图3. 河流传输时间/距离效应对流域人为碳入海的调控概念图
研究团队及资助
该论文第一作者为5123导航海洋与地球学院2022届博士毕业生瞿理印,通讯作者为郭卫东教授。共同作者包括加利福尼亚大学戴维斯分校Randy A. Dahlgren教授、中国科学院华南植物园甘淑钗副研究员、5123导航海洋与地球学院硕士生任明星和环境与生态学院陈能汪教授。该研究获得国家自然科学基金面上项目(42276041)的资助。
论文来源及链接
Liyin Qu, Randy A. Dahlgren, Shuchai Gan, Mingxing Ren, Nengwang Chen, Weidong Guo, Spatial variation of anthropogenic disturbances within watersheds determines dissolved organic matter composition exported to oceans, Water Research (2024), doi:10.1016/j.watres.2024.122084
https://www.sciencedirect.com/science/article/pii/S0043135424009849
拓展阅读:
研究团队近年来针对亚热带典型中小河流——闽江及九龙江的有机碳组成与通量的时空变异特征开展了一系列调查研究,旨在深入揭示人类活动(城市化、农业活动、水库建设导致的季节性缺氧等)与气候变化(如极端厄尔尼诺事件)对陆-海界面有机碳的转化与传输、有机碳与无机碳的耦合变化等的调控机制,近年来相关研究成果可查阅以下文章:
1. Qu, L.Y., Wu, Y.F., Li, Y., Stubbins, A., Dahlgren, R. A., Chen, N.W., & Guo, W. D.* (2020). El Niño‐driven dry season flushing enhances dissolved organic matter export from a subtropical watershed. Geophysical Research Letters. doi: 10.1029/2020GL089877.
2. Qu, L.Y., He C., Wu Z.T., Dahlgren R.A., Ren M.X., Li P.H., Shi Q., Li Y., Chen N.W.*, and Guo W.D.* (2022). Hypolimnetic deoxygenation enhanced production and export of recalcitrant dissolved organic matter in a large stratified reservoir. Water Research. doi: 10.1016/j.watres.2022.118537.
3. Wu, Z.T.#, Yu, D.#, Yu, Q.B., Liu, Q., Zhang, M.Z., Dahlgren, R.A., Middelburg, J.J., Qu, L.Y., Li, Q.L., Guo, W.D.*, and Chen, N.W.* (2024). Greenhouse gas emissions (CO2-CH4-N2O) along a large reservoir-downstream river continuum: the role of seasonal hypoxia. Limnology and Oceanography. 69, 1015–1029. doi: 10.1002/lno.12544.
供稿 | 瞿理印 郭卫东
编辑 | 苏颖 朱佳
排版|陈蕾
审核 | 杨进宇 徐鹏 陈向柳 曹知勉