[PDF] Top 20 RETURN MIGRATION TO THE BRAZILIAN SEMI-ARID NORTHERN REGION

... sense, the migrant to return is understood by the individual who left their region of birth, he resided for some time in a different region and with certain time returns ... See full document

... in the micro basin of thinned CPD, with an accumulation of approximately 36 mm, while in the micro basin of CPD under regeneration, the accumulated Pe was 72 mm (Table 4), corresponding to a ... See full document

... Contary to expectations, the NDF concentration decreased as maturity increased, showing a strong negative ...correlation. The highest levels of NDF were found after 70 days of plant development and ... See full document

... of the most effective procedures in assessing desertification has been through remote ...used to study changes in the environment, offer elements that can provide information that make it possible ... See full document

... city, semi-arid region of Paraiba State, sited between 7 o ...According to Köeppen classification, the climate is Bsh’ type - semi-arid and warm, with low rainfall annual ... See full document

... have the potential to increase social vulnerability, thereby affecting the livelihood of the most vulnerable populations and exacerbating socioeconomic ...decisions to leave a location ... See full document

... corroborate the hypothesis of Ansell (1983), which suggests that spawns occasioned by environmental changes and coordinated by chemical stimuli are not the default to Donax ...Therefore, the ... See full document

... Considering the rainfall’s importance in hydrological modeling, the objective of this study was the performance comparison, in convergence terms, of techniques often used to estimate ... See full document

... that the dominance of filamentous cyanobacteria in lakes and reservoirs is typically associated with eutrophic ...closely to low underwater luminosity, characteristic of eutrophic lakes, than directly ... See full document

... of the three systems under study showed a variation which was below the limits established for freshwater by the National Environmental Council (Conselho Nacional do Meio Ambiente - ...during ... See full document

... - The replacement of natural vegetation by crop systems directly impacts the soil organic matter ...fractions. The objective of this study was to evaluate the total organic carbon (TOC) ... See full document

... on the spatial scale and land use. The objective of this study is to analyse the effects of slash and burn of vegetation followed by grass cultivation for grazing, on the hydrological ... See full document

... in the ethnoveterinary medicine of Pedra Lavrada (Northeastern Brazil) to treat 14 ailments – thus indicating the rich ethnomedical knowledge of the local population in relation to ... See full document

... as the rains ease off (Figure 4), the leaf-abscission phase ...although the Poincianella pyramidalis is a species adapted to the semi-arid conditions, it is sensitive ... See full document

... in the Brazilian semi-arid region, and is the main tributary of the upper rio Paraguaçu, an important drainage of the Chapada ...Diamantina. The temporal ... See full document

... contribution: the development of indicators and the study of the current condition of social-environmental vulnerability of three municipalities in the state of Paraíba, all situated in ... See full document

... years, the major concerns about the environment and the creation of goals for the realization of an effective sustainable development in the semiarid region have aroused ... See full document

... Due to its abundance and resistance to drought, semi-arid native vegetation has been historically used for raising livestock, constituting frequently the only protein and energy source ... See full document

... in semi-arid basins constitutes a challenge to the knowledge of the availability of water, both for authorization purposes of water use, as regards the aspects related to ... See full document

... with the uncertainty of the spatial and temporal distribution of rainfall in semi-arid environments (ANDRADE et ...in the water deficit always present in these regions (KAMPF et ...in ... See full document