Phosphorus retention in a coastal salt marsh in SE Spain.
Total and inorganic soil P were extracted from a coastal salt marsh in SE Spain receiving eutrophicated water of urban and agricultural origin. The greatest P contents were obtained within the upper 10 cm of soil of those sectors of the salt marsh most affected by urban waste water effluents. Most of the P was extracted using HCl, indicating that it is mainly bonded to Ca compounds. Only in sites with low CaCO(3) content was the quantity of P associated with Fe and Al oxides and hydroxides (extracted with NaOH) noticeable.
Alvarez-Rogel
José
J
Departamento de Ciencia y Tecnología Agraria, Area de Edafología y Química Agrícola, E.T.S. de Ingeniería Agronómica, Universidad Politécnica de Cartagena, Paseo Alfonso XIII, 52, Cartagena, 30203 Murcia, Spain. jose.alvarez@upct.es
Jiménez-Cárceles
Francisco José
FJ
Egea-Nicolás
Consuelo
C
D000327:Adsorption; D000383:Agriculture; D000535:Aluminum / Q000737:chemistry; D017610:Calcium Compounds / Q000737:chemistry; D005068:Eutrophication; D007501:Iron / Q000737:chemistry; D010758:Phosphorus / Q000032:analysis / Q000737:chemistry*; D012989:Soil Pollutants / Q000032:analysis / Q000737:chemistry*; D013030:Spain; D053833:Wetlands
D017610:Calcium Compounds; D012989:Soil Pollutants; D010758:Phosphorus; D000535:Aluminum; D007501:Iron