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Aportacion de nitrogeno, fosforo y s...

Corvera Gomringer, Ronald.

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Aportacion de nitrogeno, fosforo y sedimentos suspendidos durante eventos de tormenta en micro cuencas del Rio Grande de Anasco, Puerto Rico (Spanish text).

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Aportacion de nitrogeno, fosforo y sedimentos suspendidos durante eventos de tormenta en micro cuencas del Rio Grande de Anasco, Puerto Rico (Spanish text)./
作者:	Corvera Gomringer, Ronald.
面頁冊數:	121 p.
附註:	Source: Masters Abstracts International, Volume: 43-06, page: 2049.
Contained By:	Masters Abstracts International43-06.
標題:	Agriculture, Agronomy. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1426999
ISBN:	9780542136368

Aportacion de nitrogeno, fosforo y sedimentos suspendidos durante eventos de tormenta en micro cuencas del Rio Grande de Anasco, Puerto Rico (Spanish text).
Corvera Gomringer, Ronald.

Aportacion de nitrogeno, fosforo y sedimentos suspendidos durante eventos de tormenta en micro cuencas del Rio Grande de Anasco, Puerto Rico (Spanish text). - 121 p.

Source: Masters Abstracts International, Volume: 43-06, page: 2049.

Thesis (M.S.)--University of Puerto Rico, Mayaguez (Puerto Rico), 2005.

Three of the most important contaminant agents related to non-point sources are suspended sediments, nitrogen and phosphorus. This study quantified the concentration and discharges of total Kjeldhal nitrogen (TKN), total phosphorus (TP), dissolved phosphorus (DP), and suspended sediments (SS) during storm events (runoff) in two sub watersheds: Miraflores (224 ha) and Cerro Gordo (714.7 ha), which are part of the greater Rio Grande de Anasco watershed in Puerto Rico. Storm events were monitored from August 2003 until July 2004. The outlets of each sub watershed were instrumented with ISCORTM 3700 automatic sampling equipment, and a pressure transducer ISCORTM 4200. Average concentration values for SS were 1552 mg L-1 and 2738 mg L-1 for Miraflores and Cerro Gordo sub watersheds, respectively. Average concentrations of TP exceeded 0.1 mg L-1 (limit threshold suggested for eutrophication) for both sub watersheds, with values of 0.34 and 0.48 mg L-1 for Miraflores and Cerro Gordo, respectively. Average TKN concentrations were 1.70 mg L-1 for Miraflores, and 3.15 mg L-1 for Cerro Gordo. These high concentrations suggest that nutrients come from non-point sources such as rural unsewered homes, and farm animals in both sub watersheds, and intensive agricultural activities in the Cerro Gordo. Discharges of SS, TP, DP and TKN (kg ha -1) in the Cerro Gordo sub watershed were 4.5, 1.7, 1.5 and 2.3 times higher than those in Miraflores, respectively.

ISBN: 9780542136368Subjects--Topical Terms:

1018679
Agriculture, Agronomy.

Aportacion de nitrogeno, fosforo y sedimentos suspendidos durante eventos de tormenta en micro cuencas del Rio Grande de Anasco, Puerto Rico (Spanish text).
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