Investigation of phosphorus behavior and modelling in a shallow eutrophic lake:effects of physical condition

本研究的目的是澄清磷循环浅，富营养化的霞浦，日本。我们监测悬浮颗粒物和沉积物，由于物理因素，如沉积物再悬浮和沉积，这些颗粒物和沉积物可能在空间和时间上有很大的变化。作为一种分析悬浮颗粒物和沉积物中磷形态的新方法，~（31）P-核磁共振波谱法被用于分析悬浮颗粒物和沉积物中磷的形态。这一应用使得监测湖水和沉积物中磷的形态变化成为可能。我们发现悬浮颗粒物中含有与沉积物中完全不同的磷化合物

The objective of this study is to clarify phosphorus cycle in shallow, eutrophic Lake Kasumigaura, Japan. We monitored suspended particles and sediment which could widely vary spatially and temporally due to physical factors, such as sediment resuspension and sedimentation. As a new analytical method to analyze phosphorus forms in suspended particles and sediment, a 31P- nuclear magnetic resonance spectroscopy is used. This application makes possible to monitor how phosphorus forms vary in lake water and sediment. We found that suspended particles include quite different phosphorus compounds from sediment