Effect of Fertilization on Water-Soluble Organic C, N, and Emission of Greenhouse Gases in the Soil of Phyllostachys edulis Stands Soluble organic nitrogen (SON) in different soils on the loess Plateau of China Concentration and characteristics of soluble organic nitrogen (SON) and carbon (SOC) in different types of organic manures Effects of water condition and nitrogen level on soil dissolved nitrogen compounds Soil soluble organic nitrogen content in different forest stands in Wanmulin Nature Reserve.