Land use in the Greater Mekong Subregion (GMS)  is undergoing  serious alteration. The region has increasingly become part of the global economy due to the impacts of globalization and remarkable improvements in infrastructure. This results in far-reaching and often unpredictable impacts on man and his environment.  Specifically,  the socio-economic situation  of rural people as well as the exceptional  biological diversity are affected.  Within the GMS,  Xishuangbanna is famous for its cultural and environmental diversity and therefore well suited for a case study on land-use changes
and its consequences.
　　  The goal of development should be the sustainable improvement of living conditions  taking into account the preservation of environmental services and capacities. In the GMS biodiversity is not only worth to be protected because of its ecological  uniqueness  but also because of its potential economic value. 
　　 The sustainability of development and land-use change processes requires the understanding of the underlying driving forces as well as the consequences of  specific decisions.  It  has been, therefore,  the  objective of this research co-operation to  analyse  social, economic, and ecological framework conditions in Naban  River Watershed  National Nature Reserve  and  the  possible consequences of land-use change. Based on this analysis we developed a GIS-based scenario tool for modelling development trajectories on regional scale. Such a modelling tool supports the assessment of land-use change with regard to their social, economic, hydrological and ecological implications. The overall framework can be used in  decision making processes  affecting  land-use patterns.