This research has been motivated from the need and condition of spatial planning and integrated river basin management in Vietnam, particularly the selected area for case study, Tra Khuc River Basin. The main objective is to assess landscape character in the area combining with watershed approach to propose orientations for rational resource use, environmental protection and integrated watershed management in the case study area. And the objectives of the research are as follows: - To explore and understand the landscape character of the area, such as geology, geomorphology, soils, vegetation, land use, human settlement, etc. - To time-series analyst landscape character in river subwatershed scale. - To model scenarios of landscape and nutrient transport changes.