根际土壤磷素有效性的研究进展

Research Advance in Availability of Phosphorus in Rhizosphere Soil

综述了土壤磷素的形态(无机态磷、有机态磷)、土壤磷素的分级和根际土壤磷素有效性的影响因素(根系、土壤、微生物和环境);浅析了根际土壤磷素有效性的研究现状,发现现有研究大多是针对农田的,而针对林地的研究较少,同时缺乏对土壤-根系-微生物系统中土壤磷素有效性作用机制的系统研究。最后讨论了未来在根际土壤磷素有效性方面的研究方向。

In this paper,the forms of soil phosphorus(inorganic phosphorus and organic phosphorus),the classification of soil phosphorus and the factors affecting the availability of soil phosphorus in rhizosphere(root system,soil,microorganism and environment)were reviewed.The research status of phosphorus availability in rhizosphere soil was analyzed.It was found that most of the current studies focused on farmland,and there were relatively few studies on forest land.There was a lack of systematic research on the mechanism of soil-root-microorganism action on soil phosphorus availability.Finally,the future research direction of phosphorus availability in rhizosphere soil was discussed.