郑珍珍
副研究员(南海海洋资源利用国家重点实验室),硕士生导师
个人简介
厦门大学海洋化学专业博士。科研方面主要运用氮稳定同位素手段,系统地研究河口、近海和开阔大洋典型水域的氮过程对环境变迁(暖化,酸化,缺氧....)的响应。参与国家自然科学重大研究计划重点支持项目1项,国家自然科学基金青年项目2项,发表SCI论文10多篇(其中以第一作者在Nature Communications 期刊上发表论文1篇)。
学术成果
主要从事典型水域氮循环过程对未来环境变迁的响应,主要创新成果如下:
(1)利用人工标记同位素示踪技术,发现在底物充足的环境下, 全球增温会刺激富营养盐系统的硝化速率,且在不同的季节表现出一致的温度敏感性。
(2)通过15N 同位素加标方法,探讨不同营养盐水平下氨氧化的温度敏感性,发现在不同营养盐水平下氨氧化速率对温度的响应不同。 从河口到近岸再到海盆,随着底物铵浓度降低,氨氧化速率最适宜温度(Topt) 伴随下降, 以至于暖化对近岸和开阔大洋氨氧化速率产生截然不同的影响。 搭配现场实验数据结合模式模拟, 预测到 2100 年,当海水温度增加 4℃,近岸海区氨氧化速率将升高 4.5% ,而开阔大洋氨氧化速率将降低 13% 。
(3)在陆海关键带界面上,定量不同温度条件下沉积物中反硝化、厌氧氨氧化和N2O产生过程的潜在速率,评估其温度敏感性,发现反硝化与厌氧氨氧化过程的Topt与原位环境温度的差异随纬度降低而降低,尤其在低纬度区域,原位环境温度逼近反硝化过程的Topt,甚至已经超过厌氧氨氧化过程的Topt, 因此, 未来全球变暖将可能抑制沉积物厌氧氨氧化过程,促进反硝化过程,进一步导致更多的氮移除以N2O形式排放,从而形成正的气候反馈。
代表论文
1.Zhen-Zhen Zheng, Li-Wei Zheng, Min Nina Xu, Ehui Tan, David A. Hutchins, Wenchao Deng, Yao Zhang, Dalin Shi, Minhan Dai, Shuh-Ji Kao. Substrate regulation leads to differential responses of microbial ammonia-oxidizing communities to ocean warming.Nature communications, 2020, 11(1): 1-10. (1区,IF:12.12)
2. Li-Wei Zheng, Dawei Li, Xiaodong Ding, Tsung‐Yu Lee,Zhenzhen Zheng, Fuh‐Kwo Shiah, Xufeng Zheng, Ting‐Chang Hsu, Jr‐Chuan Huang, and Shuh‐Ji Kao. Isotope Constraints on the Sources of Particulate Organic Carbon in a Subtropical Deep Reservoir.Journal of Geophysical Research: Biogeosciences,2020, 125, e2019JG005240.(二区,IF= 3.621)
3. Ehui Tan, Wenbin Zou,Zhenzhen Zheng,Xiuli Yan, Moge Du, Ting-Chang Hsu, Li Tian, Jack J. Middelburg, Thomas W. Trull , Shuh-ji Kao. Warming stimulates sediment denitrification at the expense of anaerobic ammonium oxidation.Nature Climate Change, 2020, 10(4): 349-355. (1区,IF:20.89)
4. Ehui Tan, Wenbin Zou, Xinlei Jiang, Xianhui Wan, Ting-Chang Hsu,Zhenzhen Zheng, Ling Chen, Min Xu, Minhan Dai, Shuh-ji Kao. Organic matter decomposition sustains sedimentary nitrogen loss in the Pearl River Estuary, China.Science of the Total Environment,2019, 648: 508-517.(1区,IF:6.55)
5. Xiuli Yan, Xianhui Sean Wan, Li Liu, Min Nina Xu, Ehui Tan,Zhenzhen Zheng, Wenbin Zou, Li Tian, Da‐Wei Li, Thomas W. Trull, and ShuhJi Kao. Biogeochemical Dynamics in a Eutrophic Tidal Estuary Revealed by Isotopic Compositions of Multiple Nitrogen Species,Journal of Geophysical Research: Biogeosciences,2019, 124: 1849-64. (2区,IF:3.41)
6. Min Nina Xu, Weijie Zhang, Yifan Zhu, Li Liu,Zhenzhen Zheng, Xianhui Sean Wan, Wei Qian, Minhan Dai, Jianping Gan, David A. Hutchins, Shuh-Ji Kao. Enhanced ammonia oxidation caused by lateral kuroshio intrusion in the boundary zone of the Northern South China Sea.Geophysical Research Letters, 2018, 45(13): 6585-6593. (一区,IF= 4.497)
7.Zhen-Zhen Zheng, Xianhui Wan, Min Nina Xu, Silver Sung-Yun Hsiao, Yao Zhang, Li-Wei Zheng, Yanhua Wu, Wenbin Zou, Shuh-Ji Kao. Effects of temperature and particles on nitrification in a eutrophic coastal bay in southern China,Journal of Geophysical Research:Biogeosicences, 2017, 122(9): 2325-2337. (2区,IF:3.41)
8. Li-Wei Zheng, Xiaodong Ding, James T Liu, Dawei Li, Tsung‐Yu Lee, Xufeng Zheng,Zhenzhen Zheng, Min Nina Xu, Minhan Dai , Shuh-Ji Kao. Isotopic evidence for the influence of typhoons and submarine canyons on the sourcing and transport behavior of biospheric organic carbon to the deep sea.Earth and Planetary Science Letters, 2017,465, 103-111. (一区,IF= 4.824)
9. Min Nina Xu, Yanhua Wu, Li Wei Zheng,Zhenzhen Zheng, Huade Zhao, Edward A. Laws, Shuh-Ji Kao. Quantification of multiple simultaneously occurring nitrogen flows in the euphotic ocean.Biogeosciences, 2017, 14(4): 1021(二区,IF= 3.48)
招生专业
海洋生物学(学硕),渔业(专硕)
办公室地点
南海海洋资源利用国家重点实验室825
联系方式
电子邮箱:zzz@hainanu.edu.cn