a product that often gives carbon-rich soils their characteristic dark color (Fig. 2). These various forms of SOC differ in their recalcitrance, or resistance to decomposition. Humus is highly ...

offering a self-contained and integrated overview of the field as it now stands for advanced undergraduate and graduate students in soil science, environmental science, and the wider Earth sciences.

All plants require 17 elements to complete their life cycle, and an additional four elements have been identified as essential for some plants (Havlin et al. 2005). With the exception of C, H, and ...

This book will appeal to individuals from a number of disciplines and sub-disciplines who find soils interesting, including pedology, soil geomorphology, earth system science, environmental science ...

There are three main British soils; podzol, brown earth and gley. Podzols are easily recognisable by their distinct layers or horizons. A grey or light-coloured 'E' horizon is the result of severe ...

Brown earth soils are widespread in Britain, except in highland areas. Soil organisms, like earthworms, mix the materials together, merging the boundaries between the horizons. These soils are ...

sometimes dubbed "the nastiest soils on Earth" because of the threat they pose to ecosystems. Acid sulfate soils become ...