Laboratory study on NHNH4+-N release from the sediments of the West Lake in Hangzhou was conducted under anaerobic conditions using Rhizon-SMS (Rhizon Soil Moisture Sampler) and homemade incubator. Three phases were observed in the cumulative NH4+-N flux versus time curve and NH4+-N release rates calculated from two linear parts of flux-time curve were 11.60 and 5.12 mg m-2d-1, respectively.Rhizon-SMS was found to be easy to operate and characterized by high spatial and terporal resolution. Therefore, it has the potential of serving as a powerful tool inpore water geochemistry studies.
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Song Jing, Luo Yong-ming, Zhao Qi-guo Zhu Yin-mei, Wu Long-hua, Wu Sheng-chun. NUTRIENT RELEASE AT SEDIMENT-WATER INTERFACE I. APPLICATION OF RHIZON-SMS IN STUDY OF NITROGEN RELEASE FROM SEDIMENTS[J]. Acta Pedologica Sinica,2000,37(4):515-520.