Dissimilatory iron reduction is increasingly becoming recognized as an influential process in freshwater sediments, coupling with carbon cycling. To evaluate the influence of organic matter addition on the reduction rates and dynamics of Fe(III) in wetland soils in Chagan Lake, soil slurry and microbial anaerobic incubation studies were conducted by adding a soluble and redox-active quinone (anthraquinone-2,6-disulphonate, AQDS), glucose and sodium pyruvate. In soil slurry experiment, glucose was added as a single doze and a pulsed input over time. Pulsed glucose addition promoted DIR, particularly in the later incubation stage. The addition of different forms of carbon significantly affected DIR in the inoculation experiment, and the addition of pyruvate increased DIR more than that of glucose in the wetland soil. The AQDS dramatically stimulated the potential DIR by 480-fold. A negative relationship was observed between pH and DIR. Besides, potential methane production was inhibited by the addition of ferrihydrite. These findings provide insight into the connection between iron and carbon input and emission.

异化铁还原越来越多地被认为是与碳循环一起在淡水沉积物中产生影响的过程。为了评估有机物添加对查干湖湿地土壤中Fe（III）还原速率和动力学的影响，通过添加可溶性和氧化还原活性醌（蒽醌-2,6）进行了土壤淤浆和微生物厌氧培养研究。 -二磺酸盐（AQDS），葡萄糖和丙酮酸钠。在土壤泥浆实验中，葡萄糖以单次打ze和随时间变化的脉冲输入方式添加。脉冲添加葡萄糖可促进DIR，特别是在孵育后期。在接种实验中，添加不同形式的碳会显着影响DIR，而丙酮酸的添加会比湿地土壤中的葡萄糖对DIR的影响更大。AQDS极大地刺激了潜在的DIR 480倍。在pH和DIR之间观察到负相关。此外，亚铁酸盐的加入抑制了潜在的甲烷产生。这些发现为洞悉铁与碳的输入和排放之间的联系提供了见识。