The International Forest Resources and Institutions (IFRI) research program is
designed by a network of social and natural scientists from different parts of the world and
is intended to exam the interdependency relations between people and forests and to
analyze forest conditions In 2003, in terms of IFRI methodology, our team has done some
relative research in Kog Bung Preu community forest, which locates in the northeast of
Thailand, and collected forest data including some key variables and parameters, such as
DBH (Diameter at Breast Height), HEIGHT, BA (Basal Area), and DENSITY of trees and
saplings in 31 plots in this community forest. In 2009, we re-visited the forests and 31
forest plots, using IFRI methodology and GPS technology again to collect data based on
four key variables of trees and saplings. In the process of data management and analysis,
we use IFRI Data Entry Application, and Access, Excel, SPSS, Map-source etc. to help us
manage and analyze collected data. Meanwhile, a variety of qualitative and quantitative
techniques were used to understand and analyze different variables and data. This paper
will mainly focus on the changes in the Kog Bung Preu forest since last visit. By comparing
and analyzing the forest plot data of two visits by using macro- and micro-scale, it is
intended to reveal the actual status of Kog Bung Preu forest and to discuss the reasons