Tree Risk Assessment Manual

Tree Risk Assessment Manual PDF

Author: Julian A. Dunster

Publisher:

Published: 2017

Total Pages: 0

ISBN-13: 9781881956990

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"The practice and process of assessing trees for risk is detailed in ISA's Tree Risk Assessment Manual. This new manual is a valuable tool for both the expert and novice risk assessor, and will quickly become one of the most referenced resources on your bookshelf. As the companion publication for the Tree Risk Assessment Qualification course, the manual highlights the critical steps in the risk assessment process - from site analysis to risk evaluation and communicating risk to clients (and everything in between). This publication can be used as a resource to study for the qualification course, as a step-by-step guide to conducting a tree risk assessment, and as a desktop reference for writing reports. A Basic Tree Risk Assessment Form is included, along with a list of common wood decay fungi, and a useful glossary of risk assessment terms."--Publisher description

The World List of Threatened Trees

The World List of Threatened Trees PDF

Author:

Publisher: Bright Sparks

Published: 1998

Total Pages: 668

ISBN-13:

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Tree species are ecologically, culturally and economically valuable components of biodiversity and their conservation is essential to the well-being of people in all countries of the world. With increasing general pressures on ecosystems and selective pressures on species, it has become apparent that many tree species are threatened with extinction. The world list of threatened trees presents the results of the first survey of the conservation status of tree species worldwide.

Trees at Risk: Reclaiming an Urban Forest

Trees at Risk: Reclaiming an Urban Forest PDF

Author: Evelyn Herwitz

Publisher:

Published: 2001-01-01

Total Pages: 240

ISBN-13: 9781886284586

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From the Journal of Political Ecology, Vol. 8Trees At Risk: Reclaiming an Urban Forest, by Evelyn Herwitz. Worcester, MA: Chandler House Press, Inc (2001), iv, 200 pp.Reviewed by Brent Evans and Carolyn Chipman Evans, Cibolo Nature Center, Boerne, TXEvelyn Herwitz has contributed a major historical work with a strong environmental message in Trees At Risk: Reclaiming an Urban Forest. The City of Worcester, MA serves as the focal point for this evolving story of grassroots negligence and activism. The author is adept at uncovering the societal and industrial forces that carved a city out of the wilderness, and sometimes molded a little of the wilderness back into the city.An ambitious work, the book is a 200-page treasure with 16 pages of color photos, and numerous illustrations throughout. Nature lovers will also appreciate the occasional botanical information and illustrations of native trees.Trees At Risk is both a hopeful blueprint and a cautionary tale of what cities can do to protect and promote their urban forests, and what can happen if they do not. Ms. Herwitz is a skilled historian, but also a masterful wordsmith. For example: On a chill December afternoon when the hardwoods stand barren, their fallen leaves but sodden dregs of autumn's gold, Worcester's hues are clay and stone. Viewed from Mount St. James, once home to native Nipmucs, now to the College of the Holy Cross, the muted city melds with the dun-colored woodlands of surrounding hills - its red-brick factory buildings and cement offices crowding the valley floor, a glass-and-steel bank tower mirroring winter's slate sky, white and frown and beige three-deckers climbing rocky hillsides, the charcoal-gray swath of I-290snaking over streets.Come spring, though, there is green. First, a fine misting of chartreuse as the weeping willows unfurl their buds, then a wash of emerald as the sugar and Norway maples, the ashes, oaks and ginkgoes spread their leaves, until Worcester's swarthy face is softened by a sylvan veil. A city of aging factories and dreams of renewal, of ethnic pride and paternalism, of grit, ingenuity and determination, Worcester is also a city of trees.Her work reaches far beyond Worcester though, in its lessons and implications. She looks at the national picture of demising urban forests. Statistics abound: "the average life of a city tree is only 32 years - 13 if planted downtown - far short of the 150-year average life span of trees in rural settings." What's more, city tree planting and maintenance budgets have been slashed nationwide, and urban parks are also at risk. The story of the threat to Worcester's trees is the story of the relationship between Americans and nature - at times exploitative, at times romantic, and occasionally reverent. She gives a clear history of the local native landscape, and its gradual civilization. And, throughout the work she provides wonderful snippets of historical significance, like the quote from Genesis that English settlers liked to use to justify their taking of Native land: "Be fruitful, and multiply, and replenish the earth, and subdue it." But, the settlers proved far more accomplished at subduing than replenishing, as have their offspring, even to this day.The sad history of the wasting of trees, deforestation, and industrial transformation are detailed, as are early conservation efforts in the mid-eighteenth century, and the first use ofpublic funds for tree planting, a century later. She follows the trend of the romantic ideal of pastoral land in rural cemetery design, through to the "Greening or Worcester" in 1885 with the planting of 500 trees by the Worcester Grange.The book traces the urban parks movement, and the inevitable growing demand for green space as the city expanded. Then, it chronicles the turn of the century, and the theme of "Wilderness Squandered." As the Worcester case study continues, Ms. Herwitz examined politics, the railroad, the Hurricane of "38, the Great Depression, ethnic politics and public parks, the Chestnut Blight, and Dutch Elm Disease.As the 20th century gathered momentum, the early precursors to land use controls and planned communities are seen and followed up to current times. As budget cuts and benign neglect took hold, a legacy was being squandered, and the trend was national. "A 1991 survey of urban tree care programs in 20 major American cities by the national conservation group American Forests revealed that nearly three-fourths of those communities had cut back funding for street trees, despite the fact that they had collectively planted only abut one tree for every four needed just to maintain their current tree census."Thus, the powerful story of an urban forest, lost and found again and again, teaches us to open our eyes in our own hometowns. The author then calls us to action, using global numbers that we have almost grown numb to: In the past 50 years, global deforestation and exponential acceleration of fossil fuel consumption and methane gas production have raised the amount of carbon dioxide in the atmosphere to about 25 to 30 % above levels that have prevailed for thepast 160,000 years, and could double by the 21st century.The arctic ice cap has thinned by 42%.The world's coral reefs have thinned by 27%.Rainforests could disappear in 25 - 30 years.Air pollution, acid rainIt all adds up, or maybe we should say, it all subtracts, down, down, down.But, she also provides us with hope. She points to good stewardship in Milwaukee, and other positive examples around the country. And, she discusses modern economic forces that are driven by the pressure of population growth and basic human nature. These economic forces are then seen as possible sources of support for the future of our urban forests.Our suggestion is that our cities do in fact have the economic and technological resources to grow magnificent urban forests, but they lack the political will. Further, we would say that political will, rooted in the minds and hearts of the public, can be won through education. There is an old Chinese proverb: "Think one year ahead - plant rice; think ten years ahead - plant trees; think one-hundred years ahead - educate people."And, we would finally suggest that North America's 1200+ nature centers are good places to look to. Nature centers teach environmental values, and are vital members of their communities. While school districts may be slow to advocate for social action or conservation, nature centers are busily doing just that.The education of all citizens, not just the young and not-yet-enfranchised, but the adults, the property owners, the industrial leaders, and our civic representatives - all need education. However, sending them facts and figures, and even sending them this wonderful book, will probably not do the trick. They spend the vast majority oftheir lives indoors. They need contact with nature. If you want to educate someone about the value of trees, take them to an arboretum, or a nature center, or a fabulous old urban park. Once inspired, Trees At Risk can help any community organizer understand what mistakes to avoid, what social forces are in play, and just how much truly is at risk.Evelyn Herwitz deserves the thanks of all the tree-huggers, tree-lovers, and even those not yet educated and inspired. As a boy, Brent's one great and often expressed fear of growing up was that he might someday no longer want to climb trees. Well, he's 54, and still climbing (every now and then)!

