Although research and evaluation of climate conditions for tourism development are a pressing issue, in Vietnam in general and in the Southern region in particular, these studies are still limited. Based on climatological parameters (T-annual temperature, R-rainfall and N-rainy days) with their levels of classification representing the bioclimatic impact on tourism, the bioclimatic classification map of Southern Vietnam is built at the scale of 1:250,000. Base on the calculated data from 20 meteorological stations of Southern Vietnam in many years (1981-2015, 12 suitable bioclimatic units are established. It is a necessary scientific background to organize territory for tourism in Southern Vietnam. With plentiful bioclimatic resources, one can organize many types of tourism in Southern Vietnam. The result of classification and bioclimatic map for tourism is an important and necessary sciential basis which help the orientation of development and tourism territory organization of the governments.

Bioclimate and natural vegetation have a long - term relationship that identify the potential vegetation distribution at different areas. For that reason, bioclimatic classification system was applied to the territory of Ba and Kone river basin, Vietnam. The precipitation and temperature dataset of Ba and Kone river basin was collected from 17 climate, hydrology, rain gauge stations which allowed to create a bioclimatic map at a scale of 1:250.000. Three bioclimatic factors of thermal-moisture basic conditions such as annual temperature (TN), annual rainfall (RN), length of dry season (n) are selected as criteria system of Ba and Kone river basin’s bioclimate. In order to describe the relationships between bioclimatic variables and zonal vegetation units, the resulting map presented 12 bioclimatic units corresponding distribution of vegetation from low to high altitudes. By building bioclimatology map in Ba and Kone river basin, the government can develop sustainable agro forestry in Central Highlands and South Central Coast of Vietnam.