Material and Methods
Study area
The study was located at Thong Pha Phum District, Kanchanaburi Province,Thailand which can be classified into three
forest types as tropical rain forest, dry evergreen forest and mixed deciduous forest.
Three sampling sites were selected, one from each of three forest types. The geographical characteristics of the sampling sites a recordedin Table 1 and Fig. 1
Aboveground biomass and carbon
sequestration study
Three different forests were selected on
the basis of total inventories for woody stems of
DBH ≥ 4.5 cm. The SILVIC Program was used
for tree height estimation (Ht) by using a
minimum of 40 randomly selected trees of
various sizes in the sample plots and following
the equation Ogawa, Yoda and Kira (1961):
1/ Ht = 1/ A (DBH)h + 1/ H*
Where Ht = height of tree (m)
DBH =diameter at breast height (cm)
A, h, H* =constant