Table 3.

Key challenges to modeling soil supporting and degrading processes.

Key challenges s
Challenge 1To quantify and predict the development of soil heterogeneity across a broad range of space and time scales. This includes soil structural dynamics and preferential flow paths.
Challenge 2To better integrate key biophysical processes including spatial consideration of organismal traits with ecological interactions at appropriate spatial and temporal scales.
Challenge 3To better link nutrient dynamics and availability in soils with hydrological and biogeochemical processes.
Challenge 4To combine soil modeling tools with management tools to better assess degradative processes.
Challenge 5To improve water, erosion and sediment routing modeling in complex landscapes.