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Michigan Trees: A Handbook of the Native and Most Important Introduced Species by Charles Herbert Otis Pdf
The idea of a bulletin devoted entirely to the study of certain phases of tree life in Michigan, was thought to stimulate interest in the study of our trees, and influence many more people to associate themselves with the growing number of tree lovers and with the supporters of the movement for better forest conditions in the state. The distinctive feature of the bulletin lies in its keys. The keys commonly published are based upon characters which are present but a short time during the year, or which can be used only by an advanced student of botany. This bulletin presents two keys. One is based upon characters which are present all summer; the other uses the winter characters as a basis for identification. By the use of the keys any person should be able to name and learn the characteristics of the trees of Michigan at any time of the year. These keys should prove of special value to our students in the public schools, to members of nature study clubs, and to the students in the forestry schools of the state.
Trees of Michigan and the Upper Great Lakes by Norman Foster Smith Pdf
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.
Burton V. Barnes,Christopher E. Dick,Christopher W. Dick,Melanie E. Gunn
Author : Burton V. Barnes,Christopher E. Dick,Christopher W. Dick,Melanie E. Gunn Publisher : University of Michigan Press Page : 441 pages File Size : 54,9 Mb Release : 2016-09-08 Category : Nature ISBN : 9780472036257
"By 1910, the forest region of the Great Lakes states was largely denuded, logged over by industrialists who coveted its timber, particularly the giant white pine. After unsuccessful attempts to farm this "cutover" region of Minnesota, Wisconsin, and Michigan, a group of visionaries began to dream of restoring the North Woods as a place of solace and beauty, of recreation and retreat, for the benefit of people ever more remote from the splendors of nature. What ensued was an extraordinary campaign to recreate the original Midwest forest - the Great Lakes Crusade that James Kates chronicles in this enlightening, deeply interesting, and entertaining account of a "natural" wonderland remade from the ground up."--BOOK JACKET.Title Summary field provided by Blackwell North America, Inc. All Rights Reserved
The Great Lakes have been central to the development of eastern North America. In this “beautifully designed, comprehensive gem of a guide to the ecosystem at the heart of Canada” (The Tyee), award-winning science and nature writer Wayne Grady makes scientific concepts accessible as he reveals how human impact has changed this life-giving region. The Great Lakes: A Natural History of a Changing Region is the most authoritative, complete and accessible book to date about the biology and ecology of this vital, ever-changing terrain. Written by one of Canada's best-known science and nature writers, it is intended not only for those who live in the Great Lakes region, but for anyone captivated by the splendor of the natural world and sensitive to the challenges of its preservation. It is both a first-hand tribute and an essential guide to a fascinating ecosystem in eternal flux.
The Great Lakes contain about 6 quadrillion gallons (23 quadrillion liters) of fresh water. That is enough to cover the entire United States with water 9.5 feet (2.9 meters) deep. Discover more in Great Lakes, one of the titles in the Natural Wonders of the World series
Ecology of a Managed Terrestrial Landscape by David Euler,Ajith H. Perera,Ian Douglas Thompson Pdf
An examination of the big picture of ecological patterns and processes through a detailed case study of the vast managed forest region of Ontario. The book synthesizes ecological landscape knowledge, explores gaps in understanding, and offers suggestions for future directions.