Influencing of Some Environmental Factors Affected on Vegetation Characteristics in Phu Pra Bhat, Phu Hin Jom Tad - Phu Pra Bhat National Park Udon Thani Province
DOI:
https://doi.org/10.14456/jare-mju.2025.45Keywords:
species composition of tree, physical environmental factors, limiting factors conservation , forest managementAbstract
The study of some environmental factors that influence plant community characteristics can help emphasize conservation of the forest. This study aimed to study the relationship between plant community characteristics and species composition that appeared along some of environmental factor’s gradient in Phu Pra Bhat, Phu Hin Jom Tad - Phu Pra Bhat National Park (preparatory area), Udon Thani Province. Twenty-seven plots of 20 x 20 m were established on study sites. Tree species composition and some physical environmental factors were collected and used for analyzing plant community characteristics and ordering forest stands that related to environmental factors. Results found that 81 species 63 genera and 33 families with the diversity index of 3.62 in the area. The plant community can be divided into four sub-communities. First, the deciduous dipterocarp forest with Dipterocarpus obtusifolius community was determined by elevation and aspect. Second, the deciduous dipterocarp forest with Gluta usitata community was determined by slope. Third, the mixed deciduous forest with Cananga latifolia community, and fourth, the rock outcrop forest with Peltophorum dasyrrhachis. Both communities were determined by temperature and rainfall. The results indicated that physical environmental factors had an influence on the appearance of plant community characteristics. Therefore, in the management of forest resources in Phu Hin Chom That - Phu Phra Bhat National Park, physical factors of the area should be considered along with the different plant community characteristics in order to find appropriate management approaches in terms of natural resource conservation, forest and ecosystem restoration, research, tourism, and recreation, etc.
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