Principles of Soilscape and Landscape EvolutionComputational models are invaluable in understanding the complex effects of physical processes and environmental factors which interact to influence landform evolution of geologic time scales. This book provides a holistic guide to the construction of numerical models to explain the co-evolution of landforms, soil, vegetation and tectonics, and describes how the geomorphology observable today has been formed. It explains the science of the physical processes and the mechanics of how to solve them, providing a useful resource for graduates studying geomorphology and sedimentary and erosion processes. It also emphasises the methods for assessing the relative importance of different factors at field sites, enabling researchers to select the appropriate processes to model. Integrating a discussion of the fundamental processes with mathematical formulations, it guides the reader in understanding which processes are important and why; and creates a framework through which to study the interaction of soils, vegetation and landforms over time. |
Contents
Constructing a Landscape Evolution Model Basic Concepts | 11 |
A Brief Hydrology and Geomorphology Primer | 26 |
Erosion and Other WaterDriven Processes | 49 |
Constructing a Soilscape Evolution Model Basic Concepts | 87 |
Chemical Weathering | 119 |
Slow Soil Flow and Creep | 152 |
Colloids and Soil Organic Carbon | 163 |
Constructing a Soilscape Evolution Model Details and Examples | 178 |
Tectonics and Geology | 190 |
HighSlope Gravity Processes | 205 |
Vegetation and Wildfire | 228 |
Constructing a Landscape Evolution Model Details | 255 |
Examples of Landscape Evolution Modelling and Final Thoughts | 270 |
292 | |
320 | |
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Common terms and phrases
acid armour assumed average bedrock behaviour biomass bioturbation bulk density calibration carbon catchment channel Chapter chemical weathering climate components concentration coupled crust debris flow decreases deposition detachment-limited discharge discussed distribution downslope downstream dynamics effect elevation energy entrainment Equation equilibrium eroded erosion models erosion rate exponential field Figure fiow fire floodplain fraction geomorphology grading hillslope humped hydrology hypsometric curve impact increases infiltration interaction interface kinematic wave landform evolution model landscape evolution landslide layer leachate limitation load mantle mass balance material matrix mineral node occurs organic matter parameters particles physical weathering porosity processes range relative result river rock runoff saprolite scale sediment transport shear stress shows simulate slope soil depth soil moisture soil production soil production function soil profile soil surface soilscape spatial substrate term timestep tion transport capacity transport-limited tree throw typically variability vegetation velocity vertical weathering rate Willgoose