Sources of phosphorus exported from an agricultural watershed in Pennsylvania

Sharpley, Andrew N.; Gburek, William J.; Folmar, Gordon J.; Pionke, H. B.

doi:10.1016/s0378-3774(99)00018-9

Cited by 108 publications

(80 citation statements)

References 13 publications

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“…Likewise, the excessive levels of phosphorus compounds in the Ledava River also result from farm runoff via precipitation (Lapajne 2006). Sharpley et al (1999) also determined that the concentration of phosphorus compounds increases with precipitation, and Hanrahan etal. (2003) concluded that the majority of phosphorus transfer takes place periods of intense precipitation.…”

Section: Discussionmentioning

confidence: 95%

Nitrogen and Phosphorus Pollution in Goričko Nature Park

Ilić¹,

Panjan

2018

AGS

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This article deals with the impact of diffuse and point sources of nitrogen and phosphorus pollution on the environment in Goričko Nature Park. The park was divided into three parts: the Ledava, Big Krka (Velika Krka), and Kobilje Creek (Kobiljski potok) basins, which were then compared. The surface waters were monitored and their chemical composition was examined. All three areas are characterized by elevated levels of nitrogen and phosphorus compounds in the water. Nitrogen and phosphorus pollution results from unregulated manure pits on livestock farms, unregulated sewage systems, and runoff of nitrogen and phosphorus compounds from farmland.

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Section: Discussionmentioning

confidence: 95%

Nitrogen and Phosphorus Pollution in Goričko Nature Park

Ilić¹,

Panjan

2018

AGS

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“…Calculating actual phosphorus loads which get into watercourses during heavy intensity rainfalls and correct annual loads becomes a challenge for water quality protection. It is impossible with the use of data from environment monitoring, where measurements are taken monthly or less frequently, and do not translate fully into the dynamics of changes in concentrations and loads of phosphorus compounds in surface waters [Sharpley et al 1999, Cassidy and Jordan 2011, Julich et al 2017.…”

Section: Climate Changementioning

confidence: 99%

The Implications of Economic Development, Climate Change and European Water Policy on Surface Water Quality Threats

Dąbrowska¹,

Pawęska²,

Dąbek³

et al. 2017

ASP.FC

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Abstract. The paper presents historical background, up-to-date situation and future perspectives for the development of nutrient pollution threats to European surface water quality, as well as the evolution of the approach to water pollution. Utilized agricultural area in European countries is slightly diminishing, however the consumption of mineral fertilisers is steadily increasing. The consumption in Europe in the years 2015-2030 is projected to increase by 10%, and in the world by 20%. Both climate changes leading to the increase of temperature even of ca. 6°C (in comparison to the pre-industrial period) and accelerated soil erosion due to high intensity rainfall cause increased productivity of water ecosystems. Those aspects have to be taken into consideration in water management. Due to legal regulations introduced in the last twenty years, wastewater treatment has been made more effective and population connected to wastewater treatment systems has increased. The improvement has been seen mainly in eastern and southern parts of Europe. After the implementation of Water Framework Directive theories regarding modern water management have been developed, with the aim to increase the ecosystem's capacity and its resilience to climate changes and anthropopressure.

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“…This could be considered another important insight provided by the MAP-PMA framework. In general, the pollutant removal potential is usually below a specific threshold due to local economic or technical constraints (Domingo et al, 2007;Massoud et al, 2006;Sharpley et al, 1999;Sun et al, 2010;Zhang et al, 2009). From the economic point of view, to control the NPS pollution among multiple assessment points, emission trading is recommended as a more effective approach by producing a legal right of NPS pollution discharge and trading it as a commodity between upstream and downstream areas (Crutchfield et al, 1994).…”

Section: The Comparison Between Multiple-and Singleassessment Points mentioning

confidence: 99%

Upstream to downstream: a multiple-assessment-point approach for targeting non-point-source priority management areas at large watershed scale

Chen

Zhong

Wei

et al. 2014

Hydrol. Earth Syst. Sci.

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Abstract. The identification of priority management areas (PMAs) is essential for the control of non-point-source (NPS) pollution, especially for a large-scale watershed. However, previous studies have typically focused on small-scale catchments adjacent to specific assessment points; thus, the interactions between multiple river points remain poorly understood. In this study, a multiple-assessment-point PMA (MAP-PMA) framework was proposed by integrating the upstream sources and the downstream transport aspects of NPS pollution. Daning River watershed was taken as a case study in this paper, which has demonstrated that the integration of the upstream input changes was vital for the final PMAs map, especially for downstream areas. Contrary to conventional wisdom, this research recommended that the NPS pollutants could be best controlled among the upstream highlevel PMAs when protecting the water quality of the entire watershed. The MAP-PMA framework provided a more costeffective tool for the establishment of conservation practices, especially for a large-scale watershed.

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Sources of phosphorus exported from an agricultural watershed in Pennsylvania

Cited by 108 publications

References 13 publications

Nitrogen and Phosphorus Pollution in Goričko Nature Park

Nitrogen and Phosphorus Pollution in Goričko Nature Park

The Implications of Economic Development, Climate Change and European Water Policy on Surface Water Quality Threats

Upstream to downstream: a multiple-assessment-point approach for targeting non-point-source priority management areas at large watershed scale

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