The Invisible Flood: The Chemistry, Ecology, and Social Implications of Coastal Saltwater Intrusion
The Invisible Flood: The Chemistry, Ecology, and Social Implications of Coastal Saltwater Intrusion
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DOI：
10.1093/biosci/biz027
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发表时间：
2019-05-01
期刊：
影响因子：
10.1
通讯作者：
Weston, Nathaniel B.
中科院分区：
文献类型：
--
作者：
Tully, Kate;Gedan, Keryn;Weston, Nathaniel B.
咸水入侵是海平面上升的前沿，先于潮汐淹没，但其咸味特征却留在了遥远的内陆。随着气候变化，咸水正在向陆地转移到以前没有经历过或适应盐度的地区，导致生物地球化学、生态和人类土地利用发生新的转变。我们探讨这些变化及其对沿海生态系统气候适应的影响。生物地球化学变化，包括离子强度的增加、硫化和碱化，会产生连锁生态后果，例如高地森林退缩、淡水湿地转变、养分动员和农业生产力下降。我们探讨了应对这些变化的土地管理决策之间的权衡，以及公共政策应如何塑造沿海地区的社会生态转型。了解咸水入侵造成的转变以及如何管理它们对于促进沿海恢复能力至关重要。
Saltwater intrusion is the leading edge of sea-level rise, preceding tidal inundation, but leaving its salty signature far inland. With climate change, saltwater is shifting landward into regions that previously have not experienced or adapted to salinity, leading to novel transitions in biogeochemistry, ecology, and human land uses. We explore these changes and their implications for climate adaptation in coastal ecosystems. Biogeochemical changes, including increases in ionic strength, sulfidation, and alkalinization, have cascading ecological consequences such as upland forest retreat, conversion of freshwater wetlands, nutrient mobilization, and declines in agricultural productivity. We explore the trade-offs among land management decisions in response to these changes and how public policy should shape socioecological transitions in the coastal zone. Understanding transitions resulting from saltwater intrusion-and how to manage them-is vital for promoting coastal resilience.