Research Article

Land Cover and Forest Type Classification by Values of Vegetation Indices and Forest Structure of Tropical Lowland Forests in Central Vietnam

Table 5

Dominance and abundance species of horizontal structure in different forest types.

TypesSpeciesMean H (m)Dominance (m2/ha)Abundance (N/ha)Frequency (%)IVI

UFLithocarpus ducampii (Hickel and A. Camus) (59 : 20)16.971.5119.6766.677.58
Aphanamixis grandiflora (50 : 19)15.670.9816.6763.336.70
Terminalia myriocarpa Van Heurck and Müll. Arg (41 : 19)20.231.5813.6763.337.49
Shorea roxburghii G. Don (39 : 21)21.982.3113.0070.008.74

Others (1148 : 96)26.69382.67269.49

LFLithocarpus ducampii (Hickel and A. Camus) (54 : 16)16.441.0618.0053.336.51
Scaphium macropodum (Miq) Beumee ex K. Heyne (41 : 21)14.030.3913.6770.006.07
Magnolia mediocris (Dandy) Figlar (41 : 18)14.140.6313.6760.005.91
Bursera tonkinensis Guillaum (40 : 19)18.531.6113.3363.337.95

Others (1221 : 107)17.70407.00273.56

DFGarcinia oliveri Pierre (66 : 25)12.490.4922.0083.338.01
Knema furfuracea (Hook. f. and Thomson) Warb (48 : 21)14.760.5416.0070.007.12
Enicosanthellum petelotii (Merr.) Ban (46 : 17)12.250.3015.3356.675.64
Syzygium lanceolatum (Lam.) Wight and Arn (45 : 22)13.000.4215.0073.337.12

Others (997 : 105)13.84332.33272.12

Species presented in bracket, i.e, 59 : 20 indicate the number of individual stems (N) representing the number of corresponding plots where the species are dominated and abundant with its occurrence frequency; IVI = Importance Value Index of the species in the study area.