Socioeconomic vulnerability of pastoralism under spatiotemporal patterns of drought in Eastern Africa

Guye, Mekuria; Legesse, Abiyot; Yimer, Mohammed

doi:10.1007/s12517-021-08967-3

Cited by 4 publications

(2 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, the spring drought of 1984 was caused by an increase in sea surface temperatures (SST) in the equatorial Atlantic Ocean (Dadi 2013). Most recently, extreme drought in Ethiopian rangelands in 2015/16 was exacerbated by the El Niño event in the Pacific Ocean, supercharged by global climate change (Oxfam 2016), and herds are highest in pastoral areas in Southern Ethiopia, mainly in Guji, Borana, Gabra and some parts of the Somali Regional State that have been affected (Mekuria et al 2021). According to Mera (2018), the areas most affected by drought in Ethiopia are largely inhabited by pastoral communities who depend mainly on livestock for their livelihood.…”

Section: Spatial Drought Patternsmentioning

confidence: 99%

Temporal climate conditions and spatial drought patterns across rangelands in pastoral areas of West Guji and Borana zones, Southern Ethiopia

et al. 2023

View full text Add to dashboard Cite

Climate change and its variability adversely impact pastoral livelihoods, and understanding climate variability and its change is important to deduce policy implications for pastoral communities. Accordingly, the aim of this study was to investigate the temporal climate conditions and spatial patterns of drought across the rangelands in pastoral areas of West Guji and Borana Zones, Southern Ethiopia. Temporal climate conditions were performed at the rangeland level, and spatial drought patterns (distributions) were estimated across the sample Kebeles (Kebele is the smallest administrative unit in Ethiopia which works in the Duda rangeland) and Reeras (Reeras refer to the smallest customary administrative unit in the Borana Zonal administration) structures. Station-satellite temperature and rainfall data (38 years from 1981 to 2018) were obtained from the Ethiopian Meteorological Agency. For data analysis, the Mann–Kendall trend test was employed to test rainfall, temperature and drought patterns, while Sen’s slope was used to test their magnitude of change, and coefficient of variation was employed to estimate rainfall and temperature variability. Standardized precipitation index was used to estimate drought event, while inverse distance-weighted method was used to estimate spatial drought patterns. The study reveals very high temporal rainfall variability with notable disparities in the rangelands mainly attributed to climate change. Besides, the study area exhibits high spatial variability of drought signifying agro-ecological characteristics in the rangelands. In the Duda and Gomole rangelands, annual rainfall increased non-significantly by 0.01 and 0.03 mm per annum, respectively. The annual minimum temperature in both Duda and Gomole increased significantly by 0.008 and 0.007 ℃ per year, respectively, albeit the annual maximum temperature in the rangelands decreased non-significantly by 0.02 and 0.009 ℃ per annum. Both rangelands experienced high annual rainfall variability, increasing annual minimum temperature, drought frequency and severity. Therefore, the outcome of the study is believed to be vital for identifying drought hotspot areas in the rangelands and devising strategies that help to reduce drought impacts on pastoral communities in Southern Ethiopia.

show abstract

Section: Spatial Drought Patternsmentioning

confidence: 99%

Temporal climate conditions and spatial drought patterns across rangelands in pastoral areas of West Guji and Borana zones, Southern Ethiopia

et al. 2023

View full text Add to dashboard Cite

show abstract

“…To establish suitable models of RMY pr for Sinaloa, it is vital to assess sensitivity by calculating correlations between RMY ob and various MD indices with different reference periods and early time steps [11,19,20].…”

Section: Introductionmentioning

confidence: 99%

Sensitivity of Four Indices of Meteorological Drought for Rainfed Maize Yield Prediction in the State of Sinaloa, Mexico

et al. 2022

View full text Add to dashboard Cite

In the state of Sinaloa, rainfall presents considerable irregularities, and the climate is mainly semiarid, which highlights the importance of studying the sensitivity of various indices of meteorological drought. The goal is to evaluate the sensitivity of four indices of meteorological drought from five weather stations in Sinaloa for the prediction of rainfed maize yield. Using DrinC software and data from the period 1982–2013, the following were calculated: the standardized precipitation index (SPI), agricultural standardized precipitation index (aSPI), reconnaissance drought index (RDI) and effective reconnaissance drought index (eRDI). The observed rainfed maize yield (RMYob) was obtained online, through free access from the database of the Agrifood and Fisheries Information Service of the government of Mexico. Sensitivities between the drought indices and RMYob were estimated using Pearson and Spearman correlations. Predictive models of rainfed maize yield (RMYpr) were calculated using multiple linear and nonlinear regressions. In the models, aSPI and eRDI with reference periods and time steps of one month (January), two months (December–January) and three months (November–January), were the most sensitive. The correlation coefficients between RMYob and RMYpr ranged from 0.423 to 0.706, all being significantly different from zero. This study provides new models for the early calculation of RMYpr. Through appropriate planning of the planting–harvesting cycle of dryland maize, substantial socioeconomic damage can be avoided in one of the most important agricultural regions of Mexico.

show abstract

Pastoralists under threat continuum: quantifying vulnerabilities of pastoralists to climate variability in southern Ethiopia

2022

View full text Add to dashboard Cite

Socioeconomic vulnerability of pastoralism under spatiotemporal patterns of drought in Eastern Africa

Cited by 4 publications

References 28 publications

Temporal climate conditions and spatial drought patterns across rangelands in pastoral areas of West Guji and Borana zones, Southern Ethiopia

Temporal climate conditions and spatial drought patterns across rangelands in pastoral areas of West Guji and Borana zones, Southern Ethiopia

Sensitivity of Four Indices of Meteorological Drought for Rainfed Maize Yield Prediction in the State of Sinaloa, Mexico

Pastoralists under threat continuum: quantifying vulnerabilities of pastoralists to climate variability in southern Ethiopia

Contact Info

Product

Resources

About