Task 4

Constructing river network and river reach models for river functioning

Factoring out the effects that land use legacies have on river reach functioning rates needs to separate the natural variability on river reach factors from the variability due to the effect of land use legacies. Moreover, land use legacies can affect different river system components (hydrology, morpho- dynamics or water quality) that interact with each other and will in turn affect biological communities and functioning rates. This difficulty can only be tackle through a well ordered field design in which the responses of each component can be separated. This can only be achieved with a high number of sites (>100) that can be split in different groups and gradients so that a factor might be kept constant while looking at how other factors control the variability of the response variables. Following, we will describe how we will analyse all the RIVERLANDS information and how we will build spatial and temporal models of different river functioning rates that might be useful for integrated catchment management planning.

Subtask 4.1.- Analysing the effect of land use legacies on river functioning rates

Subtask 4.2.- River functioning network model

Subtask 4.3.- Exploring the creation of a river reach functioning model