Hydrological dimension of catchments

The quantification and integration of hydrological and biological processes at the basin scale is based on the assumption that abiotic factors are of primary importance when become stable and predictable, then biotic interactions start to manifest themselves. The quantification covers the key elements of hydrological cycle (precipitation, evapotranspiration), patterns of hydrological pulses along the river continuum and monitoring of point and nonpoint source pollution, erosion, habitat degradation. The integration of information about hydrological cycle inputs and economical distribution provide a template to regulate processes toward sustainable water and ecosystem resources use. IHP will support research and capacity building initiatives aimed to improve the understanding of the inter-linkages of ecohydrological processes at the catchment scale with special emphasis on implementation at UNESCO EH demonstration sites.