Driving mechanisms of nitrogen transport and transformation in lacustrine wetlands
Driving mechanisms of nitrogen transport and transformation in lacustrine wetlands
复制标题
湖泊湿地氮素迁移转化驱动机制
DOI：
10.1007/s11430-015-5230-3
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发表时间：
2016-02
影响因子：
5.7
通讯作者：
Shen XinPing
中科院分区：
文献类型：
--
作者：
Zhao Shan;Zhou NianQing;Shen XinPing
氮(N)作为所有生物蛋白质和遗传物质的重要组成部分，是控制湖泊湿地动态、生物多样性和功能的主要限制因子之一，在湖泊湿地中发生着强烈的氮生物地球化学活动。由于各种人类活动，包括工业、农业活动和城市化，湿地生态系统中的活性氮负荷增加了一倍。湖泊湿地氮运移转化的主要驱动机制分为推力和拉力。地貌、湿地年龄、氮浓度和温度是主要的推力（被动力）；而地下水位变化、氧浓度、其他元素有效性、氧化还原电位（Eh）和pH以及微生物是主要的拉力（活性力）。反应的方向和动能由拉力决定，然后由推力刺激。这两种力分别进行了分析和讨论。在分析驱动机制的基础上，分别从个体、区域和全球尺度提出了湿地氮污染的可能解决方案。进一步的研究需要得到全面了解氮在湿地的运输和转化，并减少过量氮对这种脆弱的生态系统的有害影响。
As an essential component of proteins and genetic material for all organisms, nitrogen (N) is one of the major limiting factors that control the dynamics, biodiversity and functioning of lacustrine wetlands, in which intensified N biogeochemical activities take place. Reactive N loaded into wetland ecosystems has been doubled due to various human activities, including industrial, agricultural activities and urbanization. The main driving mechanisms of N transport and transformation in lacustrine wetlands are categorized to pushing forces and pulling forces in this study. Geomorphology, wetland age, N concentrations, and temperature are the main pushing forces (passive forces); whereas water table variation, oxygen concentration, other elements availability, oxidation-reduction potential (Eh) and pH, and microorganisms are the predominant pulling forces (active forces). The direction and kinetic energy of reactions are determined by pulling forces and then are stimulated by pushing forces. These two types of forces are analyzed and discussed separately. Based on the analysis of driving mechanisms, possible solutions to wetland N pollutions are proposed at individual, regional and global scales, respectively. Additional research needs are addressed to obtain a thorough understanding of N transport and transformations in wetlands and to reduce detrimental impacts of excessive N on such fragile ecosystems.
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影响因子：
8.9
作者：
Jing, SR;Lin, YF
通讯作者：
Lin, YF
影响因子：
64.8
作者：
McLauchlan, Kendra K.;Williams, Joseph J.;Jeffers, Elizabeth S.
通讯作者：
Jeffers, Elizabeth S.
影响因子：
2.5
作者：
H. Wiechmann
通讯作者：
H. Wiechmann
DOI：
10.1007/s11267-006-9103-9
发表时间：
2007-02
期刊：
Water, Air, & Soil Pollution: Focus
影响因子：
--
作者：
B. Emmett
通讯作者：
B. Emmett
影响因子：
2.9
作者：
C. Craft
通讯作者：
C. Craft