Repositório RCAAP

Universidade Federal de Sao Carlos

Universidade Federal de Sao Carlos

Universidade Federal de Sao Carlos

Universidade Federal de Sao Carlos

Financiadora de Estudos e Projetos

[sem resumo]

Universidade Federal de Sao Carlos

Cáceres is situated to the left edge of High Paraguai river, in the Region Center-West, Brazil, possessing co-ordinated: south latitude (16º 11' 42' ') e longitude west (57º 40' 51' ') with altitude of 118 meters above sea level. This research was carried through with the objective to know the perception of the professional fishing of the Z-2 Colony with regard to the ambient functions, potentialities and to the impacts of the Paraguay river throughout the urban perimeter of the city of Cáceres/MT, in order to become possible the participation of all the involved ones in activities of Environmental Education, aiming at the environment conservation and the improvement of quality of life in the daily one of these people. Fishing has great importance for the Cáceres population, therefore it is the economic base for many families of low income who use waters of High Paraguai river, vestibule of the Pantanal Weed. The used methodological procedures for the collection of data had been documentary analysis, participant comment, informal dialogues, interviews, works of field, application of questionnaires, accomplishment of workshops, dynamic of group, lectures, systematization and interpretation of data. As results, we concluded that the professional fishing have faced a series of problems generated for fish predatory, for the deforestation and the tourism not guided, inconsequence practical that come causing difficulties in the supply fishing boat (amount) and in the biodiversity of ictiofauna (species) throughout the time, beyond social environmental impacts in the Paraguai river, as exclusion of the professionals of fishes, sanding up and erosion of the edges. Many of them point the polluting activities and predatory, they are conscientious that they can help the environment agencies and present suggestions for the questions of professional and sportive´s fishes. From the identification of the collective problems that face and the interpretation of the perception that they possess on such questions, it was possible to carry through practical of Environmental Education, taking in consideration the open and critical dialogue. It was evidenced that the environment management of Cáceres applied to the Paraguai river is not adjusted, lacking a rigorous fiscalization for it fishes predatory and bigger opening for the participation of the professional fishing in the public administration.

Financiadora de Estudos e Projetos

Financiadora de Estudos e Projetos

Financiadora de Estudos e Projetos

Financiadora de Estudos e Projetos

Fundação de Amparo à Pesquisa do Estado de Mato Grosso

Universidade Federal de Sao Carlos

Universidade Federal de Minas Gerais

Financiadora de Estudos e Projetos

Universidade Federal de Minas Gerais

This study aimed at analyzing the productive dynamics of the Ibitiúva Rural Settlement (Ibitiúva State Settlement) located in the municipality of Pitangueiras, São Paulo, Brazil, and characterized by a production system based on supplying sugar cane to the processing station from the majority of the settled producers. The work presented the following specific objectives in its investigation: causes which lead the producers to leasing their lands to supply sugar cane to the processing station; history of the producers lives and their perspectives regarding the future of this sugar cane supplying system; alternatives for new sustainable production arrangements for the settled, meeting the environmental, social and economic criteria, from an alternative system based on the diversity of rural production in contrast to sugar cane monoculture, grounded on associative activities between the associates, with the objective of increasing their autonomy in relation to other power instances; insufficiency of municipal public politics focused on the rural settlements by the municipality of Pitangueiras. For a better understanding of this system based on supplying agricultural raw material by the settled for a sugar producing agroindustrial unit, we performed an analysis of general economic context, comprehending the following subjects: the Complexo Rural ao Agroindustrial; Green Revolution; the Agrarian Reform and the formation of settlements in Brazil; Agricultural, Rural and Local Development; and Economic Politics destined to Agriculture. Subsequently, the study analyzed the main characteristics of the Ibitiúva Rural Settlement, highlighting its formation, origin of the settled and its socio-economic characteristics. Furthermore, the study analyzed the conditions in which the food production activities for self-consumption and commercialization are performed, which are secondary in regard to the planting system for supplying the processing station. Finally, the research investigated the main characteristics of this supplying system, highlighting its environmental, social and economic limitations through the contrast represented by their debatable monetary gains for the settled suppliers in contrast to an alternative of agriculture based on food diversity and associative production and commertialization structures.

Financiadora de Estudos e Projetos

Considered as alternative management more appropriate for tropical conditions, the no-tillage system can follow the principles of organic agriculture and contribute to the evolution and sustainability of organic cotton production systems. In order to generate usage information about soil covering plants for white and colored cotton fibers production in the organic system with no-tillage, an experiment was conducted in the farming years 2006/07 and 2007/08 in Cáceres-MT, with randomized block design, treatments disposed in scheme of split plots and four replicates. In the plots, were evaluated soil coverage consisting of crop residues of Estilozobium aterrimum, Cajanus cajan, Canavalia ensiformes, Crotalaria juncea, Pennisetum glaucum cv ADR 300, Sorghum bicolor cv BRS 307, mixture of species used, spontaneous vegetation and exposed soil. In the sub plots were evaluated upland cotton cultivars BRS ITAUBA (white) and CNPA AMT 19 (brown) in no-tillage on the crop residues of the soil covering plants cultivated in pre-planting. The plant coverage produces phytomass in sufficient quantities for adequate soil coverage. The Estilozobium aterrimum, in a general manner, shows greater extraction capacity and accumulation of nutrients, high lighting the potential cycling of nitrogen and phosphorus, while Pennisetum glaucum and Crotalaria show, respectively, greater potential cycling of potassium and magnesium. The crop residues of Canavalia ensiformes, spontaneous vegetation and Crotalaria provide low persistence coverage, while Pennisetum glaucum residues and Cajanus cajan provide more persistent coverage. During the process of residues decomposition, the nutrients following this descending order of release: K > P > N = S > Mg > Ca, being the potassium the nutrient with faster release and subject to losses. The Estilozobium aterrimum shows greater weed suppression capacity, showing potential for use in production system without application of herbicides, in contrast with the low suppression capacity of Pennisetum glaucum plants and spontaneous vegetation. The contribution of plant coverage residues promote on the surface layer of soil increases in values of attributes pH, MOS, P, K, Ca, Mg, V e CTC. The coverage does not influence the characteristics of fibers, but exerts significant effects on agronomic characteristics and productivity of cotton. The highest yield occurs in straws of Crotalaria juncea, Canavalia ensiformes, Estilozobium aterrimum and mixture of species. The cotton cultivars of brown fiber (CNPA AMT 19) shows productivity and quality of fiber lower than the cultivars of white fiber (BRS ITAÚBA), however has fibers with characteristics that meet the standards required by the textile industry.