土壤对氮、磷吸附/解吸附特性研究进展

研究土壤对氮、磷的吸附/解吸附特性对合理施肥、防止环境污染等有重要的作用。本文在介绍目前常用的描述土壤氮、磷吸附/解吸附特性方程（Langmuir方程、Temkin方程和Freundlich方程）的基础上，综述了国内外对土壤氮、磷吸附/解吸附机制、影响因素（粘粒含量、pH值、有机质、阳离子交换量以及矿物组成等）、动力学方程等方面的研究进展。论文还提出应加强对根际土氮、磷吸附/解吸附特性研究、应长期定位研究氮、磷吸附/解吸附特性、应加强林地及苗圃土壤氮、磷吸附/解吸附特性研究的建议。

Study progress of nitrogen and phosphate adsorption&desorption in soils

The research in adsorption and desorption of nitrogen and phosphate is crucial to application of fertilization and environmental pollution prevention. In addition to introduce three equations-- Langmuir Equation, Temkin Equation and Freundlich Equation--which have been currently applied to describe adsorption and desorption, this thesis synthesizes the national and international wise research progress of the mechanism, the affection components (including clay content, pH index, organic matter, cation exchange capacity and mineral composition), and the kinetics equation of soil adsorption and desorption. Moreover, this thesis also proposed and suggested that the future research in a long term should be oriented in the study of the special characteristics of soil adsorption and desorption; especially the study of the special characteristics of adsorption and desorption of rhizosphere soils, and the soil from forest and nursery should be strengthened.