Drought Stress Impacts on Plants and Different Approaches to Alleviate Its Adverse Effects

Plants, Journal Year: 2021, Volume and Issue: 10(2), P. 259 - 259

Published: Jan. 28, 2021

Drought stress, being the inevitable factor that exists in various environments without recognizing borders and no clear warning thereby hampering plant biomass production, quality, energy. It is key important environmental stress occurs due to temperature dynamics, light intensity, low rainfall. Despite this, its cumulative, not obvious impact multidimensional nature severely affects morphological, physiological, biochemical molecular attributes with adverse on photosynthetic capacity. Coping water scarcity, plants evolve complex resistance adaptation mechanisms including physiological responses, which differ species level. The sophisticated regularity network improves tolerance are briefly discussed. Growth pattern structural reduction transpiration loss through altering stomatal conductance distribution, leaf rolling, root shoot ratio length increment, accumulation of compatible solutes, enhancement efficiency, osmotic hormonal regulation, delayed senescence strategies adopted by under deficit. Approaches for drought alleviations breeding strategies, genomics perspectives special emphasis omics technology alteration i.e., metabolomics, proteomics, genomics, transcriptomics, glyomics phenomics improve plants. For induction, seed priming, growth hormones, osmoprotectants, silicon (Si), selenium (Se) potassium application worth using conditions In addition, microbes, hydrogel, nanoparticles applications metabolic engineering techniques regulate antioxidant enzymes activity plants, enhancing maintenance cell homeostasis ameliorates effects great potential agriculture.

Language: Английский

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Observed increasing water constraint on vegetation growth over the last three decades

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

Published: June 18, 2021

Abstract Despite the growing interest in predicting global and regional trends vegetation productivity response to a changing climate, changes water constraint on (i.e., limitations growth) remain poorly understood. Here we conduct comprehensive evaluation of growth extratropical Northern Hemisphere between 1982 2015. We document significant increase over this period. Remarkably divergent were found with deficit areas significantly expanding, surplus shrinking. The constraints associated was also consistent decreasing time scarcity, suggesting stronger susceptibility drought. observed shortened period for areas, exposure humid conditions. These be attributable temperature, solar radiation, precipitation, atmospheric CO 2 . Our findings highlight need more explicit consideration influence under warming climate.

Language: Английский

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Increase in Compound Drought and Heatwaves in a Warming World

Geophysical Research Letters, Journal Year: 2020, Volume and Issue: 48(1)

Published: Dec. 10, 2020

Abstract Compound drought and heatwaves can cause significant damage to the environment, economy, society. In this study, we quantify spatio‐temporal changes in compound heatwave (CDHW) events by integrating weekly self‐calibrated Palmer Drought Severity Index (sc_PDSI) daily maximum temperatures during period 1983 2016. Multiple data products are used examine robustness of sc_PDSI event analysis. The results consistently suggest increases drought‐related affected global land area recent (warmer) periods. Several regions across globe witnessed rise CDHW frequency (one three events/year), duration (2–10 days/year), severity. This increasing pattern is spatially asymmetric, greater amplification observed Northern hemisphere due warming. Furthermore, background aridity influences spatiotemporal evolution events. be applied minimize impacts extreme CDHWs critical geographical regions.

Language: Английский

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Emerging desalination technologies: Current status, challenges and future trends

Desalination, Journal Year: 2021, Volume and Issue: 517, P. 115183 - 115183

Published: July 27, 2021

Language: Английский

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Climate Change and Livestock Production: A Literature Review

Atmosphere, Journal Year: 2022, Volume and Issue: 13(1), P. 140 - 140

Published: Jan. 15, 2022

Globally, the climate is changing, and this has implications for livestock. Climate affects livestock growth rates, milk egg production, reproductive performance, morbidity, mortality, along with feed supply. Simultaneously, a change driver, generating 14.5% of total anthropogenic Greenhouse Gas (GHG) emissions. Herein, we review literature addressing livestock, covering impacts, emissions, adaptation possibilities, mitigation strategies. While existing principally focuses on ruminants, extended scope to include non-ruminants. We found that are affected by do enhance through emissions but there actions can limit effects change. also suggest some research directions especially find need work in developing country settings. In context change, measures pivotal sustaining growing demand products, often their relevance depends local conditions. Furthermore, key limiting future extent number possible

Language: Английский

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Shifts in regional water availability due to global tree restoration

Nature Geoscience, Journal Year: 2022, Volume and Issue: 15(5), P. 363 - 368

Published: May 1, 2022

Abstract Tree restoration is an effective way to store atmospheric carbon and mitigate climate change. However, large-scale tree-cover expansion has long been known increase evaporation, leading reduced local water availability streamflow. More recent studies suggest that increased precipitation, through enhanced moisture recycling, can offset this effect. Here we calculate how 900 million hectares of global tree would impact evaporation precipitation using ensemble data-driven Budyko models the UTrack recycling dataset. We show combined effects directly indirectly create complex patterns shifting availability. Large-scale by up 6% in some regions, while decreasing it 38% others. There a divergent on large river basins: rivers could lose their streamflow due for other rivers, greater counterbalanced more recycling. Several so-called hot spots forest water, including regions are already facing scarcity today. significantly shifts terrestrial fluxes, emphasize future tree-restoration strategies should consider these hydrological effects.

Language: Английский

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Potential for sustainable irrigation expansion in a 3 °C warmer climate

Proceedings of the National Academy of Sciences, Journal Year: 2020, Volume and Issue: 117(47), P. 29526 - 29534

Published: Nov. 9, 2020

Climate change is expected to affect crop production worldwide, particularly in rain-fed agricultural regions. It still unknown how irrigation water needs will a warmer planet and where freshwater be locally available expand without depleting resources. Here, we identify the cropping systems that hold greatest potential for investment expansion because likely suffice demand. Using projections of renewable availability demand under warming scenarios, target regions may sustain climate change. Our results also show global croplands significant sustainable different strategies have potentials. Under 3 °C warming, find soft-path with small monthly storage deficit has irrigated land by 70 million hectares feed 300 more people globally. We hard-path large annual can sustainably up 350 hectares, while producing food 1.4 billion By identifying expanded climate, this work serve as starting point investigating socioeconomic factors guide future research resources toward those communities management institutions most need adapt

Language: Английский

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Compound natural and human disasters: Managing drought and COVID-19 to sustain global agriculture and food sectors

The Science of The Total Environment, Journal Year: 2020, Volume and Issue: 754, P. 142210 - 142210

Published: Sept. 4, 2020

Language: Английский

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Freshwater availability status across countries for human and ecosystem needs

The Science of The Total Environment, Journal Year: 2021, Volume and Issue: 792, P. 148230 - 148230

Published: June 2, 2021

Language: Английский

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Drought self-propagation in drylands due to land–atmosphere feedbacks

Nature Geoscience, Journal Year: 2022, Volume and Issue: 15(4), P. 262 - 268

Published: March 17, 2022

Language: Английский

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