In order to examine if the density of trees in paddy fields
is related to size of landholdings, the basic village-level
information database of the Community Development
Department (Table 1) was utilized. Mean agricultural land
holding size in the sub-district (tambol) level was calculated from the database. Based on the mean agricultural
landholding size of the largest share of the area within the
cell, all of the sample grid cells were categorized into a
smaller-sized landholding group with an area of 2.0 ha or
less (62 grid cells), with a mean area of 1.5 ha, and a