图1 (IMAGE) Science China Press Caption 氧循环在地球系统科学中的地位(a)及其和其他生物地球化学循环的联系(b) Credit @Science China Press Usage Restrictions Use with credits License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.