Study on spatial variation of phosphorus in typical wetland soil of poyang lake: case study of wucheng town zhonghu pond

An analysis was given to the spatial and temporal variation of organic matters in Zhonghu pond of Poyang Lake. The results indicated that the total P and available P of surface layer obviously is higher than the others. There is significant available P and total P in depth. Available P of recent water is higher than others and lower far water in different distribution. The tendency of total P fluctuates in the space. The total P is increasing with the time to pass.