Potential management practices of saltwater intrusion impacts on soil health and water quality: a review

Bayabil, Haimanote K.; Li, Yuncong; Tong, Zhaohui; Gao, Bin

doi:10.2166/wcc.2020.013

Cited by 14 publications

(5 citation statements)

References 109 publications

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“…Climate change can affect both groundwater content and recharge, which can threaten water availability for rural communities and cities 45,46,47 . The combined changes of precipitation and temperature patterns discussed above reduced surface soil moisture throughout South America (Fig.…”

Section: Soil Wetness and Runoff Changesmentioning

confidence: 99%

Amazon savannization and climate change are projected to increase dry season length and heat waves over Brazil

Bottino,

Nobre,

Giarolla

et al. 2023

Preprint

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Land use and atmospheric composition drivers of climate change can interact to affect both local and remote precipitation and temperature regimes. In this article, we investigate the impacts of Amazon savannization and climate change in a global coupled ocean-atmosphere model simulation. We find that both Amazon land use change and atmospheric radiative forcing enlarge the dry season and reduce annual rainfall over most of South America; with the land use driver reinforcing the drying effects of global climate change not only over the Amazon, but also the southern Brazil states. The combined effects of land use and climate change resulted in a mean annual rainfall reduction of 44% and dry season length increase of 69%, when averaged over the Amazon basin, relative to the control run. Modulation of inland moisture transport due to Amazon savannization shows the largest signal to explain the rainfall reduction and dry season length increase throughout Brazil. Temperature wise, the combined effects of savannization and global warming resulted in maximum daily temperature anomalies, reaching values of up to 14 °C above the current climatic conditions over the Amazon. Also, as a consequence of both climate drivers, both soil moisture and surface runoff decrease over most of the country, suggesting cascading negative future impacts on both agriculture production and hydroelectricity power plants generation.

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Section: Soil Wetness and Runoff Changesmentioning

confidence: 99%

Amazon savannization and climate change are projected to increase dry season length and heat waves over Brazil

Bottino,

Nobre,

Giarolla

et al. 2023

Preprint

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“…Current estimates state that 7% of the total world land area (1.1 × 109 ha) is affected by salinization (Bayabil et al, 2021). Several environmental/anthropogenic factors cause an increase in soil salinity.…”

Section: Effect Of Salinity On Plant-microbe Interactionmentioning

confidence: 99%

“…However, insufficient precipitation prevents the salts' leaching, leading to the accumulation of soluble salt in the rhizosphere (Shrivastava and Kumar, 2015). Besides, saltwater intrusion through surface or groundwater connections can significantly influence soil salinity (Bayabil et al, 2021). Salinity stress in soil arises from the disruption of the soil's ionic balance due to excess cations like Na + , Ca 2+ , K + , and anions like Cl − , NO 3 − .…”

Section: Effect Of Salinity On Plant-microbe Interactionmentioning

confidence: 99%

Impact of key parameters involved with plant-microbe interaction in context to global climate change

Shree

Unnikrishnan²,

Bhushan³

2022

Front. Microbiol.

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Anthropogenic activities have a critical influence on climate change that directly or indirectly impacts plant and microbial diversity on our planet. Due to climate change, there is an increase in the intensity and frequency of extreme environmental events such as temperature rise, drought, and precipitation. The increase in greenhouse gas emissions such as CO2, CH4, NOx, water vapor, increase in global temperature, and change in rainfall patterns have impacted soil–plant-microbe interactions, which poses a serious threat to food security. Microbes in the soil play an essential role in plants’ resilience to abiotic and biotic stressors. The soil microbial communities are sensitive and responsive to these stressors. Therefore, a systemic approach to climate adaptation will be needed which acknowledges the multidimensional nature of plant-microbe-environment interactions. In the last two scores of years, there has been an enhancement in the understanding of plant’s response to microbes at physiological, biochemical, and molecular levels due to the availability of techniques and tools. This review highlights some of the critical factors influencing plant-microbe interactions under stress. The association and response of microbe and plants as a result of several stresses such as temperature, salinity, metal toxicity, and greenhouse gases are also depicted. New tools to study the molecular complexity of these interactions, such as genomic and sequencing approaches, which provide researchers greater accuracy, reproducibility, and flexibility for exploring plant-microbe–environment interactions under a changing climate, are also discussed in the review, which will be helpful in the development of resistant crops/plants in present and future.

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“…Techniques like drip irrigation, precision agriculture, salt-tolerant crops, and gypsum can help manage these problems [ 21 , 22 ]. A multi-pronged approach involving climate change, innovative technologies, and sustainable land management practices is needed to address these challenges [ 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Elucidating Amendment Resources for Reclaiming Efficacy of Sodic Soils around Abaya and Chamo Lakes, South Ethiopia Rift Valley

Walche,

Haile,

Kiflu

et al. 2024

Toxics

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Background: Sodic soils are harmful to agricultural and natural environments in Ethiopia’s semi-arid and arid regions, leading to soil degradation and reduced productivity. This study investigated how amendment resources could help improve the chemical properties of sodic soils around the Abaya and Chamo Lakes in the South Ethiopia Rift Valley. Methods: A factorial experiment was conducted to study the effects of gypsum (GYP) and farmyard manure (FYM) on sodic soil reclamation. The experiment had four levels of GYP (0, 50, 100, and 150%) and four levels of FYM (0, 10, 20, and 30 tons ha−1), with three replications. The pots were incubated for three months and leached for one month, after which soil samples were collected and analyzed for chemical properties. ANOVA was performed to determine the optimal amendment level for sodic soil reclamation. Results: The study found that applying 10 ton FYM ha−1 and gypsum at 100% gypsum required (GR) rate resulted in a 99.8% decrease in exchangeable sodium percentages (ESP) compared to untreated composite sodic soil and a 1.31% reduction over the control (GYP 0% + FYM 0 ton ha−1). As a result, this leads to a decrease in soil electrical conductivity, exchangeable sodium (Ex. Na), and ESP values. The results were confirmed by the LSD test at 0.05. It is fascinating to see how different treatments can have such a significant impact on soil properties. The prediction models indicate that ESP’s sodic soil treatment effect (R2 = 0.95) determines the optimal amendment level for displacing Ex. Na from the exchange site. The best estimator models for ESP using sodic soil treatment levels were ESP = 1.65–0.33 GYP for sole gypsum application and ESP = 1.65–0.33 GYP + 0.28 FYM for combined GYP and FYM application, respectively. Conclusion: The study found that combined GYP and FYM applications reduced ESP to less than 10% in agriculture, but further research is needed to determine their effectiveness at the field level.

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Potential management practices of saltwater intrusion impacts on soil health and water quality: a review

Cited by 14 publications

References 109 publications

Amazon savannization and climate change are projected to increase dry season length and heat waves over Brazil

Amazon savannization and climate change are projected to increase dry season length and heat waves over Brazil

Impact of key parameters involved with plant-microbe interaction in context to global climate change

Elucidating Amendment Resources for Reclaiming Efficacy of Sodic Soils around Abaya and Chamo Lakes, South Ethiopia Rift Valley

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