globalchange  > 气候变化与战略
DOI: 10.5194/hess-24-3557-2020
论文题名:
Understanding coastal wetland conditions and futures by closing their hydrologic balance: The case of the Gialova lagoon; Greece
作者: Manzoni S.; Maneas G.; Scaini A.; Psiloglou B.E.; Destouni G.; Lyon S.W.
刊名: Hydrology and Earth System Sciences
ISSN: 1027-5606
出版年: 2020
卷: 24, 期:7
起始页码: 3557
结束页码: 3571
语种: 英语
Scopus关键词: Ecosystems ; Evaporation ; Flow of water ; Groundwater ; Lakes ; Wetlands ; Ecological functions ; Evaporative demands ; Fresh water resources ; Hydrologic connectivity ; Mediterranean region ; Restoration strategies ; Seasonal fluctuations ; Water balance components ; Saline water ; coastal wetland ; freshwater input ; precipitation (climatology) ; seasonal variation ; water availability ; water budget ; Gialova Lagoon ; Greece ; Mediterranean Region ; Messenia ; Peloponnisos
英文摘要: Coastal wetlands and lagoons are under pressure due to competing demands for freshwater resources and climatic changes, which may increase salinity and cause a loss of ecological functions. These pressures are particularly high in Mediterranean regions with high evaporative demand compared to precipitation. To manage such wetlands and maximize their provision of ecosystem services, their hydrologic balance must be quantified. However, multiple channels, diffuse surface water exchanges, and diverse groundwater pathways complicate the quantification of different water balance components. To overcome this difficulty, we developed a mass balance approach based on coupled water and salt balance equations to estimate currently unknown water exchange fluxes through the Gialova lagoon, southwestern Peloponnese, Greece. Our approach facilitates quantification of both saline and freshwater exchange fluxes, using measured precipitation, water depth and salinity, and estimated evaporation rates over a study period of 2 years (2016-2017). While water exchanges were dominated by evaporation and saline water inputs from the sea during the summer, precipitation and freshwater inputs were more important during the winter. About 40% and 60% of the freshwater inputs were from precipitation and lateral freshwater flows, respectively. Approximately 70% of the outputs was due to evaporation, with the remaining 30% being water flow from the lagoon to the sea. Under future drier and warmer conditions, salinity in the lagoon is expected to increase, unless freshwater inputs are enhanced by restoring hydrologic connectivity between the lagoon and the surrounding freshwater bodies. This restoration strategy would be fundamental to stabilizing the current wide seasonal fluctuations in salinity and maintain ecosystem functionality but could be challenging to implement due to expected reductions in water availability in the freshwater bodies supporting the lagoon.. © Author(s) 2020.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/162641
Appears in Collections:气候变化与战略

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作者单位: Manzoni, S., Department of Physical Geography, Stockholm University, Stockholm, 10691, Sweden, Bolin Centre for Climate Research, Stockholm University, Stockholm, 10691, Sweden; Maneas, G., Department of Physical Geography, Stockholm University, Stockholm, 10691, Sweden, Navarino Environmental Observatory, Messinia, 24001, Greece; Scaini, A., Department of Physical Geography, Stockholm University, Stockholm, 10691, Sweden, Bolin Centre for Climate Research, Stockholm University, Stockholm, 10691, Sweden; Psiloglou, B.E., Institute for Environmental Research and Sustainable Development, National Observatory of Athens, Athens, 15236, Greece; Destouni, G., Department of Physical Geography, Stockholm University, Stockholm, 10691, Sweden, Bolin Centre for Climate Research, Stockholm University, Stockholm, 10691, Sweden; Lyon, S.W., Department of Physical Geography, Stockholm University, Stockholm, 10691, Sweden, Bolin Centre for Climate Research, Stockholm University, Stockholm, 10691, Sweden, Nature Conservancy, Delmont, NJ 08314, United States, School of Environment and Natural Resources, Ohio State University, Columbus, OH 43210, United States

Recommended Citation:
Manzoni S.,Maneas G.,Scaini A.,et al. Understanding coastal wetland conditions and futures by closing their hydrologic balance: The case of the Gialova lagoon; Greece[J]. Hydrology and Earth System Sciences,2020-01-01,24(7)
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