Modeling Semi-arid Water-Soil-Vegetation Systems

Water-soil-vegetation dynamic nexuses affect, and are affected by, both human activity and climate change. Inappropriate land management practices can result in soil and vegetation degradation, which in turn will likely alter natural hydrologic processes, leading to more frequent and severe flooding and drought. In response, an altered hydrologic condition tends to prompt soil erosion by wind and water, which can cause further vegetation degradation or even loss. Such nexuses will likely become more interwoven in changing climate because the non-stationary climate can further deteriorate the already-altered hydrologic condition. So far, our understanding is incomplete regarding how such nexuses maintain or break equilibriums between water, soil, and/or vegetation in terms of eco-environmental resilience. This book: 1) conceptualises the interrelated physical processes of water-soil-vegetation systems; 2) introduces mathematical models for simulating the processes; and 3) develops a variety of modelling cases of selected systems across the world. Key Features Includes both fundamental principles and practical applications Emphasizes semiarid water-soil-vegetation nexuses rather than individual processes Deciphers dynamics and interrelations of the physical processes of semiarid water-soil-vegetation systems Addresses impacts of climate change from practical management perspectives Maximizes readability by including illustrations, pictures, and annotated equations