Unraveling the Interactions between Flooding Dynamics and Agricultural Productivity in a Changing Climate

Sustainability, Journal Year: 2024, Volume and Issue: 16(14), P. 6141 - 6141

Published: July 18, 2024

Extreme precipitation and flooding frequency associated with global climate change are expected to increase worldwide, major consequences in floodplains areas susceptible flooding. The purpose of this review was examine the effects events on changes soil properties their agricultural production. Flooding is caused by natural anthropogenic factors, can be amplified interactions between rainfall catchments. impacts structure aggregation altering resistance slaking, which occurs when aggregates not strong enough withstand internal stresses rapid water uptake. disruption enhance erosion sediment transport during contribute sedimentation bodies degradation aquatic ecosystems. Total precipitation, flood discharge, total main factors controlling suspended mineral-associated organic matter, dissolved particulate matter loads. Studies conducted paddy rice cultivation show that flooded reduced conditions neutralize pH but reversible upon draining soil. In soil, nitrogen cycling linked decreases oxygen, accumulation ammonium, volatilization ammonia. Ammonium primary form inorganic porewaters. floodplains, nitrate removal enhanced high denitrification intermittent provides necessary anaerobic conditions. soils, reductive dissolution minerals release phosphorus (P) into solution. Phosphorus mobilized events, leading increased availability first weeks waterlogging, generally time. Rainstorms promote subsurface P-enriched particles, colloidal P account for up 64% tile drainage water. Anaerobic microorganisms prevailing utilize alternate electron acceptors, such as nitrate, sulfate, carbon dioxide, energy production decomposition. metabolism leads fermentation by-products, acids, methane, hydrogen sulfide, influencing pH, redox potential, nutrient availability. Soil enzyme activity presence various microbial groups, including Gram+ Gram− bacteria mycorrhizal fungi, affected Waterlogging β-glucosidase acid phosphomonoesterase increases N-acetyl-β-glucosaminidase Since these enzymes control hydrolysis cellulose, phosphomonoesters, chitin, moisture content impact direction magnitude supply oxygen submerged plants limited because its diffusion extremely low, mitochondrial respiration plant tissues. Fermentation only viable pathway plants, which, under prolonged waterlogging conditions, inefficient results death. Seed germination also impaired stress due decreased sugar phytohormone biosynthesis. sensitivity different crops varies significantly across growth stages. Mitigation adaptation strategies, essential management agriculture, resilience through improved practices, amendments rehabilitation techniques, best zero tillage cover crops, development flood-tolerant crop varieties. Technological advances play a crucial role assessing dynamics landscapes. This embarks comprehensive journey existing research unravel intricate interplay production, environment. We synthesize available knowledge address critical gaps understanding, identify methodological challenges, propose future directions.

Language: Английский

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Three hypotheses on changing river flood hazards

Hydrology and earth system sciences, Journal Year: 2022, Volume and Issue: 26(19), P. 5015 - 5033

Published: Oct. 11, 2022

Abstract. There is serious concern that the hazard, or probability, of river floods increasing over time. Starting from narratives are sometimes discussed in public, article addresses three hypotheses. The first suggests land-use changes, such as deforestation, urbanisation and soil compaction by agriculture, increase flood hazards. This review finds effects on particularly pronounced small catchments since permeability plays an important role infiltration at this scale. For regional floods, most extreme events, land use usually not control, areas saturation play a greater runoff generation, which less dependent permeability. second hypothesis hydraulic interventions structures, training, levees dams, structures have greatest impact events medium magnitude, associated with return periods tens to hundreds years, their local. Long-term interactions between humans must be taken into account when predicting future third climate change increases hazard. that, few hectares, hazards may due convective storms. In large catchments, where occur, changes necessarily directly related precipitation, nor they rising air temperatures, but determined seasonal interplay moisture, snow precipitation via generation. Increases decreases been observed worldwide. It concluded significant progress has made recent years understanding use, changing crucial consider all factors risk management communicate them general public nuanced way.

