Distributional impacts of soil erosion on agricultural productivity and welfare in Malawi

Asfaw, Solomon; Pallante, Giacomo; Palma, A.

doi:10.1016/j.ecolecon.2020.106764

Cited by 28 publications

(17 citation statements)

References 80 publications

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“…The statistical information was obtained from the FAOSTAT database [87] for the variables presented in Table 1 (and for the temperature change as an indicator for the climate changes) disaggregated across world countries and over the period of 2000-2020. The quantile regressions are adjusted methodologies to deal with problems of outliers and non-normality in the statistical databases, and they were considered, for example, in the following studies related to the food security dimensions: factors affecting food diversity in Iran [65]; impacts on rice and wheat production in Pakistan [66]; implications from soil erosion on socio-economic domains in Malawi [67]; climate effects on the rice yield in India [68]; dietary deficiencies in the Indian context [69]; analysis of explanatory variables of calorie consumption in India [70]; food demand in Slovakia [71]; food insecurity in the population from the Afghanistan [72]; relationships between oil-export and food insecurity [73]; impacts from food insecurity on children [74]; food security in Nigerian urban households [75]; main drivers of healthy ageing in India [76]; effects from the internet use on the agricultural sustainability in China [77]; relationships among poverty and food security in Vietnam [78]; relations between religion and food security in India [79]; food security policies in India [80]; impacts from food prices on the nutrients intake in India [81]; interrelations between the efficiency of wheat and climate change in Pakistan [82]; crop diversity and welfare in Uganda [83]; drivers of food insecurity [84]; horticultural sector dynamics in Senegal [85]; and financial crisis and food supply in Mexico [86].…”

Section: Methodsmentioning

confidence: 99%

Food Security and Sustainability: Discussing the Four Pillars to Encompass Other Dimensions

Guiné

Pato

Costa

et al. 2021

Foods

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The unadjusted intake of food constitutes a real challenge for the several sustainability dimensions. In this perspective, the main objectives of this research are to characterise the current contexts of food security, its relationship with sustainability, and identify proposals and actions that may support the design of more adjusted policies in the future. In addition, it is intended to assess if the food security pillars properly address the sustainability goals and if the evolution of undernutrition is accompanied by sustainable frameworks. In this way, statistical information from the FAOSTAT database was considered for the several dimensions of food security over the period 2000–2020. These data were analysed through factor-cluster approaches and panel data methodologies, namely those related to quantile regressions. As main insights, we may refer that undernutrition is more impacted by the availability of food and nutrients and political stability than by the level of GDP—Gross Domestic Product (except for the extreme cases). This means that the level of development is not the primary explanation for the problems of nutrition. The main focus of the national and international policies must be to improve the agrifood supply chains and to support political stability, in order to mitigate undernutrition worldwide and ensure a global access to sustainable and healthy diets. In addition, it is suggested to rethink the four pillars of food security (availability, access, utilisation and stability), in order to encompass other dimensions, such as climate change.

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Section: Methodsmentioning

confidence: 99%

Food Security and Sustainability: Discussing the Four Pillars to Encompass Other Dimensions

Guiné

Pato

Costa

et al. 2021

Foods

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“…Debido a que la erosión del suelo es un peligro para la seguridad alimentaria (Arora et al, 2018;Deng, et al, 2018;Poesen, 2018;Altieri y Nicholls, 2013), urge tomar medidas, ya que se sostiene (Han et al, 2020;Abd-Elmabod et al, 2020;Asfaw et al, 2020) que en suelos muy erosionados el rendimiento agrícola puede disminuir entre 65 % y 80 %. Ante ello, el biochar disminuye el riesgo de degradación de los suelos, que están relacionados indirectamente para garantizar la seguridad alimentaria.…”

