Soil sampling for carbon sequestration in a replanted area in São Paulo State

• Grant number: 07/00864-4
• Support Opportunities: Regular Research Grants
• Start date: September 01, 2007
• End date: December 31, 2009
• Field of knowledge: Agronomical Sciences - Forestry Resources and Forestry Engineering
• Principal Investigator: Hilton Thadeu Zarate do Couto
• Grantee: Hilton Thadeu Zarate do Couto
• Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil

Abstract

The climate changes are a big danger for the environment and the sustainable development of the world. This changes are caused by the increment of the greenhouse effect up of the desired levels, caused by the gasses that absorb the sun radiation (SZACÁKS, 2003).With the main objective of decrease the effects caused by the increment of gasses emissions, the United Nations Framework Convention on Climate Change (UNFCCC) talk about the CO2 sequestration by the skills of biologic absorption of the soils and forest. In 2006 they point the class of pools to be considered for the sequestration: Biomass up and down the soil, dead wood, organic matter and soils.The present project is considered to be executed in forest soils with the precedent that the organic carbon concentration of soils (1500 Pg C in the first meter of deep) represent the main stock in interaction with the atmosphere, knowing that the vegetation (650 Pg C) and the atmosphere (750 Pg C) has less levels.The main problem is that the methods to evaluate and study the carbon pools in soils are few, and they represent another big difficult, the comparation of the results and the integration in trust databases are impossible in practice, because there are many differences related to the measure ways and the sampling methods. At this moment there are not methodologies ways to measure the sequestration of carbon in agriculture production systems. (ACOSTA 2001, ETCHEVERS 2001).The objective of this work is to develop a soil sampling plan in native forest to know if the carbon used in clean development mechanisms comparing different sampling class used in soils. The applied methodology is the one named at 2006 Intergovernamental Panel of Climate Changes.This is an important research for Brazil, because it has the main forest at world, so we can estimate a big CO2 sequestration that may turn into big sales of divisas. (AU)