Plants in Phu Pra Du Community Forest, Khon Buri District, Nakhon Ratchasima Province

Abstract

Phu Pra Du Community Forest, Khon Buri District, Nakhon Ratchasima Province is a pattern for forest conservation in local community. Several activities were conducted for conservation, i.e., plant survey, forest conservation camp, reforestation, dam construction, fire protection trail. Fifty-two of 20´20 meter sampling plots and natural trails survey were used. The study found 69 families 205 genera and 258 species. Density, frequency, dominance, importance value index, and species diversity index of Shannon-Weiner were analyzed. The tree species showing highest important value index were Shorea obtusa Wall. ex Blume, Shorea siamensis Miq., and Xylia xylocarpa (Roxb.) W. Theob. var. kerrii (Craib & Hutch.) I.C. Nielsen. The understory species showing highest important value index were Vietnamosasa pusilla (A. Chev. & A. Camus) T.Q. Nguyen, Cyanotis axillaris D. Don ex Sweet, and Shorea obtusa Wall. ex Blume, respectively. The species diversity indices of tree and understory were 2.9191 and 2.4537, the evenness values were 0.6108 and 0.4627, and the species diversity values were 18.5255 and 11.6309, respectively. The dominant families were Fabaceae, Malvaceae, and Rubiaceae, respectively. There are 1 species of rare plant in Thailand, 5 species of rare plants (R), 3 species of vulnerable (VU), and 1 species of near threatened (NT)