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<p>The role of soil water retention is profound; its effects are far reaching and relationships are invariably complex. it is a key part of the hydrological cycle provides support to organisms interacts with climate and is a major consideration in ground and surface water supply environmental and geo-technical aspects.</p><p>Soils can process and contain considerable amounts of water. They can take in water and will keep doing so until they are full or until the rate at which they can transmit water into and through the pores is exceeded. Some of this water will steadily drain through the soil and end up in the waterways and streams but much of it will be retained away from the influence of gravity for use of plants and other organisms to contribute to land productivity and soil health. The soil’s ability to retain water is strongly related to particle size; water molecules hold more tightly to the fine particles of a clay soil than to coarser particles of a sandy soil so clays generally retain more water. Conversely sands provide easier passage or transmission of water through the profile. Clay type organic content and soil structure also influence soil water retention.</p><p>This book explores the subject in detail and would be beneficial for students.</p>
