Analysis of results of biomass forest inventory in northeastern Amazon for development of REDD+ carbon project

Abstract

In Brazil, a signifi cant reduction in deforestation rates occurred during the last decade. In spite of that fact, the average annual rates are still too high, approximately 400.000 ha/year (INPE/Prodes). The projects of emissions reduction through avoided deforestation (REED+) are an important tool to reduce deforestation rates in Brazil. Understanding the amazon forest structure, in terms of biomass stock is key to design avoided deforestation strategies. In this work, we analyze data results from aboveground biomass of 1,019.346,27 hectares in the state of Pará. It was collected data from 16,722 trees in 83 random independent plots. It was tested 4 allometric equations, for DBH > 10cm: Brown et al. (1989), Brown and Lugo (1999), Chambers et al. (2000), Higuchi et al. (1998). It revealed that the biggest carbon stock of above ground biomass is stocked on the interval at DBH between 30cm and 80cm. This biomass compartment stocks 75.70% of total biomass in Higuchi et al. (1998)

Contenido De Carbono en Un Bosque De Tierra Firme Del Resguardo Nonuya-Villazul, Amazonia Colombiana

“…En este sentido, una alta biomasa de árboles con DAP ≥ 10 cm en asocio con un reducido número de árboles grandes y una baja rotación de árboles puede estar asociada en nuestro caso con una alta biomasa del sotobosque. Desafortunadamente, los datos de biomasa del sotobosque para la Amazonia son escasos en la literatura científica, con algunas pocas excepciones (Mello et al, 2016;Nascimento & Laurance, 2002). La ausencia de árboles grandes puede ser una razón que promueve el desarrollo de un sotobosque denso y con alta biomasa, independiente de la dinámica del bosque.…”