Leon Bren – författare

This book provides a series of exercises of various types covering matters of hydrology and watershed management. The exercises include true/false questions, multiple choice questions, and numeric, graphical, and analytical exercises. The questions draw on the basic disciplines of hydrology and physics, with some stress placed on correct or appropriate units. The questions reflect the authors' many years of teaching watershed management at undergraduate and graduate levels. Questions cover: 1. Terminology and measurement of flow (and units) 2. Quantifying stream networks 3. Concepts of water balance and evapotranspiration 4. Slope recharge, groundwater hydrology, and water-table/phreatic aquifers 5. Single and paired watershed experiments 6. Impacts of fires on watersheds 7. Concepts and measurements of water quality 8. Flooding forests 9. Valuation of water 10. Protection of forest stream by buffers 11. Urban watershed concepts The book is self-contained, and designed to be used at any time in any place, either for revision or as source material for teaching. The work is graded so that easier questions are presented early, followed by harder questions. Answers are concise but contain enough information to help students study and revise on a topic-by-topic basis. The book concludes with suggestions for student exercises and projects and is an invaluable resource for both students and instructors.

Forests cover about a third of the world's land surface area. They represent a distinct biotic community, provide a living for many millions of people, and provide fresh water to sustain communities. Forests capture part of the precipitation and pass the remainder into the soil. Some of this is then passed back to the atmosphere along with some to streams as a regulated outflow. Forest cover is generally the preferred land-use for clean water supplies, recreation, tourism, and other ecosystem benefits around the world. In many cases the value of the water exceeds the value of other forest products. The discipline "forest hydrology" was developed in the 19th and 20th Century with the aim of putting such water cycling processes into a scientific framework incorporating forest watershed management. The 21st Century has seen proliferations of new technologies that have changed society, our living environment, and this discipline. Forests are also facing unprecedented threats from land conversion, fire, drought, and the changing climate. The discipline of forest hydrology must address these issues with innovation and new ideas. The 2nd Edition of Forest Hydrology: - Presents advances of understanding of key forest hydrologic processes (particularly evapotranspiration) - Presents cutting-edge thinking and assessments in global forest hydrology, including state-of-the-art modelling and methodologies - Presents innovative findings about the impacts of forest fires on the rate of catchment formation and how past fires have led to the catchments we take for granted - Describes the latest challenges facing forest hydrology, such as increased occurrences of disturbance due to extreme precipitation and floods, drought, disease, fire, and their association with climate change - Reviews the latest perceptions of the value of forested catchments compared to alternatives such as desalination plants - Is written by an internationally renowned team of scientists, engineers, and forest managers to give a well-rounded view of the subject This book is essential reading for graduate students, professionals, land managers, practitioners, and researchers with a good understanding of the basic principles of hydrology and hydrologic processes.

This book provides scientific evidence to underline the notion that forests offer the most reliable water catchments in the natural environment.

This book provides scientific evidence to underline the notion that forests offer the most reliable water catchments in the natural environment. The unique Australian ecosystem provides valuable information on the water yields and hydro-ecology of forests. Insights can be transferred to other climate zones and conditions. In this second edition, the author puts a particular focus on the most prominent challenges of our time, in relation to water management. Ground salinity, climate change, and droughts have all been newly added to this updated edition. One of the most important concepts is highlighting the accumulated contribution of smaller catchments and minor streams. Finally, readers will also get information on the economic dimension of water management. With its incisive, disciplined, and quantitative (and occasionally humorous) approach, this book helps scientists, students, and regulators to understand water-driven conflicts andoffers guidance on management.