Impact of anthropogenic activity on eco-hydrological process in continental scales

In China, hydro-climate is diverse between north and south. Here process-based eco-hydrology model was coupled with complex sub-systems to develop coupled human and natural systems and to analyze impact of anthropogenic activity on eco-hydrologic change in continental scales. The model presented impact of irrigation on eco-hydrological processes. Furthermore, spatial pattern of Time-Integrated Normalized Difference Vegetation Index (TINDVI) gradient in agricultural fields showed heterogeneous characteristics of crop yield, which implied the increase in irrigation water use is one of the reasons for the increase in crop production. These results suggest strongly the needs of trans-boundary and -authority solutions of water management for sustainable development under sound socioeconomic conditions contributory to national and global securities. (C) 2011 Published by Elsevier B.V. Selection and/or peer-review under responsibility of School of Environment, Beijing Normal University.