Sea Level Rise and the Dynamics of the Marsh-Upland Boundary
Sea Level Rise and the Dynamics of the Marsh-Upland Boundary
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DOI：
10.3389/fenvs.2019.00025
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发表时间：
2019-02
影响因子：
4.6
通讯作者：
S. Fagherazzi;S. Anisfeld;L. Blum;Emily V. Long;R. Feagin;A. Fernandes;W. S. Kearney;K. Williams
中科院分区：
文献类型：
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作者：
S. Fagherazzi;S. Anisfeld;L. Blum;Emily V. Long;R. Feagin;A. Fernandes;W. S. Kearney;K. Williams
在海平面上升期间，盐沼侵入内陆，侵入低洼森林、农田和郊区。这种海侵是一个复杂的过程，受到罕见的风暴的调节，风暴淹没了高地生态系统，增加了土壤盐度。结果，高地植被被盐生沼泽植物所取代。在这里，我们回顾了调节从高地生态系统到盐沼过渡的主要过程和反馈。目标是提供一个基于过程的框架，能够开发沼泽高地边界动态的定量模型。特别强调了生态棘轮的概念，将海平面上升的压力扰动与风暴的脉冲扰动结合起来。
During sea level rise, salt marshes transgress inland invading low-lying forests, agricultural fields, and suburban areas. This transgression is a complex process regulated by infrequent storms that flood upland ecosystems increasing soil salinity. As a result upland vegetation is replaced by halophyte marsh plants. Here we present a review of the main processes and feedbacks regulating the transition from upland ecosystems to salt marshes. The goal is to provide a process-based framework that enables the development of quantitative models for the dynamics of the marsh-upland boundary. Particular emphasis is given to the concept of ecological ratchet, combining the press disturbance of sea level rise with the pulse disturbance of storms.