Mud in the city: Effects of freshwater salinization on inland urban wetland nitrogen and phosphorus availability and export
Mud in the city: Effects of freshwater salinization on inland urban wetland nitrogen and phosphorus availability and export
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DOI：
10.1002/lol2.10273
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发表时间：
2022-08
影响因子：
7.8
通讯作者：
Lauren E. Kinsman-Costello;E. Bean;Audrey Goeckner;Jeffrey W. Matthews;M. O’Driscoll;M. Palta;A. Peralta;A. J. Reisinger;Gabriela Reyes;A. Smyth;Marie L. Stofan
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作者：
Lauren E. Kinsman-Costello;E. Bean;Audrey Goeckner;Jeffrey W. Matthews;M. O’Driscoll;M. Palta;A. Peralta;A. J. Reisinger;Gabriela Reyes;A. Smyth;Marie L. Stofan
在人类活动频繁的流域，盐渍化和富营养化现象普遍存在。尽管已知的影响，淡水盐碱化综合征（FSS）的生物体，我们表现出一个明显的知识差距，FSS如何改变湿地生态地球化学。大多数评估FSS和海洋地球化学的实验都与沿海盐水入侵有关。为数不多的内陆湿地研究大多以氯化钠的形式添加盐。单独的氯化钠并不能反映内陆盐渍化的离子组成，它来自异质来源，产生时空可变的离子混合物。我们开发的机制假说如何升高的离子强度和不断变化的离子组成改变城市湿地沉积物生物地球化学，与预测，通过一套相关的直接和间接的过程，FSS减少营养物质的去除能力。我们建议，未来的努力专门调查内陆城市湿地，一类湿地严重依赖于其生物地球化学处理能力，可能是受盐碱化影响最大的。
Salinization and eutrophication are nearly ubiquitous in watersheds with human activity. Despite the known impacts of the freshwater salinization syndrome (FSS) to organisms, we demonstrate a pronounced knowledge gap on how FSS alters wetland biogeochemistry. Most experiments assessing FSS and biogeochemistry pertain to coastal saltwater intrusion. The few inland wetland studies mostly add salt as sodium chloride. Sodium chloride alone does not reflect the ionic composition of inland salinization, which derives from heterogeneous sources, producing spatially and temporally variable ionic mixtures. We develop mechanistic hypotheses for how elevated ionic strength and changing ionic composition alter urban wetland sediment biogeochemistry, with the prediction that FSS diminishes nutrient removal capacity via a suite of related direct and indirect processes. We propose that future efforts specifically investigate inland urban wetlands, a category of wetland heavily relied on for its biogeochemical processing ability that is likely to be among the most impacted by salinization.