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引进并进一步完善用离子交换膜研究原状整段土壤剖面的新方法.用提取力不同的交换剂处理阴离子交换膜,能提取出磷与土壤结合强度不同的组分,其中有些组分与土壤速效磷呈极显著正相关,即能反映原状土壤剖面微区速效磷的“瞬时释放速率”.
Introducing and further improving the new method of studying intact soil profiles by using ion exchange membrane.The anion exchange membrane with different exchangers can extract components with different binding strengths of phosphorus and soil, Phosphorus showed a very significant positive correlation, that can reflect the undisturbed soil profile micro-quick-release phosphorus “instantaneous release rate.”