Remote sensing (RS) and Geographic information system (GIS) is widely applied in
the world and gradually affirms its role in Vietnam in managing agricultural and forest resources.
This application is highly effective, providing information timely for managers to make
decisions and build development strategies. In this study, RS and GIS were integrated to assess
suitability for key crop species in Dak Nong province including coffee, rubber, cashew, and
durian based on their suitability to site conditions such as soil (soil type, soil texture, soil
thickness), topography (elevation, slope) and climate (temperature, precipitation). Using the
restrictive method and overlapping map layers of natural factors, classified into adaptive levels
according to FAO (1976). Results show that most land areas in Dak Nong province have
different levels of potential suitability for key crop species ranging from non-adaptive to lessadaptive and moderately adaptive. However, most suitable areas for key crops are only at low
(accounting for a large proportion) and the average adaptation level. The findings from the study
are the scientific information for managers to make decisions regarding the structure of major
crops in the province.