1999
DOI: 10.1016/s0378-3774(99)00018-9
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Sources of phosphorus exported from an agricultural watershed in Pennsylvania

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Cited by 108 publications
(80 citation statements)
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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%
“…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%
“…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%
“…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%