multidisciplinary study of the paleoenvironmental history of the ridge and slough landscape is justified in this regard.
Because it is not clear whether the ridge and slough landscape is maintained by average or extreme conditions, it is important that monitoring be designed to provide integrated measurements of flow and sediment transport for the full range of flow conditions, especially including extreme events. This will be challenging and expensive, and measurement sites should be co-located with sites where other related research on the ridge and slough landscape is occurring. In this context, the connectivity of sloughs at different water elevations might prove useful in understanding directions and magnitudes of flow under different conditions. This measure will depend heavily on detailed and highly precise topographic information in the landscape.
Given the potential role of flow in landscape maintenance, restoration efforts should attempt to incorporate flows approximating historical discharges, velocities (speed and direction), timing, and distribution in their design. However, development of numeric performance measures for speed of flow would not be appropriate until there is a better scientific understanding of the processes that underlie maintenance of ridges and sloughs, including flows, levels, extreme events, and fire, and their interactions. At present neither a minimum nor a maximum flow to preserve the landscape can be established.