Sea-Level Rise and Saltwater Intrusion: Economic Estimates of Impacts of Nature-Based Mitigation Policies Under Uncertainty

Water, Journal Year: 2025, Volume and Issue: 17(9), P. 1355 - 1355

Published: April 30, 2025

Increased saltwater intrusion likely causes a significant reduction in food production alluvial river deltas worldwide. One of the mitigation measures for is to increase natural flow through irrigation water conservation and land-fallowing policies prevent from moving further inland. However, economic estimates costs such under uncertainty are scant. Herein, we develop an integrated modeling framework estimating by 2050 Mekong Delta. The model combines hydrodynamic, advection-dispersion, statistical, crop yield, models, thus allowing us account risk policies. We found that 95% confidence interval intrusion-impacted area estimated be 186,000–201,000 hectares baseline, 193,000–209,000 sea level rise 22 cm, 204,000–219,000 53 cm scenarios, respectively. To bring back baseline level, 100,000–150,000 currently cultivated rice would need fallowed at least once year. This equivalent annual losses, with 50% chance, ranging $100.03–$176.67 million, implying substantial cost rise-induced even modest scenario. Under scenario, results show widespread adoption alternate wetting drying approximately 300,000 ha needed push level. findings indicate Delta more than not intensify considerably much less predictable, posing greater one most important rice-producing regions world.

Language: Английский

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Insights into roles of biochar on migration and accumulation of cadmium in Spartina alterniflora Loisel. -sediment systems and their microbial effects

Plant Physiology and Biochemistry, Journal Year: 2025, Volume and Issue: 225, P. 109985 - 109985

Published: May 6, 2025

Language: Английский

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Overlooked and extensive ghost forest formation across the US Atlantic coast

Published: May 8, 2025

Rising sea levels have driven widespread coastal tree die-off, forming large swaths of ghost forests. While reports forest loss are accumulating, its true severity and factors determining the underlying mortality risks remain poorly understood. Here, we mapped over 10 million individual dead trees across US Atlantic region – a sea-level rise hotspot using deep learning sub-meter aerial imagery. Our analysis reveals disproportionate pervasive in many previously undocumented hotspots, with 6 concentrated low-lying (< 5 m) forests, primarily by salinization rather than flooding alone. Notably, man-made flood obstructions (roads levees), when present, reduced 44% 77% respectively region. These findings highlight alarming decline forests need for strategic actions to preserve their critical ecosystem services.

Language: Английский

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Hydrometeorological Drivers of the 2023 Louisiana Water Crisis

Geophysical Research Letters, Journal Year: 2024, Volume and Issue: 51(10)

Published: May 20, 2024

Abstract During summer and fall 2023, Louisiana experienced a historic local drought while dry conditions elsewhere in the central US withheld vital runoff from Mississippi River, leading to below‐normal discharge into Gulf of Mexico. Thus, by late October was gripped two super‐imposed water crises: severe saltwater contamination River channel. This study frames development emergency through lens flash using Evaporative Demand Drought Index (EDDI). The EDDI shows south experience during June basin subsequently characterized large expanses high‐percentile August‐September 2023 shortly before intrusion episode along lower River. Over last 15 years, MRB‐wide percentile has oscillated between years‐long elevated depressed states, accounting for 23.7% monthly anomaly near New Orleans.

Language: Английский

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Temporal dynamics of soil salinization due to vertical and lateral saltwater intrusion at an onshore aquaculture farm

Agricultural Water Management, Journal Year: 2024, Volume and Issue: 306, P. 109179 - 109179

Published: Nov. 16, 2024

Language: Английский

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Vegetative nature-based solutions for coastal flood risk management: Benefits, challenges, and uncertainties

Ocean & Coastal Management, Journal Year: 2024, Volume and Issue: 261, P. 107520 - 107520

Published: Dec. 9, 2024

Language: Английский

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Predicting groundwater phosphate levels in coastal multi-aquifers: A geostatistical and data-driven approach

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 953, P. 176024 - 176024

Published: Sept. 4, 2024

Language: Английский

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Standard metrics for characterizing episodic salinization in freshwater systems

Limnology and Oceanography Methods, Journal Year: 2024, Volume and Issue: 22(9), P. 647 - 659

Published: June 27, 2024

Abstract Salinization threatens freshwater resources and freshwater‐dependent wetlands in coastal areas worldwide. Many research efforts focus on gradual or chronic salinization, but the phenomenon is also episodic nature, particularly small streams artificial waterways. In surface waters, salinization events may coincide with storms, droughts, wind tides, other events. A lack of standardized quantitative methods metrics for describing discussing hinders cross‐disciplinary by scientists others to analyze, discuss, make recommendations concerning these Here, we present a set that use statistics which describe flow characteristics rivers as template empirically characterizing We developed quantify duration, magnitude, apply extensive time‐series data from field site North Carolina. then demonstrate utility coupling them ancillary perform an unsupervised classification groups individual their primary meteorological driver. provide simple flexible code needed compute any environment experiencing hopes it will facilitate more approaches quantification study widespread salinization.

Language: Английский

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Impacts of external factors in salinity patterns via numerical modeling along the Scheldt Estuary, Belgium

Journal of Hydrology Regional Studies, Journal Year: 2024, Volume and Issue: 56, P. 102026 - 102026

Published: Oct. 19, 2024

Language: Английский

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