全球变化下九龙江河流-河口系统营养盐循环过程、通量与效应

陈能汪. 全球变化下九龙江河流-河口系统营养盐循环过程、通量与效应[J]. 海洋地质与第四纪地质, 2018, 38(1): 23-31. doi: 10.16562/j.cnki.0256-1492.2018.01.003
引用本文: 陈能汪. 全球变化下九龙江河流-河口系统营养盐循环过程、通量与效应[J]. 海洋地质与第四纪地质, 2018, 38(1): 23-31. doi: 10.16562/j.cnki.0256-1492.2018.01.003
CHEN Nengwang. Nutrient cycling processes, fluxes and effects in the Jiulong river-estuary system under global change[J]. Marine Geology & Quaternary Geology, 2018, 38(1): 23-31. doi: 10.16562/j.cnki.0256-1492.2018.01.003
Citation: CHEN Nengwang. Nutrient cycling processes, fluxes and effects in the Jiulong river-estuary system under global change[J]. Marine Geology & Quaternary Geology, 2018, 38(1): 23-31. doi: 10.16562/j.cnki.0256-1492.2018.01.003

全球变化下九龙江河流-河口系统营养盐循环过程、通量与效应

  • 基金项目:
    国家自然科学基金“亚热带暴雨事件的河海界面生物地球化学响应”(41376082);国家自然科学基金“亚热带典型河流-河口系统氮的反硝化过程与调控”(41076042);国家自然科学基金“亚热带河流-河口界面氨氮污染转运的主控过程”(41676098);NSFC国际(地区)重大合作项目“九龙江流域-河口-近海系统耦合变动及环境生态效应”(40810069004);福建省自然科学基金“九龙江河流-河口界面无机磷和铵氮转化及其与颗粒物的关系”(2016J01197);中央高校基本科研业务费专项资金“海陆界面水动力、颗粒物与营养盐耦合”(20720160120);中央高校基本科研业务费专项资金“梯级电站库区群甲藻水华爆发的‘空间级联反应’机制”(2012121053)
详细信息
    作者简介: 陈能汪(1976—),男,教授,主要从事环境生物地球化学研究,E-mail:nwchen@xmu.edu.cn
  • 中图分类号: X141

  • 周立君编辑

Nutrient cycling processes, fluxes and effects in the Jiulong river-estuary system under global change

  • 河流-河口系统是陆地与海洋物质循环的重要通道。人类活动和气候变化已显著改变营养盐循环并产生一系列生态环境效应(富营养化、有害藻华、缺氧、酸化等)。本文基于现场观测、实验模拟和模型分析结果,总结亚热带中小型河流——九龙江河流-河口系统的营养盐(氮、磷、硅)含量和通量的长期变化及主控因素、水体反硝化作用、梯级电站水库对营养盐的滞留、气候变化(暴雨事件、升温)影响营养盐输送与循环等方面的研究进展,讨论营养盐变化的潜在生态环境效应。与大型河流相比,中小型河流对人类活动与气候变化的干扰更为敏感。最后提出全球变化下流域-近海生物地球化学过程研究的若干重点方向:(1)在不同时空尺度上捕捉营养盐变化信号,基于多学科交叉与综合研究,揭示复杂的营养盐循环过程与驱动机制。(2)评估中小型河流的独特性及其对全球或区域尺度气候与环境变化的影响。(3)深入研究河流水坝滞留、滨海湿地净化对近海生态系统的影响。

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  • 图 1  九龙江流域氮源结构及其对河流入海通量的贡献变化(1980s—2000s)[18]

    Figure 1. 

    图 2  九龙江河流-河口系统N2、N2O净增量与水-气释放通量[22, 23]

    Figure 2. 

    图 3  全球变化下流域-河口-近海营养盐与碳循环过程及生态环境效应概念图

    Figure 3. 

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出版历程
收稿日期:  2017-05-31
修回日期:  2017-12-20
刊出日期:  2018-02-28

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