Application of software program in the ecological analysis of medicinal plants of Dao ethnic minority at BaVi commune

ABSTRACT

DECODA is a ecological model. Functions of DECODA include research, analysis and management of population and community. Master file of DECODA contains species variables, community data and sample variables. DECODA includes 3 modules MDS, DECORANA, TWINSPAN. Applying DECODA in analyzing medicinal plant (MP) gardens of Yao ethnicity in TWINSPAN classifies 56 MP gardens into 6 groups based on characteristics of MP I, II, III, IV groups include MPs that fit with high sunlight, heavy soil, medium moisture and poor humus soil. V, VI groups are in opposition to the above groups. DECORANA classifies the MP gardens into 7 groups based on characteristics of gardens I, II, III, IV groups have a favourable conditions for growing MP and the owner of the gardens pay more attention in growing MP. V, VI groups are in opposition to the above groups.