Área de preservação permanente em processo de revegetação com espécies arbóreas e adubos verdes
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2015-02-02
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Universidade Federal de Goiás
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This work was carried out Agronomy School of the Federal University of Goiás, where there is a dam that has its water used for the purpose of industrial supply, human and also for the creation of exotic fish, not belonging to the Cerrado fauna. In 2011 the revegetation was initiated with native tree species, among these: baru (Dipteryx alata), pequi (Caryocar brasiliense), mutamba (Guazuma ulmifolia), murici (Byrsonima crassifólia), nóde- porco (Physocalymma scaberrimum), and apeiba (Apeiba albiflora). Before the land was occupied with the cultivation of vegetables, annual crops and forages. In association with some tree species were used green manures, which among other things promote soil unpacking and nutrient cycling through the roots. The main objective of this study was to diagnose the situation of the study area, including water body that is fueled by Córrego Samambaia. Measurements were made of height and diameter of tree species for twelve months. In addition there collecting dam water samples where analyzed parameters pH, conductivity, total P and heavy metals. In July of 2014 and December of that year, analyzes were made of turbidity, color, biochemical oxygen demand (BOD) and dissolved oxygen (DO). The parameters were evaluated according to the recommendations in the Standard Methods For Examination of Water & Wastewater (APHA, 2012) and these were performed in the Soil Analysis Laboratory, Substrate and Plant Nutrition (Lassnut) in the Agronomy School, and the use of Sanitation Laboratory of the School of Civil Engineering, both from the Federal University of Goiás. It also carried out physico-chemical analysis of soil. These were performed at Lassnut and also at the Soil Physics Laboratory EA-UFG. Monitoring carried out in September 2013 to August 2014, some plants had good response in relation to the use of green manures, but others had high mortality during the study, as the case of the pequi. The competition between alien and native was reduced, which increased overall survival. Elements such as Mn showed no significant difference in all treatments during evaluation’s period. The replacement of leguminous plants where there has been death is one of the alternatives to reduce compression levels. Macro and micro pores values were similar, but for texture area showed differences. For penetration resistance tests (PR) made in an area with green manure and one without legumes species, the largest PR values were found in the area without green manure. The water body receives the discharge of sewage illegally occupied homes. Parameters such as electric conductivity, were stable during the twelve months of study. The results for DO and BOD are outside the recommended by CONAMA’s determination, Nº 357.
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FERREIRA, E. A. Área de preservação permanente em processo de revegetação com espécies arbóreas e adubos verdes. 2015. 91 f. Dissertação (Mestrado em Agronomia) - Universidade Federal de Goiás, Goiânia, 2015.