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The soil is a fundamental constituent of the Earth's system, maintaining a careful state of equilibrium within the biosphere. However, this natural balance is being increasingly disturbed by a variety of anthropogenic and natural processes, leading to the degradation of many soil environments. Soil Management provides a comprehensive and authoritative introduction to the many problems, challenges and potential solutions facing soil management in the twenty-first century. Covering a range of topics, including erosion, desertification, salinization, soil structure, carbon sequestration, acidification and chemical pollution, the book also develops a prognosis for the future of soil management in the face of growing populations and global warming. Written with the needs of students in mind, each chapter provides a broad overview of a problem, analyses approaches to its solution and concludes with references and suggestions for further reading. Soil Management will be of great value to environmental science and geography undergraduates taking soil management courses in their second or third year.

Drawing on the stories and struggles of hundreds of young men and women who have pursued finding true love, Fileta helps readers bypass unnecessary pain while focusing on the things that really matter in the world of dating. Gem Identification Made Easy is the first and only book that explains in non-technical terms how to identify diamonds and colored gems, and how to separate natural gems from imitations, treated stones, synthetics, and look-alikes. The book's approach is direct and practical, and its style easy to understand. In fact, with this highly accessible guide, anyone can begin to master gem identification. Includes over 150 photographs and illustrationsover 80 in full color!Using a simple, step-by-step system, the authors explain how to properly use essential but uncomplicated instruments to identify stones, what to look for gemstone by gemstone, and how to set up a basic lab at modest cost. Three of the instruments are inexpensive, portable, pocket instruments that, when used together, can identify almost 85% of all precious and popular stones.The key to avoiding costly mistakes and recognizing profitable opportunities is knowing both Soil Management : Problems and Solutions free epub what to look for and what to look out for.Gem Identification Made Easy will help you: Open your eyes to the types of treatments, imitations, synthetics, look-alikes, and fakes in the gem market today.Learn how to tell the difference between them. Quickly spot: Synthetics, including synthetic emeralds and diamondsFilled diamondsDiffused "blue" sapphires and "red" rubiesHPHT-treated diamonds... and much more!Determine how to spot the newest "composite" imitations.Learn how to identify recently discovered gems such as Mandarin garnet, red emerald, and North Carolina's chromium-rich emeralds.Discover new treatments such as surface coatings to create fancy color diamonds and improve or change the color of many gemstones.Know when to seek help from a professional gemologist or lab.Become more professional in your business or hobby."

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Author: Michael A. Fullen,John A. Catt
Number of Pages: 288 pages
Published Date: 28 Oct 2004
Publisher: Taylor & Francis Ltd
Publication Country: London, United Kingdom
Language: English
ISBN: 9780340807118
Download Link: Click Here
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