1. To disclose the basic features of changes in land surface hydrology and vegetation activity during recent 30 years, and to understand the response of the hydrology and vegetation to climate change as well as related mechanisms.
2. To explore the possible linkages and physical processes between the changes of land surface hydrology and vegetation activity.
3. To evaluate the feedback of hydrology and vegetation on regional climate.
4.To explore possible impacts of aerosol on the regional land-atmosphere interaction over this region together with related mechanisms.
5. To investigate the impact of anthropogenic aerosols on land-atmosphere interactions and climate.
