On the cover: Hydric soil testing using IRIS technology. IRIS monitor the activity of iron‐reducing bacteria that are fundamental to wetland biogeochemistry. Brian Scott, in collaboration with Dr. Martin Rabenhorst and scientists from the Experimental Station in Aula Dei, Spain, monitored iron‐reduction in real time using a modified wifi borescope camera.

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封面图片，第85卷，第1期

封面：使用IRIS技术的土壤水力测试。IRIS监测湿地生物地球化学必不可少的还原铁细菌的活性。布莱恩·斯科特（Brian Scott）与马丁·拉本霍斯特（Martin Rabenhorst）博士和西班牙奥拉德伊（Aula Dei）实验站的科学家合作，使用改进的wifi管道镜摄像机实时监控了铁的还原过程。