Section: Biochar Y Agroecologíaunclassified

Biochar como tecnología de emisión negativa frente al cambio climático

Pariona-Palomino¹,

Matos-Ormeño²,

Huanaco³

2020

S. Sust.

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El biochar es una alternativa de acción climática, accesible, de bajo costo y sostenible. Su aplicación como enmienda permite incrementar la fertilidad del suelo y reducir las emisiones de gases de efecto invernadero como el CO 2. Por ende, es necesario implementar el biochar como tecnología de emisión negativa frente al cambio climático, disminuir los impactos negativos en el ambiente y salvaguardar la salud de las personas. La investigación es una revisión de literatura holística y sistemática disponible sobre el uso del biochar como estrategia de mitigación, debido a su capacidad de secuestro de carbono, y sobre el potencial de sus aplicaciones e interacciones que presenta con el clima, la seguridad alimentaria y los componentes del ecosistema. Se encontró que el potencial de secuestro de carbono presentado por el biochar en equivalencias de CO 2 supera las 20 GtCO 2 eq por año. Esto es muy significativo en la búsqueda de tecnologías de emisiones negativas eficientes que ayuden a reducir las emisiones de CO 2 que generan las actividades antropogénicas anualmente.

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“…Soil erosion is not only a physical and economic problem of landscape degradation and loss of natural capital [ 7 ], but soil degradation is also a global challenge for sustainable agriculture [ 7 , 8 ]. Several studies (e.g., see [ 9 , 10 , 11 , 12 ]) show that soil erosion is detrimental to global food production and has led to a reduction in agricultural production by 33.7 million tons [ 9 ]. Furthermore, it has a significant negative influence on food security by reducing global agricultural production and, in turn, increasing the prices of agricultural products by 0.4% to 3.5% in the world [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

“…The on-site damage includes nutrient and yield losses, land depletion, and biological losses. Meanwhile, the off-site damage includes, but is not limited to, sedimentation [ 2 , 18 ], floods [ 2 , 18 , 19 ], infrastructure degradation [ 2 , 19 ], decline in agricultural production [ 11 , 12 , 19 ], food price increases [ 2 , 19 , 20 ], change in land use/land cover [ 14 , 21 ], water and biodiversity losses [ 9 ], natural disasters [ 22 , 23 ], and global warming [ 24 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

“…Many studies (e.g., see [ 2 , 9 , 12 , 13 ]) have examined the relationship between soil erosion and various socio-economic variables to determine the effects that soil erosion may have on socio-economic conditions on macro and microeconomic scales [ 9 ]. In Malawi, for example, the loss of topsoil due to soil erosion can be regarded as a serious threat to the economic development of the country because approximately 26% of GDP is generated by the value added of the agricultural sector and the proportion of the rural population of the country is greater than 80% [ 12 ]. These values for Poland are 2.5% [ 30 ] and 39.96%, respectively [ 31 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

How Socio-Economic Drivers Explain Landscape Soil Erosion Regulation Services in Polish Catchments

Istanbuly

Krása

Amiri

2022

IJERPH

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Most studies that address the relationship between socio-economic characteristics and soil erosion focus on the effects of soil erosion on socio-economic conditions at different levels, from global to smallholder. Few, if any, efforts are made to address the influence of socio-economic variables on the soil erosion rate as an indicator of landscape degradation. The present study was carried out using spatial data from 402 catchments that cover Poland, to find out how socio-economic variables, which include area-weighted average income per capita (PLN km−2), area-weighted average gross domestic product (PLN km−2), population density (person km−2), and human development index can drive the soil erosion rate (kg ha−1 yr−1), along with annual precipitation, soil and geomorphological variables that include soil organic carbon content, soil water content, clay ratio, stream gradient, and terrain slope. The results showed that the soil erosion rate is indirectly driven by the socio-economic variables in the study catchments, as it is alleviated by increasing population density, the area-weighted average gross domestic product, and the human development index. Furthermore, analyzing the incremental relationship between soil erosion rate and the area-weighted average of socio-economic variables revealed that no uniform change can be observed in the relationship between the area-weighted average socio-economic variables and soil erosion in the study catchments.

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Distributional impacts of soil erosion on agricultural productivity and welfare in Malawi

Cited by 28 publications

References 80 publications

Food Security and Sustainability: Discussing the Four Pillars to Encompass Other Dimensions

Food Security and Sustainability: Discussing the Four Pillars to Encompass Other Dimensions

Biochar como tecnología de emisión negativa frente al cambio climático

How Socio-Economic Drivers Explain Landscape Soil Erosion Regulation Services in Polish Catchments

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