosion hot-spots in the Great Barrier Reef, Australia

Stream corridors as indicators of watershed land use: A case study in Istanbul

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