Dynamic Change of Groundwater Level in Waterlogged Gleyed Paddy Soils in Hilly Red Soil Region and Its Effects on Availability of Soil Nitrogen and Phosphorus
Abstract:Gleyed paddy soil is a major type of low yield paddy soil in hilly red soil region in south China. It mainly results from the high groundwater level and poor drainage due to low topographical location. In addition, inappropriate management is another factor attributed to its formation. There has been much work on the formation,physical and chemical characteristics,nutrient supply and amelioration of gleyed paddy soil.However, very little information is available on changes in groundwater level and its effe...