PHOSPHATE AND NITRATE SORPTION ON CALCAREOUS SOILS FROM SPAIN

被引：11

作者：

GONZALEZPRADAS, E

VILLAFRANCASANCHEZ, M

SOCIASVICIANA, M

机构：

[1] Dpto. Química Inorgánica, Campus Universitario de Almerfa, Universidad de Granada, Almería

来源：

ARID SOIL RESEARCH AND REHABILITATION | 1993年 / 7卷 / 02期

关键词：

NITRATE; PHOSPHATE; SORPTION; SEMIARID HOT REGION;

D O I：

10.1080/15324989309381347

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The sorption processes of phosphate and nitrate on calcareous soils from Almeria (East-Andalucia, Spain), and from aqueous solution at 30-degrees-C, have been studied. The experimental data for phosphate and nitrate sorption on the soils studied were compared by using the Langmuir's equation. Sorption capacity values (X(m)) range from 1.38 x 10(-3) mmol H2PO4- g-1 volcanic soil to 11.88 mmol H2PO4- g-1 brown lime and saline soils for phosphate, and from 0.19 x 10(-3) mmol NO3- g-1 desert soil to 0.34 x 10(-3) mmol NO3- g-1 brown lime soil for nitrate. X(m) values were higher for phosphate than for nitrate. The sorption of phosphate and nitrate on Almeria soils at the experimental conditions used was correlated with the soil organic matter content. The correlation coefficients were 0.77 for phosphate and 0.95 for nitrate.

引用

页码：181 / 190

页数：10

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