氧是土壤中最活泼的电子接受体,与土壤的氧化还原状况有极密切的关系。在土壤空气能与大气进行自由交换的非渍水土壤中,氧是决定氧化强度的主要体系。在土壤淹水后,大气氧向土壤中的扩散受阻,土壤的含氧量由于生物和化学消耗而逐渐减低。过去的研究工作,主要着眼于土壤渍水后氧的生物消耗。但是对于已经处于还原 Oxygen is the most active electron acceptor in the soil and has a very close relationship with the redox status of the soil. In non-waterlogged soils where soil air can freely exchange with the atmosphere, oxygen is the main system that determines the oxidation strength. After flooding of the soil, the diffusion of atmospheric oxygen into the soil is blocked, and the oxygen content of the soil is gradually reduced due to biological and chemical consumption. Past research efforts focused on the biological consumption of oxygen after soil waterlogging. But for already restored