Files and links (2)
Published (Version of record)CC BY V4.0, Open Access
Published (Version of record)CC BY V4.0, Open
Journal article
Surface Water and Groundwater Interactions in Salt Marshes and Their Impact on Plant Ecology and Coastal Biogeochemistry
Reviews of Geophysics, Vol.60(1), pp.1-54
03/2022
Metrics
21 File views/ downloads
13 Record Views
UN Sustainable Development Goals (SDGs)
This output has contributed to the advancement of the following goals:
Source: InCites
Abstract
Salt marshes are highly productive intertidal wetlands providing important ecological services for maintaining coastal biodiversity, buffering against oceanic storms, and acting as efficient carbon sinks. However, about half of these wetlands have been lost globally due to human activities and climate change. Inundated periodically by tidal water, salt marshes are subjected to strong surface water and groundwater interactions, which affect marsh plant growth and biogeochemical exchange with coastal water. This paper reviews the state of knowledge and current approaches to quantifying marsh surface water and groundwater interactions with a focus on porewater flow and associated soil conditions in connection with plant zonation as well as carbon, nutrients, and greenhouse gas fluxes. Porewater flow and solute transport in salt marshes are primarily driven by tides with moderate regulation by rainfall, evapotranspiration and sea level rise. Tidal fluctuations play a key role in plant zonation through alteration of soil aeration and salt transport, and drive the export of significant fluxes of carbon and nutrients to coastal water. Despite recent progress, major knowledge gaps remain. Previous studies focused on flows in creek-perpendicular marsh sections and overlooked multi-scale 3D behaviors. Understanding of marsh ecological-hydrological links under combined influences of different forcing factors and boundary disturbances is lacking. Variations of surface water and groundwater temperatures affect porewater flow, soil conditions and biogeochemical exchanges, but the extent and underlying mechanisms remain unknown. We need to fill these knowledge gaps to advance understanding of salt marshes and thus enhance our ability to protect and restore them.
Details
- Title
- Surface Water and Groundwater Interactions in Salt Marshes and Their Impact on Plant Ecology and Coastal Biogeochemistry
- Creators
- Pei Xin - Hohai UniversityAlicia Wilson - University of South CarolinaChengji Shen - Hohai UniversityZhenming Ge - East China Normal UniversityKevan B Moffett - Washington State University VancouverIsaac R Santos - University of GothenburgXiaogang Chen - Westlake UniversityXinghua Xu - Hohai UniversityYvonne Y. Y Yau - University of GothenburgWillard Moore - University of South CarolinaLing Li - Westlake UniversityD. A Barry - École Polytechnique Fédérale de Lausanne
- Publication Details
- Reviews of Geophysics, Vol.60(1), pp.1-54
- Publisher
- John Wiley & Sons, Inc.
- Number of pages
- 54
- Grant note
- National Natural Science Foundation of China. Grant Numbers: U2040204, 42141016 Natural Science Foundation of Jiangsu Province. Grant Number: BK20200020
- Identifiers
- 991013004769502368
- Copyright
- © 2022. The Authors. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
- Academic Unit
- Faculty of Science and Engineering; National Marine Science Centre; Science
- Language
- English
- Resource Type
- Journal article