Kinetics and molecular changes of fulvic and humic acids formed from decomposition of Oxycaryum cubense

• Grant number: 13/26984-7
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• Start date: April 01, 2014
• End date: September 30, 2014
• Field of knowledge: Biological Sciences - Ecology - Ecosystems Ecology
• Principal Investigator: Irineu Bianchini Júnior
• Grantee: Argos Willian de Almeida Assunção
• Supervisor: Alexandre Magno Anesio
• Host Institution: Centro de Ciências Biológicas e da Saúde (CCBS). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
• Institution abroad: University of Bristol, England
• Associated to the scholarship: 11/10178-6 - Kinetics and molecular variations of humic compounds formed from the decomposition of aquatic macrophytes., BP.DR

Abstract

Considering the macrophytes represent an important part of the biomass of aquatic environments and their decomposition is an important source of detritus that can determine characteristics of this environment. The aim of this project is compare the kinect and chemical variation of fulvic and humic acids formed from Oxycaryum cubense decomposition. Samples of plant and water were previously collected and were made incubation chambers. From the dissolved fraction were extracted and separated fulvic and humic acids. These humic compounds will be used in new incubations under aerobic and anaerobic conditions. On sampling days aliquots will be taken then analyzed pH, electrical conductivity, organic and inorganic carbon and spectroscopy at ultraviolet and visible regions. (AU)