| Author | Van Thi Yen |
| Call Number | AIT Thesis no.NR-11-08 |
| Subject(s) | Rain forests--Vietnam--Thua Thien Hue
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| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Natural Resource Management, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. NR-11-08 |
| Abstract | This study aimed to survey the plant species composition and forest structure, assess forest the biodiversity value, explore which physical factors and disturbances have an influence on vegetation patterns and to what degree and to interpret the findings in view of forest dynamics and succession. Forty plots with 400 m2 each were established in the Huong Phu forest (42 ha) where all the mature trees (> 6 cm DBH), saplings (6 cm ≤DBH ≥ 2.5 cm) and palms were identified and measured by size (height and DBH). Each plot was divided into 5 sub-plots 4 m2 (2m x 2m) where seedlings (< 1.4 m in height and DBH < 2.5 cm) were measured and identified. 2031 trees of > 6 cm DBH and 157 species belonging to 45 families have been surveyed in total 1.6 ha. The density (678 trees ≥ 10 cm per hectare) is quite high compared to other studies. However, the basal area (27 m2 ha-1) is medium compared to other secondary forests or logged forests. The diversity was quite high (Shannon’s Index = 2.91, Simpson’s Index = 0.95). In terms of IVI, four species were considered dominant near the ridges and three species along the streams. These species also contributed to a different layer in forest structure. Scaphium lychnophorum,Endospermum chinense and Artocarpus rigidus were dominant inthe upper-storey layer (15-25 m), Gironniera subaequalis in the under-storey layer (5-15 m). There were significant correlations between physical factors (plot location and elevation), floristic structure and forest structure. Moreover, the total aboveground biomass of this forest was also affected by disturbances, especially logging activities (through estimating biomass removal). A discussion on the stand structure and dynamics processes is included. |
| Year | 2011 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. NR-11-08 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Development and Sustainability (DDS) |
| Academic Program/FoS | Natural Resources Management (NRM) |
| Chairperson(s) | Cochard, Roland;Shivakoti, Ganesh Prasad |
| Examination Committee(s) | Shrestha, Rajendra |
| Scholarship Donor(s) | MacArthur Foundation;AIT Fellowship |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 2011 |