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Spectra s2 parts12/13/2022 ![]() ![]() The correlation between organic matter with different characteristics and environmental parameters such as salinity, pH, and chlorophyll a was analyzed. The organic matter in the bay displayed two characteristics, where the northern bay is composed of terrigenous organic matter mainly with high humus, while the southern bay is more inclined to marine sources with a high biological index (BIX) and low humification index (HIX). Influenced by freshwater input, DOM in the bay decreased from the upper bay to the outer bay. The results showed that there were many sources of organic matter in the bay, including soil input, algae input, and sewage input. In this study, in order to study the distribution and characteristics of DOM in a semi-closed bay, 34 water samples from 19 stations were collected from Zhanjiang Bay and analyzed for δ 13C of dissolved inorganic carbon (DIC) and fluorescent components of DOM. ![]() 6Key Laboratory of Space Ocean Remote Sensing and Application, Ministry of Natural Resources, Beijing, Chinaĭissolved organic matter (DOM) serves as the most active and sensitive organic component in the bay, and its biogeochemical characteristics and reactivity are affected by the properties of terrestrial and marine substances significantly.5Key Laboratory of Climate, Resources and Environment in Continental Shelf Sea and Deep Sea of Department of Education of Guangdong Province, Guangdong Ocean University, Zhanjiang, China. ![]() 4Laboratory for Coastal Ocean Variation and Disaster Prediction, College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang, China.2Research Center for Coastal Environmental Protection and Ecological Resilience, Guangdong Ocean University, Zhanjiang, China.1College of Chemistry and Environmental Science, Guangdong Ocean University, Zhanjiang, China.Yafeng Zhong 1, Gang Pan 2,3, Hui Zhao 1,2* and Chao Wang 4,5,6* ![]()
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