Language: Английский

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A deep learning-based novel approach to generate continuous daily stream nitrate concentration for nitrate data-sparse watersheds

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 878, P. 162930 - 162930

Published: March 18, 2023

Language: Английский

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High temporal resolution urban flood prediction using attention-based LSTM models

Journal of Hydrology, Journal Year: 2023, Volume and Issue: 620, P. 129499 - 129499

Published: April 10, 2023

Language: Английский

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Enhanced machine learning models development for flash flood mapping using geospatial data

Euro-Mediterranean Journal for Environmental Integration, Journal Year: 2024, Volume and Issue: 9(3), P. 1087 - 1107

Published: May 31, 2024

Language: Английский

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Increasing hourly heavy rainfall in Austria reflected in flood changes

Nature, Journal Year: 2025, Volume and Issue: unknown

Published: March 12, 2025

Climate change is expected to increase heavy rainfall with concomitant increases in flooding1. Causes of increased include the higher water-holding capacity a warmer atmosphere and changes atmospheric circulation patterns2, which may translate into future most Europe3. However, gathering evidence on time evolution past has been hampered by data limitations measurement uncertainties, particular for short durations, such as 1 h. Here we show an 8% daily 15% hourly over last four decades analysing new dataset comprising 883 stations Austria from 1900 2023. These are fully consistent between two independent networks occurred after retarding phase 1960 1980. Hourly aligned temperature sensitivity 7% per °C warming, line Clausius–Clapeyron scaling. Daily changes, however, indices little correlation air temperature, suggests bigger role modes than previously thought. The remarkably observed flood about large catchments. similarly small catchments, although stronger (25% decades). adaptation measures management therefore be more pressing rivers draining smaller catchment areas rivers. Long-term precipitation different climatic mechanisms emphasize need adaptation, especially catchments affected rainfall.

Language: Английский

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Flood risk assessment by using an interpretative structural modeling based Bayesian network approach (ISM-BN): An urban-level analysis of Shenzhen, China

Journal of Environmental Management, Journal Year: 2022, Volume and Issue: 329, P. 117040 - 117040

Published: Dec. 17, 2022

Language: Английский

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Assessing Impact of Nature Based Solutions on Peak Flow Using HEC-HMS

Water Resources Management, Journal Year: 2024, Volume and Issue: 38(3), P. 1125 - 1140

Published: Jan. 29, 2024

Language: Английский

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Multivariate Analysis of Rainfall Spatial Distribution and Its Effect on Stormwater Magnitudes

Journal of Hydrologic Engineering, Journal Year: 2024, Volume and Issue: 29(2)

Published: Jan. 29, 2024

The response to flood disasters is of great importance protect people's lives. Proper recognition the factors affecting floods will lead prevention negative consequences. In this study, three types Archimedean copulas, including Clayton, Gumbel, and Frank, have been applied depth duration variables maximum annual precipitation in four rain gauges' data sets (eight variables) throughout primarily urban eastern catchment Tehran, Iran. results indicated that Gumbel copula most suitable function copulas. average rainfalls produced by selected increased up 24% compared with different varieties single-station scenarios. Also, differed 14% difference Finally, volume surface flooding varied between +54% −154% respect As a result, taking into account spatial distribution rainfall significant impact on generation runoff. overall pattern runoff significantly influenced several factors. Firstly, simultaneous gauge stations synthetic runoffs plays crucial role. second factor within catchment, which interpolation technique used. Additionally, routing through channel system also contributes

Language: Английский

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Relationship of Rainfall and Flood Return Periods through Hydrologic and Hydraulic Modeling

Water, Journal Year: 2022, Volume and Issue: 14(22), P. 3618 - 3618

Published: Nov. 10, 2022

In order to examine the relationship between rainfall return periods and flood periods, design storm approach is compared rainfall–runoff continuous simulation frequency analysis approach. The former was based on event-based hydrological simulations, while latter simulations analysis. All were undertaken employing HEC-HMS software. For analysis, Generalized Extreme Value (GEV) probability distribution used. both Type I (Gumbel) GEV theoretical distributions used each other. Flood hazard (inundation depth, flow velocities extent) estimated hydrodynamic HEC-RAS study area Pineios catchment, upstream of Larissa city, Greece. results revealed that assumption equivalent discharge not valid for area. instance, a 50-year period corresponds about 110 years. Even if measurements are available, re-analysis datasets may be alternatively

Language: Английский

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