重点关注区域：（1）南海海域：关乎岛礁安全，重建南沙珊瑚岛礁的形成与演化历史，探讨其变化的主控机理及调控因素；（2）印度洋北部海域：响应“一带一路”倡议，国际海洋沉积物从源到汇研究的重点靶区。

研究成果：（1）揭示南沙岛礁的形成演化模式；（2）阐述气候环境变化的低纬过程；（3）探讨陆源有机碳输运-埋藏过程与主控机理。

近期研究内容：（1）厘清印度洋偶极子、底层深水洋流、冰融水等对低纬海域的影响；（2）针对古老地层中出现的雯石，开展系统性研究工作，并尝试阐明南沙区域岛礁的形成历史；（3）对比冷泉核心与周边区域的样品数据，分析冷泉对沉积物的作用及其出现的期次。

1. 东北印度洋沉积记录对印度洋偶极子发育演化的响应研究，国家自然科学基金面上项目，2022年1月-2025年12月，主持

2. 末次冰消期以来北极东西伯利亚陆架对快速气候变化的响应，国家自然科学基金重点项目，2022年1月-2026年12月，参与

3. 礁体精细元素与矿物地层构建，国家重点研发计划，2021年12月-2025年12月，参与

4. 中新世以来缅甸海陆对比的古气候变化及其机制研究，国家重点研发计划项目，2025年12月-2028年11月，参与

1. 近五年发表文章13篇。

2. 代表性论文：

1）Zheng Xu, Ying Yang, Jianguo Liu*, Yun Huang, Xiting Liu, Fangjian Xu，2026. Orbital-scale sea level and millennial-scale climatic event controls on terrestrial input in the northern Ninetyeast Ridge over the past 40 kyr. Palaeogeography, Palaeoclimatology, Palaeoecology 682，113430. (二区SCI，影响因子2.7)

2）Md. Sazzad Hossen, Jianguo Liu*, Yun Huang*, Md Hafijur Rahaman Khan, Bin Wang, 2025. Sea level changes and the Indian Summer Monsoon influence on chemical weathering and sediment deposition on the Ninetyeast Ridge over the past 21 ka. Marine Geology 489, 107632. (二区SCI，影响因子2.2)

3）Md Hafijur Rahaman Khan, Jianguo Liu*, Yun Huang*, Ananna Rahman, Md. Sazzad Hossen, Md Habibur Rahman, Zhong Chen，2025. Impact of the Holocene climate system on sediment transport and deposition in the lower Bengal Fan: Insights from geochemical records. Palaeogeography, Palaeoclimatology, Palaeoecology 676，113126. (二区SCI，影响因子2.7)

4）Md Hafijur Rahaman Khan, Long Tan, Jianguo Liu*, Ananna Rahman, Yun Huang*, Shengfa Liu, Zhong Chen, 2025. The impact of weathering, iron oxides, and aluminous clays on organic carbon storage and stability in an extensive tropical river system. Catena 258, 109250. (一区SCI，影响因子5.7)

5）Md Hafijur Rahaman Khan, Jianguo Liu*, Yun Huang*, Sui Wan*, Zhong Chen, Ananna Rahman, 2025. The influence of grain size and mineralogical composition of terrestrial material inputs on organic carbon sequestration in the Bengal Fan since the last deglaciation. Global and Planetary Change 248, 104773. (一区SCI，影响因子4.0)

6）Md Hafijur Rahaman Khan, Jianguo Liu*, Yun Huang*, Zhong Chen, Ananna Rahman, 2024. The role of active channels in sediment transport to the Bengal Fan and their implications for climate and sediment source changes since 16 ka. Quaternary Science Reviews 345, 109024. (一区SCI，影响因子3.2)

7）Md Hafijur Rahaman Khan, Jianguo Liu*, Ananna Rahman, Yun Huang*, Long Tan, Shengfa Liu, Zhong Chen, 2024. Sources and transport of organic matter in the Ganges-Brahmaputra-Meghna River system of Bengal Basin, Bangladesh. Marine Pollution Bulletin 208, 116973. (二区SCI，影响因子5.30)

8）Long Tan, Jianguo Liu*, Yun Huang*, Rong Xiang, Shengfa Liu, Hui Zhang, Jingrui Li, Linghui Yu, Xuefa Shi, 2023. Chemical weathering in the Himalayan system in response to the evolution of the Indian summer monsoon since 37 ka. Palaeogeography, Palaeoclimatology, Palaeoecology 619, 111559. (二区top SCI，影响因子3.565)

9）谭龙，刘建国*，黄云，Md Hafijur Rahaman Khan，徐政，刘升发，石学法，2023. 孟加拉湾中部沉积物地球化学特征及其古海洋学意义. 矿物岩石地球化学通报 42(4)，776-785.

10）Xudong Xu, Jianguo Liu*, Yun Huang*, Lanlan Zhang, Liang Yi, Shengfa Liu, Yiping Yang, Li Cao, Long Tan, 2022. An Intertropical Convergence Zone shift controlled the terrestrial material supply on the Ninetyeast Ridge. Climate of the Past 18, 1369-1384. (二区SCI，影响因子4.295)

11）Jianguo Liu*, Li Cao, Weihai Xu, Gang Li, Rong Xiang, Xiang Su, Yun Luo, Jun Cheng, Xudong Xu, Zhongxian Zhao, Wen Yan*, 2022. Formation and development of coral reefs in the South China Sea. Palaeogeography, Palaeoclimatology, Palaeoecology 594, 110957. (二区top SCI，影响因子3.482)

12）Li Cao, Jianguo Liu*, Xudong Xu, Yansong Qiao, Md Hafijur Rahaman Khan, Long Tan, 2021. The influence of mesoscale eddies on sedimentary processes in the western South China Sea since 32 kyr BP. Marine Geology 441, 106621. (二区SCI，影响因子3.548)

13）Yansong Qiao, Jianguo Liu*, Li Cao, Md Hafijur Rahaman Khan, Xudong Xu, Long Tan, 2021. Contribution of continuously stable sediment input to the formation of the Pearl River delta since the middle Holocene. Quaternary International 598, 78-69. (三区SCI，影响因子2.130)

1. 2019年参与“亚洲大陆边缘底质调查研究与发现”获得海洋工程科学技术奖一等奖

2. 2024年参与“印度洋-太平洋交汇区海洋底质系统调查与理论创新”获得自然资源科学技术奖科技进步奖一等奖。

3. 2024年参与“印度洋-太平洋交汇区沉积物“源-汇”过程与古气候演化”获得山东省海洋科技创新奖一等奖。