土壤有机磷的研究进展

在我国的多数土壤中,土壤有机磷在土壤磷素中所占的比重较大.土壤有机磷直接关系土壤中有效磷的丰缺.它可以通过矿化作用转化为可供植物直接利用的磷.笔者从土壤有机磷的组成、土壤有机磷的分级、土壤有机磷总量的测定方法、土壤有机磷含量的影响因素、土壤有机磷的矿化及其影响因素、施肥对土壤有机磷组分含量及形态转化的影响等方面,综述了土壤有机磷近年来的研究进展,并且提出目前土壤磷素研究中存在的一些问题以及未来的研究热点.

Research Advance in Soil Organic Phosphorus

In most soils in China,proportion of soil organic phosphorus is larger in total phosphorus.Soil organic phosphorus is directly related to the content of soil available phosphorus.It can be transformed into available phosphorus by mineralization.The research advances of soil organic phosphorus in recent years were summarized from aspects of soil organic phosphorus composition,fractionation,total amount determination method,content influencing factors,mineralization and influencing factors,effects of fertilization on soil organic phosphorus fractions content and form transformation.The existing problems in soil organic phosphorus research and its hotspots in future were also put forward.