Ruin & Recovery
Ruin & Recovery

Author: Dave Dempsey

Publisher: University of Michigan Press

Published: 2001

Total Pages: 372

ISBN-13: 9780472067794

DOWNLOAD EBOOK

A history of Michigan's conservation efforts

Trees of Michigan and the Upper Great Lakes
Trees of Michigan and the Upper Great Lakes

Author: Norman Foster Smith

Publisher: Thunder Bay Press Michigan

Published: 1995

Total Pages: 188

ISBN-13:

DOWNLOAD EBOOK

Of Michigan's great wealth of natural resources, few have been more important in the past or are more highly valued today than our forests and the trees which compose them. Not only are they a continuous source of raw materials for industry and agriculture but they affect the climate, water resources, and soil, purify our air, furnish food and shelter for wildlife and are indispensable to our vast recreational and scenic areas. They form a basic part of our diverse natural environment - our ""biodiversity."" Their protection and management are vital to the state's wellbeing. Industries which depend upon trees for their existence are major employers and rank high in the state's economy. The annual production and manufacture of forest products is measured in billions of dollars. The recreation ""industry,"" including vacation travel, resorts, food, lodging, hunting, fishing, and camping, is likewise a multi-billion dollar a year business. Equally important is the intangible wealth which trees bring to us through sheer enjoyment of beauty and love of nature. Whether in field, fencerow, woodlot or forest, or along highways, rural roads, urban streets, or greenbelts, this bounty is ours for the taking. We have only to picture ourselves without trees to appreciate this value.

Woody Biomass for Bioenergy Production
Woody Biomass for Bioenergy Production

Author: Jaya Shankar Tumuluru

Publisher: MDPI

Published: 2021-03-05

Total Pages: 179

ISBN-13: 3039439936

DOWNLOAD EBOOK

Woody biomass is most widely used for energy production. In the United States, roughly 2% of the energy consumed annually is generated from wood and wood-derived fuels. Woody biomass needs to be preprocessed and pretreated before it is used for energy production. Preprocessing and pretreatments improve the physical, chemical, and rheological properties, making them more suitable for feeding, handling, storage transportation, and conversion. Mechanical preprocessing technologies such as size reduction and densification, help improve particle size distribution and density. Thermal pretreatment can reduce grinding energy and torrefied ground biomass has improved sphericity, particle surface area, and particle size distribution. This book focuses on several specific topics, such as understanding how forest biomass for biofuels impacts greenhouse gas emissions; mechanical preprocessing, such as densification of forest residue biomass, to improve physical properties such as size, shape, and density; the impact of thermal pretreatment temperatures on woody biomass chemical composition, physical properties, and microstructure for thermochemical conversions such as pyrolysis and gasification; the grindability of torrefied pellets; use of wood for gasification and as a filter for tar removal; and understanding the pyrolysis kinetics of biomass using thermogravimetric analyzers.

Introduction to Forestry and Natural Resources
Introduction to Forestry and Natural Resources

Author: Donald L. Grebner

Publisher: Academic Press

Published: 2021-01-19

Total Pages: 513

ISBN-13: 0128190760

DOWNLOAD EBOOK

Introduction to Forestry and Natural Resources, Second Edition, presents a broad, completely updated overview of the profession of forestry. The book details several key fields within forestry, including forest management, economics, policy, utilization and forestry careers. Chapters deal specifically with forest regions of the world, landowners, forest products, wildlife habitats, tree anatomy and physiology, and forest disturbances and health. These topics are ideal for undergraduate introductory courses and include numerous examples and questions for students to ponder. There is also a section dedicated to forestry careers. Unlike other introductory forestry texts, which focus largely on forest ecology rather than practical forestry concepts, this book encompasses the economic, ecological and social aspects, thus providing a uniquely balanced text. The wide range of experience of the contributing authors equips them especially well to identify missing content from other texts in the area and address topics currently covered in corresponding college courses. - Covers the application of forestry and natural resources around the world with a focus on practical applications and graphical examples - Describes basic techniques for measuring and evaluating forest resources and natural resources, including fundamental terminology and concepts - Includes management policies and their influence at the local, national and international levels