• 关键词：磷  土壤  迁移转化

• 基金项目：国家自然科学基金资助项目(29777001)

• 王亚男
• 北京师范大学环境科学研究所环境模拟与污染控制国家重点实验室,北京 100875

• 王红旗
• 北京师范大学环境科学研究所环境模拟与污染控制国家重点实验室,北京 100875

• 舒艳
• 北京师范大学环境科学研究所环境模拟与污染控制国家重点实验室,北京 100875

• 摘要：以土柱实验为基础,结合磷在土壤中的化学转化机理,将磷在土壤中的形态分为可溶态磷、吸附态磷和沉淀态磷.根据磷在土壤中的迁移转化模拟实验,分析了这3种形态的磷在土壤中迁移转化的规律:可溶态磷进入土壤后,主要随水分作溶质迁移,在迁移的同时,不断转化为吸附态磷和各种沉淀态磷;吸附态磷由可溶态磷生成,并与可溶态磷一起发生沉淀反应生成沉淀态磷,但固着于土壤颗粒上,不发生迁移;沉淀态磷由可溶态磷和吸附态磷生成,在土壤中主要参与化学转化;沉淀态磷在土壤中有随水分迁移的现象.

• Abstract：An experiment, was performed to simulate phosphorus transferring and transforming in the soil. The results showed that, phosphorus in the soil can be water P, adsorption P or deposition P,and each follows its own transfer and transforom law. The water P transfers with water firstly, at the same time it transforms to adsorption P and deposition P successively: The adsorption P can not be transferred but is adsorbed by the particle in the soil, and turned into deposition P as time goes on. The deposition P in transformed from water P and adsorption P. It is specially important that deposition P was found transfers with water in the soil during the experiment.

• Key words：Phosphorus  soil  transfer and transform

• 
  摘要点击次数： 1579 全文下载次数： 2562