Fernando de Oliveira Mota Filho

Influência de poluentes atmosféricos em Belo Jardim (PE) utilizando Cladonia verticillaris (líquen) como biomonitor

Cladonia verticillaris used in this study was collected in the cerrado vegetation of Saloa (PE, Brazil) and transplanted in plastic containers on soil from the collection place to Belo Jardim (PE) that possesses lead smelters and battery industries. The experiments were disposed at eleven different places for evaluating the dispersion of pollutants and their effects on the biomonitor. The exposed lichens were collected over eight months and submitted to thin layer and high performance liquid chromatographies, and scanning electron microscopy. C. verticillaris placed in the vicinity of the emission sources demonstrated alteration in its metabolism, decreasing the production of its major compound, fumarprotocetraric acid, and deterioration of its external and internal surfaces.

Soils degradation by salts in Pernambuco, Brazil

Caatinga is often replaced by herbaceous or short cycle culture; soil exposure support erosion; continued the cultivation leads to loss of fertility; and the bad management of irrigation that can to lead to salinization. With the objective of to value the influence of irrigation in the process of desertification of municipality Cabrobó – Pernambuco, went achieved collection of soil and or parses of Electrical Conductivity of the saturation extract (ECse) and of Exchangeable Sodium Percentage (ESP). The results indicate that irrigation techniques employed, by furrow and/or flood, in the cultivation of onion (Allium cepa L.) and rice (Oryza sativa L.), without the implantation of an artificial drainage system are leading to elevation of purports of salts of irrigated soils.