摘要
实验研究了三种不同水稻土磷等温吸附及解吸的情况,并对影响等温吸附特性的因素做了相关探讨。结果表明:三种水稻土磷吸附曲线与简单的Langmuir等温吸附方程极为吻合,磷的解吸曲线与Langmuir等温方程也具备较好的吻合性。供试样品的相关系数均达到显著水平。土壤物理性粘粒含量显著影响土壤最大吸磷量,但对土壤磷的解吸量没有显著影响。
A experiment of phosphate adsorption and desorption isotherm for three paddy soils was conducted. The results showed that the curves of practically measured phosphate adsorption and desorption were identical with the simple Langmuir equation, and the correlation coefficients of all samples were significant at 0.01 probality level. The content of physical clay affected the maximum quantity of phosphate adsorption greatly, but had no effect on phosphate desorption.
出处
《土壤通报》
CAS
CSCD
北大核心
2008年第3期597-601,共5页
Chinese Journal of Soil Science
基金
南京信息工程大学校内基金项目(QD36)
江苏省高校自然科学研究计划项目(2535)资助
关键词
水稻土
磷
吸附
解吸
Paddy soil
Phosphorus
Adsorb
Desorb
