农田土壤磷素流失研究进展

本文对近些年来有关农田土壤磷素流失及其对水环境的影响进行综述。主要从农田土壤磷素的流失现状阐述磷素流失对水体的影响，讨论了磷肥的施用、土壤性质以及磷素的运输途径对土壤磷素流失的影响及其相关机理，同时阐述了土壤磷素流失的环境风险，最后该研究领域存在的若干问题。

The Loss of Soil Phosphorus and its Environmental Assessment

Running off of soil phosphorus and its environmental impact were recited in this paper. The impact of phosphorus running off was mainly expounded according to the current situation of phosphorus running off. The application of phosphate fertilizer was discussed, including soil properties and means of phosphorus transport, affecting soil phosphorus running off and its related mechanism. Running off of soil phosphorus was related with soil types, the high degree of phosphorus, fertilization measures, agricultural practices, hydrological conditions, land characteristics and so on. And evaluation method adopted was different, concurrently. At the same time, running off of soil phosphorus was described about phosphorus environmental risk. A number of problems in the field were put forward in conclusion. Rice-upland rotation should be strengthened in the ,future about the conditions of phosphorus running off.