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- Daniel, Joaquina, et al.
(författare)
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Analysis of Factors Contributing to Malnutrition in Ribaué District – Nampula Province : Análise dos Factores que Contribuem para Malnutrição no Distrito de Ribaué – Província De Nampula
- 2023
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Ingår i: ISSN 2310-0036. - 2310-0036. ; 14:1, s. 1-14
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Tidskriftsartikel (refereegranskat)abstract
- This article deals with the factors that contribute to malnutrition, considering the nutritional situation in the five communities in which interventions to improve food and nutritional security were carried out. The objective is to present a qualitative analysis of the current nutritional situation of farmers, based on data collected through a survey in the form of a questionnaire and a systematic review of the literature on food and nutritional security. The study discusses the concepts and theories related to food and nutritional security in the Mozambican context. Low agricultural income and the weak source of household income, the non-existence or lack of access to markets, poor environmental sanitation, the lack of drinking water and the lack of knowledge about the importance of food and how to combine it They lead rural populations to malnutrition.
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- Arvidsson, Johan
(författare)
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INFLUENCE OF MECHANICAL LOAD LEVELS ON PHYSICAL PROPERTIES OF A EUTRIC CAMBISOL
- 2009
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Ingår i: Revista Brasileira de Ciência do Solo. - 0100-0683. ; 33, s. 477-485
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Tidskriftsartikel (refereegranskat)abstract
- The objective of this study was to evaluate the effects of different mechanical loads on soil physical properties of a Eutric Cambisol with loam sandy texture. The soil load distribution (kPa) was measured in situ by sensors placed in different soil layers. The soil physical properties evaluated were the bulk density (Ds) and the soil penetration resistance (RP) on sugarbeet (Beta vulgaris L.) row and interrow down to 0.30 m depth. The treatments were: without extra pressure exerted by the sowing machine, or no-compaction (SC); low pressure exerted by the sowing machine, named low load (BC); high pressure exerted the sowing machine, named high load (AC) and load pressure exerted by the tractor wheels used in the seedbed preparation, or tractor load (CT). The soil load distribution data indicated that the 0-0.10 m layer had soil stresses values higher than 120 kPa, which are considered very high. The increase on soil stresses from treatments SC to AC caused higher stress on topsoil than in the 0.10-0.20 m depth, while that under CT treatment showed higher stress at the 0.10-0.20 m layer. As a consequence of the soil stress load it was verified an increase on Ds in the more superficial soil layer (0-10 cm), and it followed the sequence: SC
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- De Conto, Tiago
(författare)
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INFLUÊNCIA DA PEDOFORMA NA COMPOSIÇÃO DO BANCO DE SEMENTES EM FLORESTA SECUNDÁRIA NA REGIÃO DE MAR DE MORROS, PINHEIRAL - RJ
- 2017
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Ingår i: Ciência Florestal. - : Universidad Federal de Santa Maria. - 0103-9954 .- 1980-5098. ; 27, s. 1217-1228
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Tidskriftsartikel (refereegranskat)abstract
- The composition and quality of the seed bank are some of the factors responsible for the structure and floristic composition of forest environments. The aim of this study was to evaluate the seed bank of a semideciduous forest patch, taking into account the influence of the landscape's topographical features. Two adjacent landforms, of convex and concave shapes, were selected. They were divided into mini sites (MS) I, II, and III in the convex landform and IV, V and VI in the concave one. Ten sample points on each MS were randomly distributed with a surface area of 0.0625 m(2) and 3 cm deep. A total of 4,862 germinated seeds. m(-1) was registered in 90 days, with the convex landform presenting the highest frequency of germinated seeds. m(-1). A total of 35 families and 88 species were identified in both landforms, of which 37% were of herbaceous habit, 24% arboreal, 18% shrubs, 12% lianas and 2% epiphytic. Regarding the landform's shape, 44% of the species were found in both convex and concave ones, 31% were found exclusively on the convex landform and 25% exclusively on the concave one. Regarding floristic and phytosociological parameters, the convex landform accounted for a higher number of seeds, families, and species richness, while the concave landform accounted for higher diversity. Topography was a determinant factor for the floristic and phytosociological composition of the seed bank. The highest species richness was recorded in the convex landform and highest diversity in the concave landform, with Asteraceae, Melastomataceae and Urticaceae families presenting the highest importance indexes of value.
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