The threat of soil salinity: A European scale review

The Science of The Total Environment, Journal Year: 2016, Volume and Issue: 573, P. 727 - 739

Published: Sept. 2, 2016

Language: Английский

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Biochar soil amendment on alleviation of drought and salt stress in plants: a critical review

Environmental Science and Pollution Research, Journal Year: 2017, Volume and Issue: 24(14), P. 12700 - 12712

Published: April 3, 2017

Language: Английский

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Global predictions of primary soil salinization under changing climate in the 21st century

Nature Communications, Journal Year: 2021, Volume and Issue: 12(1)

Published: Nov. 18, 2021

Soil salinization has become one of the major environmental and socioeconomic issues globally this is expected to be exacerbated further with projected climatic change. Determining how climate change influences dynamics naturally-occurring soil scarcely been addressed due highly complex processes influencing salinization. This paper sets out address long-standing challenge by developing data-driven models capable predicting primary (naturally-occurring) salinity its variations in world's drylands up year 2100 under changing climate. Analysis future predictions made here identifies dryland areas South America, southern western Australia, Mexico, southwest United States, Africa as hotspots. Conversely, we project a decrease northwest Horn Africa, Eastern Europe, Turkmenistan, west Kazakhstan response over same period. Excess salt accumulation root zone causes health, biodiversity food security. Authors used machine learning algorithms predict global scale 21st century.

Language: Английский

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Salinity Is a Key Determinant for Soil Microbial Communities in a Desert Ecosystem

mSystems, Journal Year: 2019, Volume and Issue: 4(1)

Published: Feb. 11, 2019

Soil salinization is a growing environmental problem caused by both natural and human activities. Excessive salinity in soil suppresses growth, decreases species diversity, alters the community composition of plants; however, effect on microbial communities poorly understood. Here, we characterize along gradient Gurbantunggut Desert, Northwestern China. Microbial diversity linearly decreased with increases salinity, dissimilarity significantly increased differences. showed strong dissimilarity, even after controlling for effects spatial distance other variables. phylotypes (n = 270) belonging to Halobacteria, Nitriliruptoria, [Rhodothermi], Gammaproteobacteria, Alphaproteobacteria high-salinity niche preference. Out nine potential phenotypes predicted BugBase, oxygen-related significant relationship content. To explore assembly processes, used null models within-community (nearest-taxon index [NTI]) between-community (βNTI) phylogenetic composition. NTI negative suggesting that was less phylogenetically clustered more-saline soils. βNTI, analogue NTI, deterministic processes have overtaken stochastic across all sites, importance filtering assembly. Taken together, these results suggest desert ecosystem. IMPORTANCE Belowground microorganisms are indispensable components nutrient cycling ecosystems, understanding how they respond essential managing ameliorating salinization. Our sequence-based data revealed increasing certain salt-tolerant positive salinity. Using modeling approach estimate gradient, found imposed selection pressure community, which resulted dominance processes. Studying gradients fundamental ecological ecosystems affected

Language: Английский

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Soil Salinity: A Threat to Global Food Security

Agronomy Journal, Journal Year: 2016, Volume and Issue: 108(6), P. 2189 - 2200

Published: Oct. 6, 2016

Soil salinity is a global issue threatening land productivity, and estimates predict that 50% of all arable will become impacted by 2050. Consequently, it important to have fundamental understanding crop response minimize economic loss improve food security. While an immense amount research has been performed assessing corn ( Zea mays L.) soybean [ Glycine max (L.) Merr.] salinity, there are few, if any, comprehensive reviews compiling previously published literature. This review provides detailed description our current knowledge on the impacts growth development. Both osmotic stress specific ion toxicities with respect addressed. Additionally, potential areas future recommended. Core Ideas Review salinity's effects Impacts discussed. Potential

Language: Английский

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Predicting long-term dynamics of soil salinity and sodicity on a global scale

Proceedings of the National Academy of Sciences, Journal Year: 2020, Volume and Issue: 117(52), P. 33017 - 33027

Published: Dec. 16, 2020

Significance Land degradation due to soil salinization has detrimental impacts on vegetation, crops, and human livelihoods, leading a need for methodologically consistent analysis of the variability different aspects salt-affected soils. However, previous studies salinity issue have been primarily spatial localized, leaving large-scale spatiotemporal variations widely ignored. To address this gap, we present globally validated quantifying long-term (40 y) topsoil at high resolutions using machine-learning techniques. The results significant implications agroecological modelling, land assessment, crop growth simulation, sustainable water management.

Language: Английский

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Soil salinity and its associated effects on soil microorganisms, greenhouse gas emissions, crop yield, biodiversity and desertification: A review

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 843, P. 156946 - 156946

Published: June 26, 2022

Language: Английский

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Unveiling the crucial role of soil microorganisms in carbon cycling: A review

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 909, P. 168627 - 168627

Published: Nov. 17, 2023

Language: Английский

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A meta‐analysis of soil salinization effects on nitrogen pools, cycles and fluxes in coastal ecosystems

Global Change Biology, Journal Year: 2016, Volume and Issue: 23(3), P. 1338 - 1352

Published: July 14, 2016

Abstract Salinity intrusion caused by land subsidence resulting from increasing groundwater abstraction, decreasing river sediment loads and sea level because of climate change has widespread soil salinization in coastal ecosystems. Soil may greatly alter nitrogen (N) cycling However, a comprehensive understanding the effects on ecosystem N pools, processes fluxes is not available for Therefore, we compiled data 551 observations 21 peer‐reviewed papers conducted meta‐analysis experimental 19 variables related to Our results showed that varied across different types salinity levels. increased plant content (18%), NH 4 + (12%) total (210%), although it decreased NO 3 − (2%) microbial biomass (74%). Increasing stimulated 2 O as well hydrological more than threefold, dissolved organic ( DON ) flux (59%). also net mineralization 70%, were observed nitrification, denitrification dissimilatory nitrate reduction ammonium this meta‐analysis. Overall, improves our responses salinization, identifies knowledge gaps highlights urgent need studies agro‐ecosystem immobilization. Additional increases are critical designing sustainable adaptation measures predicted so productivity agro‐ecosystems can be maintained or improved losses pollution natural environment minimized.

Language: Английский

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Effects of salinity on the soil microbial community and soil fertility

Journal of Integrative Agriculture, Journal Year: 2019, Volume and Issue: 18(6), P. 1360 - 1368

Published: June 1, 2019

Saline area is an important reserve resource of arable land, however, the effects soil microorganisms on fertility in saline coastal ecosystems remain poorly understood. The salinity microorganisms, nutrient availabilities and their relationships were studied soils along a gradient. A total 80 samples collected from 16 sites at four levels (non-saline soil, salt content<1 g kg−1; low content=1−2 middle content=2−4 high content>4 kg−1). results showed that increased pH exchangeable Na percent, but decreased organic matter, K, microbial biomass. Both abundance community composition bacteria fungi significantly different between non-saline soils. predominant genera (Planctomyces Archangium, positive for carbon fixation) (Hydropisphaera, efficient lignin degradation) changed with increasing decreasing matter. In summary, abundances bacterial, fungal, arbuscular mycorrhizal communities and, subsequently, affected function ecosystems.

Language: Английский

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