摘要
淹水和干湿交替条件下,土壤磷水土界面的迁移能力有较大的差别,模拟研究结果表明:淹水和干湿交替能促进紫色土和水稻土对磷的吸附,减小磷的解吸率,降低磷水土界面的迁移能力,其向环境中的释磷风险为未淹水土壤>干湿交替土壤>淹水土壤,紫色土>水稻土。
The potential P loss from purple and paddy soils under flooding and alternate flooding - air drying was evaluated in a laboratory simulation experiment. It was shown that P sorption capacity under flooding and flooding - air drying conditions was higher than that of the dryland soil. P loss from flooding soil via runoff and leaching was lower than that from the alternate flooding - air drying soil and dryland soil, and the risk of P loss from the paddy soil was lower than that from the purple soil.
出处
《西南农业大学学报（自然科学版）》
CSCD
北大核心
2005年第4期459-463,共5页
Journal of Southwest Agricultural University
基金
国家教育部春辉计划资助项目
关键词
磷
淹水
干湿交替
等温吸附解吸父
phosphorus
flooding
alternate flooding- air- drying
sorption and desorption isotherm
