概括土壤铵固定及固定态铵释放研究的历史及现状，重点介绍台湾土壤固定铵的研究成果，包括土壤粘粒不同层面电荷、粘粒表面铵离子交换选择性、粘粒表面净零电荷点和净表面电荷、表面电荷非均匀性等对铵固定的影响，供铵固定电学特性研究参考 Summarize the history and status quo of research on ammonium fixation and fixed ammonium release in soil, focusing on the research results of fixed ammonium in soils in Taiwan, including the charge of different layers of soil clay, ammonium ion exchange selectivity of clay surface, net zero charge of clay surface Net surface charge, non-uniform charge on the surface of the impact of ammonium fixation for ammonium fixed electrical properties of reference