This research project aims to obtain information about wood harvesting, energy supply and carbon credit market using five both native and exotic forest species in experimental homogeneous and mixed plantation systems in the counties in Pará. Furthermore, as additional information, activities that open up new guidelines regarding fertilization, dissemination and phytosanitary aspects of the species in question will be carried out throughout eight actions plans. The species of interest are: paricá" ( Schizolobium amazonicum Huber ex. Ducke, Fabaceae, native), "taxi-branco" ( Sclerolobium paniculatum Vogel, Fabaceae, native), "teca" ( Tectona grandis L. f., Verbenaceae, exoctic), "acácia australiana" ( Acacia mangium Willd, Fabaceae, exoctic) e "mogno-africano” ( Khaya ivorensis A. Chev., Meliaceae, exoctic). The project is the result of a cooperation contract between Oriental Amazon Embrapa, Carbon Positive Gerenciamento de Projetos Brasil Ltda. (CPGPB) and rural producers. In this partnership, Oriental Amazon Embrapa contributes with technical knowledge; CPGPB with financial support, and the producers, with the land for the plantations and services. CPGPB plans a large scale reforestation (160,000 hectares) in Brazil based on the Clean Development Mechanism (MDL) of the Kyoto Protocol. For such an objective, the company will conduct a forestry research in order to determine the best suited species and the best suited forestry models before implementing the entire area in which the reforesting is done. The silviculture testing focus on the following technical aspects: 1) A comparison between growing potential and survival rates of the native and exotic species in question, considering their carbon sequestration potential following the guidelines of the Clean Development Mechanism (MDL) of Kyoto's Protocol; 2) Comparison between the responses of the different species studied to different levels of fertilization, in terms of survival and increase (height, diameter and volume); 3) Comparison between responses of the different species studied to different planting spacing, to identify the ideal distance for each species both in homogeneous and mixed plantation systems, with the goal to improve the survival rate. These predicted results will guide the choice of the first models and species to be used in the large scale reforestation project over a three year period, a goal that will be reached through the comparison between the data obtained in the beginning with the existing knowledge, with the intent to develop performance projections regarding the different species and different models. The project aims to predict the planting and the monitoring of the proposed models over a three year period. CPGPB will finance the project's first three years and might continue the financing for another 10 years, with the technical support of Oriental Amazon Embrapa, with new research guidelines involving the same species or new ones.

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