Objectives of the research
4
Equipment utilized:
Rope for plot set -up
GPS
Tape m easure
Dat a collect ion form
Aluminum t ag for t ree num bering
Dry w eight and carbon calculat ion program by Som sak and Taw ee 2010
Com put er
Cam era b. Dat a analysis
The dat a on diam et er is supplied int o a form ula t o calculat e t he dry w eight of t he w hole t ree or biom ass per t ree in t he dry evergreen forest. The form ula below adopt ed from Tsusum i et al.
1983 w as developed by Som sak and Taw ee 2010; WS
= 0.0509 dbh2h 0.919
WB =
0.00893 dbh2h 0.977 WL
= 0.014 dbh2h 0.669
h =
85.6 dbh0.916 46.8 + 1.83 dbh0..916 w here,
WS
,
WB
,
and WL are dry w eight kilogram of st em , br anch and leaf consecut ively;
Dbh is diam et er at breast height 1.30 m et er above gr ound in cent im et er; and
h is t he height of t ree in m et er The calculat ion of carbon st ock per t ree is based on the product of biom ass per t ree and fixed
value of 0.47 per IPCC st andard biom ass t ree x 0.47. The values are added up t o get t he carbon am ount in t he area of 800 square m et ers.
Calculat ion w as done for carbon st orage in each rot at ional field and age class; in rot at ional fields aged bet w een 1-7 years; and carbon em ission in year eight t hrough slash and burn syst em .