文献类型：期刊文献

英文题名：A comparative study on source of water masses and nutrient supply in Zhanjiang Bay during the normal summer, rainstorm, and typhoon periods: Insights from dual water isotopes

作者：Lao, Qibin;Lu, Xuan;Chen, Fajin[1];Chen, Chunqing;Jin, Guangzhe;Zhu, Qingmei

机构：[1]Guangdong Ocean Univ, Coll Ocean & Meteorol, Zhanjiang 524088, Peoples R China; Guangdong Ocean Univ, Key Lab Coastal Ocean Variat & Disaster Predict, Zhanjiang 524088, Peoples R China; Guangdong Ocean Univ, Resources & Environm Continental Shelf Sea & Deep, Key Lab Climate, Zhanjiang 524088, Peoples R China

年份：2023

卷号：903

外文期刊名：SCIENCE OF THE TOTAL ENVIRONMENT

收录：SCI-EXPANDED(收录号：WOS:001081237800001)、、EI(收录号：20233714710278)、Scopus(收录号：2-s2.0-85170263710)、WOS

基金：This study was supported by the National Natural Science Founda- tion of China (42276047, U1901213, 92158201) , and Innovation and Entrepreneurship Project of Shantou (2021112176541391) . We greatly appreciate Yan Sun for his help with the model technology in this study. We would also like to thank the anonymous reviewers for their valuable comments and suggestions.

语种：英文

外文关键词：Dual water isotopes; Water masses; Nutrients; Rainstorm; Typhoon; Zhanjiang Bay

外文摘要：Typhoons and rainstorms (rainfall >250 mm day(- 1)) are extreme weather events that seriously impact coastal oceanography and biogeochemical cycles. However, changes in the mixing of water masses and nutrient supply induced by typhoons and rainstorms can hardly be identified and quantified by traditional methods owing to the complex hydrological conditions in coastal waters. In this study, we analysed a comparative data set of dual water isotopes (delta D and delta O-18), hydrological parameters, nutrients, and chlorophyll-a from three periods (normal summer, rainstorm, and typhoon periods) in Zhanjiang Bay, a typical semi-enclosed mariculture bay in South China, to address this issue. The results revealed a significant increase in contributions from freshwater during rainstorms and typhoons. Correspondingly, nutrient supplies from freshwater during these periods remarkably increased compared to the normal summer, indicating that heavy rainfall can transport substantial amounts of terrestrial nutrients into the bay. Furthermore, disparities in hydrodynamic processes between typhoon and