Coupled Dynamics in Soil

Coupled Dynamics in Soil

Author: Yijian Zeng

Publisher: Springer Science & Business Media

Published: 2012-12-14

Total Pages: 175

ISBN-13: 3642340733

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In arid and semi-arid areas, the main contributions to land surface processes are precipitation, surface evaporation and surface energy balancing. In the close-to-surface layer and root-zone layer, vapor flux is the dominant flux controlling these processes - process which, in turn, influence the local climate pattern and the local ecosystem. The work reported in this thesis attempts to understand how the soil airflow affects the vapor transport during evaporation processes, by using a two-phase heat and mass transfer model. The necessity of including the airflow mechanism in land surface process studies is discussed and highlighted.


Sand Dunes of the Northern Hemisphere

Sand Dunes of the Northern Hemisphere

Author: Qi Lu

Publisher: CRC Press

Published: 2023-03-10

Total Pages: 445

ISBN-13: 1000588998

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This book in two volumes, and with a foreword by the renowned Professor M.A.J. Williams, draws on evidence from coastal and inland regions, including desert dunes, wind-blown dust, river and lake sediments, glacial moraines, plant and animal fossils, isotope geochemistry, soils and prehistoric archaeology to better understand the genesis and development of dunes systems in selected northern hemisphere sand dunes from Asia, Africa and the Middle East regions. The collection of research papers and case studies that are presented in this book provide the reader with a wealth of information about the distribution and types of sand dunes and an insight into the complexity of sand dune formation, migration and management. Research in many countries across the northern hemisphere shows that dunes, whether coastal or inland, are under pressure around the world. Much of the pressure comes from human activities, and the anthropogenic disturbance, when coupled with global warming and alterations to the amount, frequency and temporal distribution of precipitation could lead to more serious management challenges in the future. There is much that we still need to find out about the origin, genesis and development of sand dunes so that they can be managed better. The difficult and complex questions being repeatedly raised can be answered only by interdisciplinary endeavours. Geomorphologists, geologists, palaeontologists, climatologists, ecologists, and others, can work together on research projects that better define the origin, evolution and development of dunes, both inland and along the coasts. Many chapters in this book attempt to reconstruct past climatic changes in deserts and their margins at a variety of scales in space and time in the expectation that such information might assist in preparing us for future global warming and drying.


Wadi Hydrology

Wadi Hydrology

Author: Zekai Sen

Publisher: CRC Press

Published: 2008-03-24

Total Pages: 368

ISBN-13: 1420061550

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The literature of hydrology abounds with texts on the hydrological and water resource problems in humid regions. However, this is not the case for the arid or semi arid regions. The situation is exemplified by the fact a concrete definition for the termwadi as accepted by UNESCO for describing these areas, is difficult to find.Arguably the


Groundwater of South Asia

Groundwater of South Asia

Author: Abhijit Mukherjee

Publisher: Springer

Published: 2018-06-01

Total Pages: 796

ISBN-13: 9811038899

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This book presents recent findings from the South Asian region (SA), broadly including groundwater studies on (a) quantity, (b) exploration, (c) quality and pollution, (d) economics, management and policies, (e) groundwater and society, and (f) sustainable sources. It offers a compilation of compelling, authentic insights into groundwater scenarios throughout the water-stressed South Asia region. Comprising Afghanistan, Bangladesh, Bhutan, India, Myanmar, Nepal, Pakistan, and Sri Lanka, it is the most densely populated region in the world: It occupies approximately 4% of the global land area but supports more than 25% of the global population. The SA region now faces an acute shortage of fresh water due to a rapid rise in water demand and changes in societal water-use patterns. Combining essential advances and perspectives, this book offers a valuable resource for all scientists, planners and policymakers who are interested in understanding and developing the SA and other related areas.


Quaternary Deserts and Climatic Change

Quaternary Deserts and Climatic Change

Author: A.S. Alsharhan

Publisher: CRC Press

Published: 2020-08-27

Total Pages: 644

ISBN-13: 1000150550

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These proceedings record the results of climate change in many areas which are hyper-arid deserts today but which, almost cyclically, at intervals of thousands or even hundreds of thousands of years, have had a much more humid climate.


Progressive Development

Progressive Development

Author: Arie S. Issar

Publisher: Springer Science & Business Media

Published:

Total Pages: 155

ISBN-13: 3642106412

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The book is based on the results of the investigations of the authors in the semi-arid and arid regions (ASAR) of the globe. These investigations brought to the conclusion that the warming climate will cause the drying up of the water resources in these regions. In this case the principles of Sustainable Development will not be able to avert forthcoming catastrophes. These conclusions brought to the compilation of the policy of "Progressive Development", emphasising investment in the development of new water resources and changing the natural environments while advancing the local populations on the dimension of knowledge by education