Phouveth Senpaseuth. The estimation of carbon storage in dry evergreen and dry diptercarp forests in Sang Khom district Nong Khai province Thailand. Master's Degree(Technology of Environmental Management ). Mahidol University. Mahidol University Library and Knowledge Center. : Mahidol University, 2009.
The estimation of carbon storage in dry evergreen and dry diptercarp forests in Sang Khom district Nong Khai province Thailand
Abstract:
The objectives of this study were to identify the plant community
characteristics and estimate and compare the carbon storage in dry evergreen and
dry dipterocarp forests, including with soil (physical and chemical) properties, in
Sang Khom district, Nong Khai province. Six temporary sample plots (20×50 m2)
were designed to collect data as the study area. The biomass of plant species was
estimated from each of the tree components, both aboveground (stem, branch and
leave) and belowground (root) portions, by using allometric equation. The
biomass of the groundcover was also collected and evaporated by oven drying at
80oC for 3-5 hours or until it was at a constant weight. Then the dried weight was
used to estimate the biomass content. The carbon in the biomass of the
aboveground, belowground portions of the trees and the biomass of the ground
cover on the soil surface were calculated by multiplying with a conversion factor
at 0.5. In additions, the soil properties and soil organic carbon were analyzed.
The results of this study showed that the plant community
characteristic of dry evergreen and dry dipterocarp forests looked like a sparse
forest, while the total carbon contents of both forest types were mostly different,
especially, the aboveground carbon contents which were identified as the greatest
amount of carbon contents. However, the total carbon content of dry evergreen
forest was more than dry dipterocarp forest: they were 31,442.01 and 15,096.17
kg/rai, respectively. The aboveground (stem, branch and leave), belowground
(root and soil) and ground cover carbon content of the dry evergreen forest was
about 23,737.05, 7,682.26, 22.71 Kg/rai, respectively. The aboveground (stem,
branch and leave), belowground (root and soil) and ground cover carbon content
of the dry dipterocarp forest was about 9,505.00, 5,578.57, 12.61 kg/rai,
respectively.