渤海、黄海和东海沉积有机碳及其相关参数空间分布 (IMAGE) Science China Press Caption (a)有机碳含量; (b)碳氮比; (c) δ13C; (d)陆源有机碳比例; (e)海源有机碳比例; (f) Δ14C; (g)有机碳年龄; (h)黑碳 Credit ©《中国科学》杂志社 Usage Restrictions Use with credit. License Original 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.