Rainfall variability, rainfed agriculture and degree of human marginality in North Guanajuato, Mexico

Granados, Rebeca Reza; Soria, Jesús Hidalgo; Cortina, Moises

doi:10.1111/sjtg.12191

Cited by 12 publications

(11 citation statements)

References 26 publications

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“…When the average precipitation increases by 1 percent, the groundnuts' farm returns increase by 0.115 percent. In the same vein of research, Granados et al (2017) and Ater & Aye (2012) obtain similar results. On the contrary, average, precipitation has a significant negative relationship with farm returns for beans.…”

Section: Regressionssupporting

confidence: 52%

The Effect of Climate Change on Agricultural Crop Returns in Uganda

Tumwine

Lokina

Matovu

2019

JEBS

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The study examined the effect of climate change on agricultural crop returns in Uganda using the Ricardian Panel Tobit technique and the World Bank Living Standards Measurement Survey (LSMS) data, climate data from Uganda National Meteorological Authority (UNMA) and global weather data. The findings showed that climate related risks account for over 67 percent of agricultural risks and less than 2 percent of the farming households practise irrigation. Farmers that practised irrigation earned higher agricultural returns nationally than their counterparts did. The findings show that the output elasticities with respect to temperature range from -2.02 percent to 0.543 percent. This implies that for the average temperature increase by 1 percent, maize farm returns decreased by 2.02 percent, banana by 1.7 percent, cassava by 1.50 percent and beans by 1.01 percent. While 1 percent increases in rainfall, lowered banana returns by 0.02 percent, beans by 0.08 percent, cassava by 0.035 percent, maize by 0.025 percent except for groundnuts’ returns increased by 0.115 percent. Apart from climate factors, non-climate factors such as capital, labour, farm size, fertilizers and soil quality are equally important inputs and significantly impact on agricultural farm returns. The study proposes that due to unrelenting adverse climate change effects in Uganda, adoption of multi-pronged approaches such as extensive irrigation, agro-insurance, diversification of agricultural activities, use of food cribs during bumper harvests would be the breath of life for Ugandan farmers.

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Section: Regressionssupporting

confidence: 52%

The Effect of Climate Change on Agricultural Crop Returns in Uganda

Tumwine

Lokina

Matovu

2019

JEBS

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“…The wax in the plants generally fulfills the function of a waterproofing agent, and is of vital support against extreme stress factors, preventing dehydration of the plant tissue by evaporation [ 1 ]. Considering that around of 101.5 million hectares are estimated as “Drylands” in Mexico [ 2 , 3 ], the northern region of Mexico is an area that favors the production of wax in the plant, which is subsequently collected by people in the communities of the region.…”

Section: Introductionmentioning

confidence: 99%

Antioxidant activity of polyphenolic compounds obtained from Euphorbia antisyphilitica by-products

Bautista-Hernández

Aranda-Ledesma

Rojas

et al. 2021

Heliyon

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In this study, an alternative extraction technique, ultrasound-assisted extraction, was used to extract the polyphenolic fraction from two different residues of the candelilla plant ( Euphorbia antisyphilitica ). These metabolites were further analyzed to evaluate their bioactivity as antioxidants. In addition, their functional groups were identified by Fourier transform infrared (FTIR) spectroscopy. The antioxidant assays showed statistically significant differences between the phenolic extracts, with citric acid residues (CAR) exhibiting a higher oxidant effect than sulfuric acid residues (SAR). The CAR from San Jerónimo (SJ) cultivar showed decreased IC 50 values (179.441 ± 7.92 μL mL −1 , DPPH • ), and its polyphenolic fraction was able to inhibit lipid oxidation (70.31 ± 2.50%). FTIR analysis subsequently revealed the presence of functional groups related to polyphenolic compounds, such as hydroxy, carbonyl, carbon double bond, and amine groups. In addition, FTIR spectra showed slight differences in phenolic compounds, due to the strong acid treatment involved in the extraction of wax. The present study demonstrated that candelilla by-products from citric acid-wax extraction have a polyphenolic fraction with strong antioxidant activity, which may be useful in food and pharmaceutical products.

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“…No semiárido do Brasil, o feijão-caupi é cultivado majoritariamente em regime de sequeiro (Andrade Junior, 2018), dessa forma, trata-se de uma cultura altamente vulnerável a variações de precipitação (Granados et al, 2017). Esse nível de vulnerabilidade a fatores climáticos expõe os meios de subsistência agrícola dos agricultores do semiárido a condições catastróficas, com graves implicações para a manutenção da segurança alimentar e sustentabilidade agrícola dessa região Alabi, 2018).…”

Section: Introductionunclassified

Effect of rainfall variability on the production of Vigna unguiculata (L.) Walp. in the semi-arid region of Paraíba

et al. 2020

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Agricultural production in semi-arid areas of the globe is dependent on species adapted to conditions of low availability of resources, such as water. Cowpea (Vigna unguiculata L. Walp.) is a vegetable widely grown in regions with water restrictions, however, even with its good adaptability, it is vulnerable to the effects of prolonged droughts. In this sense, this research aimed to analyze the influence of rainfall patterns on the production dynamics of cowpea during the period of fifteen years (2002-2016) in the municipality of Conceição, Paraíba, Brazil. A correlation matrix was used to analyze the influence of precipitation on the production variables of the cowpea crop, as well as the relationship between these variables. Subsequently, the Principal Component Analysis (PCA) was carried out. The results showed a strong reduction in the production variables of cowpea from the year 2012, which is due to the reduction of rainfall in this period and was proven through the correction matrix, which showed a positive correlation of rainfall mainly with the planted and harvested area. The PCA recorded 91.02% of explanation in the first two axes, and demonstrated that for production and productivity, other factors in addition to good rainfall levels are necessary to increase the productive results of cowpea in the municipality.

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Rainfall variability, rainfed agriculture and degree of human marginality in North Guanajuato, Mexico

Cited by 12 publications

References 26 publications

The Effect of Climate Change on Agricultural Crop Returns in Uganda

The Effect of Climate Change on Agricultural Crop Returns in Uganda

Antioxidant activity of polyphenolic compounds obtained from Euphorbia antisyphilitica by-products

Effect of rainfall variability on the production of Vigna unguiculata (L.) Walp. in the semi-arid region of Paraíba

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