Effect of Freeze-Thaw Action on Phosphorus Adsorption and Desorption in Forest Wetland Soils at High Latitudes

摘要：

　　To clear the effect of freezing and thawing on the soil phosphorus adsorption and desorption of northeast China high latitude forest wetland, the change of soil phosphorus elements after five complete freeze-thaw cycles was analyzed with Wuyiling National Wetland as experimental subjects.Result shows that the soil phosphates desorption increased after influenced by five complete freezing and thawing.Soil sample which initial phosphates concentration is 40, 80, 240 mg/L reached minimum value after three freeze-thaw cycle and then increased.Compared to the without freeze-thaw soil, phosphorus adsorption capacity of different initial concentrations of phosphate solution samples was increased after five freeze-thaw cycles indicating that freeze-thaw cycle has obvious effect on soil phosphorus adsorption and desorption.

关键词： Forest wetland Freezing and thawing Phosphorus Adsorption Desorption

作者: REN Yi-bin REN Nan-qi

作者单位: State Key Laboratory of Urban Water Resource and Environment,Harbin Institute of Technology, Harbin150090, China

会议类型: 国际会议

会议名称: 2013International Conference on Energy Engineering and Environmental Engineering(2013年能源工程与环境工程国际会议)(ICEEEE2013)

会议地点: 杭州

会议语种:英文

页码: 487-492

在线出版日期: 2013-01-18（万方平台首次上网日期，不代表论文的发表时间）