摘要
实验研究下辽河平原4个典型区域水稻土中氨氮吸附／解吸的情况，并进行模型拟合验证．结果表明：各剖面土样对氨氮吸附量均随时间的增加而逐渐增大，吸附时间基本为15--20min，ExpAssoc模型对氨氮吸附动力学曲线拟合效果较好．各剖面土样均呈现解吸量随时间的增加逐渐变慢，解吸时间基本为3～5h，在时间上，吸附时间要比解吸时间快18倍左右，Asymptoticl模型对氨氮解吸动力学曲线拟合效果较好．
This paper did a research on Ammonia absorption/desorption behavior in paddy soil from four typical areas in Lower Position of Liao River Plain, and presented a model and its fit-test. The result shows that the Ammonia absorption amount for every profiles of soil sample increases with the time, and the absorption time is about 15-20min, and ExpAssoc model fits better for curves of Ammonia absorption behavior. The Ammonia desorption slows down with the time in all soil sample and the desorption time is about 3-5h. In terms of time, the desorption time is about 18 times as long as that of absorption, and Asymptoticl model fits better for curves of ammonia desorption behavior.
出处
《辽宁工程技术大学学报（自然科学版）》
CAS
北大核心
2014年第1期94-98,共5页
Journal of Liaoning Technical University (Natural Science)
基金
973国家基础计划基金资助项目(2010CB428801)
