Climate Change and Drought: a Perspective on Drought Indices

Current Climate Change Reports, Journal Year: 2018, Volume and Issue: 4(2), P. 145 - 163

Published: April 23, 2018

Language: Английский

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Impacts of climate change on the livestock food supply chain; a review of the evidence

Global Food Security, Journal Year: 2021, Volume and Issue: 28, P. 100488 - 100488

Published: Jan. 10, 2021

The potential impacts of climate change on current livestock systems worldwide are a major concern, and yet the topic is covered to limited extent in global reports such as ones produced by Intergovernmental Panel Climate Change. In this article, we review risk climate-related along land-based food supply chain. Although quantification net sector beyond reach our understanding, there strong evidence that will be throughout chain, from farm production processing operations, storage, transport, retailing human consumption. risks highly context-specific but expected higher environments already hot have socio-economic institutional resources for adaptation. Large uncertainties remain futures exposure responses interlinked natural climatic changes over time. Consequently, adaptation choices need account wide range possible futures, including those with low probability large consequences.

Language: Английский

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Climate Change and Drought: a Precipitation and Evaporation Perspective

Current Climate Change Reports, Journal Year: 2018, Volume and Issue: 4(3), P. 301 - 312

Published: May 10, 2018

Language: Английский

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Drivers and impacts of changes in China’s drylands

Nature Reviews Earth & Environment, Journal Year: 2021, Volume and Issue: 2(12), P. 858 - 873

Published: Nov. 9, 2021

Language: Английский

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Multifaceted characteristics of dryland aridity changes in a warming world

Nature Reviews Earth & Environment, Journal Year: 2021, Volume and Issue: 2(4), P. 232 - 250

Published: March 9, 2021

Language: Английский

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Projected Impacts of Climate Change on Drought Patterns Over East Africa

Earth s Future, Journal Year: 2020, Volume and Issue: 8(7)

Published: May 26, 2020

Abstract Investigation of the pressing impacts climate change on drought is vital for sustainable societal and ecosystem functioning. The magnitude how much will way droughts would affect society environment are inadequately addressed over East Africa. This study aimed at assessing future changes using an ensemble five Global Climate Models (GCMs) in Coupled Model Intercomparison Project (CMIP5) To this end, characteristics were investigated under Representative Concentration Pathways (RCPs) 2.6, 4.5, 8.5 near term (the 2020s; 2011–2040), midcentury (2050s; 2041–2070), end century (2080s; 2071–2,100). Standardized Precipitation Index (SPI) Precipitation‐Evapotranspiration (SPEI) first compared, SPEI was used measuring as it showed stronger due to its inclusion temperature effects. Drought area Africa likely increase 21st by 16%, 36%, 54% RCP 8.5, respectively, with areas affected extreme increasing more rapidly than severe moderate droughts. Spatially, event, duration, frequency intensity Sudan, Tanzania, Somalia, South but generally decrease Kenya, Uganda, Ethiopian highlands. Results also confirm that follow “dry gets drier wet wetter” paradigm. findings provide important guidance improving identification causes, minimizing enhancing resilience

Language: Английский

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Global desertification vulnerability to climate change and human activities

Land Degradation and Development, Journal Year: 2020, Volume and Issue: 31(11), P. 1380 - 1391

Published: Jan. 18, 2020

Abstract Desertification is the impoverishment of arid, semiarid, and some subhumid ecosystems. The assessment global scale desertification vulnerability to climate change human activity important help decision makers formulate best strategies for land rehabilitation combat in sensitive areas. There no map that considers both activities. main aim this study was construct a new index, index (GDVI), by combining activity, provide another perspective on scale, project its future evolution. Using probability density function GDVI, we classified into four classes: very high, medium, low. results analysis indicated areas around deserts barren have higher risk desertification. Areas with moderate, high accounted 13%, 7%, 9% area, respectively. Among representative concentration pathways (RCPs), RCP8.5 projected area moderate will increase 23% end century. where risks are predicted over time mainly Africa, North America, northern China India.

Language: Английский

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Climate Change and Drought: the Soil Moisture Perspective

Current Climate Change Reports, Journal Year: 2018, Volume and Issue: 4(2), P. 180 - 191

Published: April 21, 2018

Language: Английский

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East Asian Study of Tropospheric Aerosols and their Impact on Regional Clouds, Precipitation, and Climate (EAST‐AIR_CPC)

Journal of Geophysical Research Atmospheres, Journal Year: 2019, Volume and Issue: 124(23), P. 13026 - 13054

Published: Oct. 23, 2019

Abstract Aerosols have significant and complex impacts on regional climate in East Asia. Cloud‐aerosol‐precipitation interactions (CAPI) remain most challenging studies. The quantitative understanding of CAPI requires good knowledge aerosols, ranging from their formation, composition, transport, radiative, hygroscopic, microphysical properties. A comprehensive review is presented here centered the based chiefly, but not limited to, publications special section named EAST‐AIRcpc concerning (1) observations aerosol loading properties, (2) relationships between aerosols meteorological variables affecting CAPI, (3) mechanisms behind (4) quantification impact climate. Heavy Asia has radiative effects by reducing surface radiation, increasing air temperature, lowering boundary layer height. key factor absorption, which particularly strong central China. This absorption can a wide range such as creating an imbalance forcing at top bottom atmosphere, leading to inconsistent retrievals cloud space‐borne ground‐based instruments. Aerosol delay or suppress initiation development convective clouds whose microphysics be further altered effect aerosols. For same thickness, likelihood precipitation influenced aerosols: suppressing light rain enhancing heavy rain, delaying intensifying thunderstorms, onset isolated showers parts Rainfall become more inhomogeneous extreme heavily polluted urban regions.

Language: Английский

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Soil Salinity and Sodicity in Drylands: A Review of Causes, Effects, Monitoring, and Restoration Measures

Frontiers in Environmental Science, Journal Year: 2021, Volume and Issue: 9

Published: Aug. 11, 2021

Soil salinization and sodification are common processes that particularly characterize drylands. These can be attributed either to natural conditions or anthropogenic activities. While causes include factors such as climate, lithology, topography, pedology, human mostly related agricultural land-use, specifically, irrigated agriculture. The objective of this study was thoroughly review topic, while highlighting the major challenges opportunities. Over time, extent saline, sodic, saline-sodic croplands has increased, resulting in accelerated land degradation desertification, decreased productivity, consequently jeopardizing environmental food security. Mapping monitoring saline soils is an important management tool, aimed at determining severity processes. Recent developments advanced remote sensing methods have improved efficacy mapping soils. Knowledge on prevention, mitigation, recovery soil salinity sodicity substantially grown over time. This knowledge includes measures for salt flushing leaching, water-saving irrigation technologies, precision fertilizer systems, chemical restoration, organic microbial remediation, phytoremediation affected lands. Of a particular interest development forestry-related means, with afforestation, reforestation, agroforestry, silvopasture practices salt-affected forecasted expansion drylands aggravated drying existing due climatic change emphasize importance topic.

Language: Английский

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