Should damaged trees be clear cut and replanted or allowed to recover naturally? Is the deer herd large enough to survive hunting pressure? Managing forest resources entails numerous decisions. Making these decisions intelligently requires sound information about the resource in question. Ideally, assessments should be based on the entire populatio

Should damaged trees be clear cut and replanted or allowed to recover naturally? Is the deer herd large enough to survive hunting pressure? Managing forest resources entails numerous decisions. Making these decisions intelligently requires sound information about the resource in question. Ideally, assessments should be based on the entire population involved. However, the costs in time and money often prevent this, and evaluations - or sampling - are done on a small portion of the whole. The most complete treatment of systematic sampling in one volume, Forest Sampling Desk Reference explains the uses and limitations of individual sampling designs in forest inventory operations. This text contains detailed derivations of the most commonly used statistical methods in forestry. It provides examples that highlight the statistical methods. The author covers probability and probability distributions and the development of logical regression models. The text discusses systematic sampling, describing its benefits and shortcomings in detail. It provides an in depth examination of the controversial 3-P sampling procedure. The validity and strength of sampling results vary from option to option, along with their costs in terms of money and time. Before selecting a sampling procedure you need to know their strengths and weaknesses in relation to their expense. Forest Sampling Desk Reference supplies the background necessary for making these decisions.

Sound forest management planning requires cost-efficient approaches to optimally utilize given resources. Emphasizing the mathematical and statistical features of forest sampling to assess classical dendrometrical quantities, Sampling Techniques for Forest Inventories presents the statistical concepts and tools needed to conduct a modern for

Continuing a tradition of excellence spanning over forty years, the Fifth Edition of Forest Measurements supplies forestry students at all levels with the concepts and methods they need for future success. The authors present timber measurement techniques applicable to any tree inventory regardless of management objectives. Assuming only some background in algebra and plane trigonometry, basic statistical concepts are included, ensuring that even introductory students benefit from the book’s concise explanations. Thorough coverage of sampling designs, land measurements, tree measurements, forest inventory field methods, and growth projections ensures utility for foresters throughout their education and beyond. Chapters on aerial photographs and GIS introduce readers to these powerful measurement tools, and the concluding chapter expands the techniques discussed to encompass other natural resources such as rangelands, wildlife, and water. Exceptionally readable and clear, the book includes many photographs and illustrations, numerous numerical examples, and a bibliography to enhance the reader’s understanding of the material.

The contributions of forests to the well-being of humankind are far-reaching. Forests provide vital wood supplies and help to combat rural poverty, ensure food security and provide decent livelihoods; they offer promising mid-term green growth opportunities; and they deliver vital long-term environmental services, such as clean air and water, biodiversity, and mitigation of climate change. Building on data that is more comprehensive and reliable than ever before, covering 234 countries and territories, the Global Forest Resources Assessment 2015 shows encouraging signs of improved forest management and a global slowdown in deforestation. However these trend needs to be strengthened, especially in countries that are lagging behind. This desk reference provides the data reported by countries for the Global Forest Resources Assessment 2015. Presented in easy-to-consult tabular form, it is a useful companion to the synthesis report as well as to the more detailed figures available on the Forest Land Use Data Explorer website.

An illustrated compendium of information on plants and their diverse therapeutic properties and benefits brings together folklore, scientific research, and medical theory to describe hundreds of plants and their origins.--

An illustrated compendium of information on plants and their diverse therapeutic properties and benefits brings together folklore, scientific research, and medical theory to describe hundreds of plants and their origins.--

People all over the world are confronted by issues such as poverty, a lack of access to quality education, unaffordable and or inadequate housing, and a lack of needed health and mental services on a daily basis. Due to these issues, there is a need for social workers who have access to relevant and timely scholarly materials in order to meet the needs of those facing these issues. The social, psychological, and biological factors resulting from these issues determine the level of a person's mental health at any given point in time and it is necessary for social workers to continue to evolve and develop to the new faces and challenges of the times in order to adequately understand the effects of these issues. In the first and second editions of the Social Workers' Desk Reference, the changes that were occurring in social work practice, education, and research were highlighted and focused upon. This third edition continues in the same tradition and continues to respond to the changes occurring in society and how they are impacting the education, research, and practice of social work as a whole. With 159 chapters collaboratively written by luminaries in the profession, this third edition serves as a comprehensive guide to social work practice by providing the most recent conceptual knowledge and empirical evidence to aid in the understanding of the rapidly changing field of social work. Each chapter is short and contains practical information in addition to websites and updated references. Social work practitioners, educators, students, and other allied professionals can utilize the Social Workers' Desk Reference to gain interdisciplinary and interprofessional education, practice, and research.