On January 15, 2019, Postdoctoral Researchers Zheng Liwei and Zheng Zhenzhen,from Gao Shuji Research Group from “Thousand Talents Program” of Xiamen University, came to Sanming Research Station to carry out cooperative research. The two researchers selected the natural forest soils developed by the Chenda granite and the Geshikao sandstone in the Sanming field station for the study of the relationships between land-source signal attenuation for organic carbon and complex adsorption and desorption processes between seawaters in different sea areas.