Model Estimation of Volatilization of Ammonia Appliedwith Surface Film-Forming Material

查看全文 作　　者：[1]ZHUANGSHUNYAO;[2]YINBIN;等 机构地区：[1]InstituteofSoilScience,theChineseAcademyofSciences,Nanjing210008,China;[2]InstituteofSoilScience,theChin 出　　处：《Pedosphere》索引1999年第9卷第4期,共6页 摘　　要：Greenhouse experiments were conducted to determine the ammonia volatilization loss with or withoutapplication of surface film-forming material (SFFM). Ammonia volatilization loss was estimated by the modeldeveloped by Jayaweera and Mikkelsen. The results showed that the model could estimate and predict wellammonia volatilization loss also in case of SFFM addition. There was an emended factor B introduced tothe model calculation when SFPM was used. Simulated calculation showed that the effect of factor B onNHa loss was obvious. The value of B was governed by SFFM and the environmental conditions. Sensitivityanalysis suggested that pH was the main factor coatrolling NH3 volatilization loss from the floodwater. 关 键 词：表面成膜材料 氨气挥发损失 施肥 模型估测