Common Sense Risk Management of Trees

Common Sense Risk Management of Trees PDF

Author: National Tree Safety Group (Great Britain)

Publisher:

Published: 2011

Total Pages: 103

ISBN-13: 9780855388409

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New guidance is being published on trees and public safety in the UK. This comprehensive, practical guidance has been developed by the National Tree Safety Group to support the work of all those involved in tree management, whether in streets, parks, public open spaces, hotels, farms, private estates, woodland, commercial forests or private gardens.

Rare Trees

Rare Trees PDF

Author: Sara Oldfield

Publisher: Hachette UK

Published: 2023-03-21

Total Pages: 936

ISBN-13: 1643260103

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Discover the secrets and beauty of the world’s rarest trees in this fantastic book filled with more than 300 color photographs. Forests cover nearly a third of the world's surface, and the trees that make them up include a staggering diversity of more than 60,000 species. Individual trees play specific ecological roles in their unique environments—and they have adapted to thrive on steep mountains, in cloud forests, on dry savannahs, in parched deserts, and in tropical wetlands. Our history, and our future, are interwoven with the trees that define the regions of our green planet. Rare Trees profiles over 60 unique species that are currently endangered—including the most charismatic, fascinating, and downright bizarre examples from all around the globe. Filled with hundreds of color photographs, maps to help readers identify habitats, and accessible and engaging text by tree experts from the Global Trees Campaign, Rare Trees will give readers a new appreciation for the importance of trees and will inspire them to preserve this critical canopy of life.

Trees in Trouble

Trees in Trouble PDF

Author: Daniel Mathews

Publisher: Catapult

Published: 2020-04-07

Total Pages: 305

ISBN-13: 1640091351

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A troubling story of the devastating and compounding effects of climate change in the Western and Rocky Mountain states, told through in–depth reportage and conversations with ecologists, professional forest managers, park service scientists, burn boss, activists, and more. Climate change manifests in many ways across North America, but few as dramatic as the attacks on our western pine forests. In Trees in Trouble, Daniel Mathews tells the urgent story of this loss, accompanying burn crews and forest ecologists as they study the myriad risk factors and refine techniques for saving this important, limited resource. Mathews transports the reader from the exquisitely aromatic haze of ponderosa and Jeffrey pine groves to the fantastic gnarls and whorls of five–thousand–year–old bristlecone pines, from genetic test nurseries where white pine seedlings are deliberately infected with their mortal enemy to the hottest megafire sites and neighborhoods leveled by fire tornadoes or ember blizzards. Scrupulously researched, Trees in Trouble not only explores the devastating ripple effects of climate change, but also introduces us to the people devoting their lives to saving our forests. Mathews also offers hope: a new approach to managing western pine forests is underway. Trees in Trouble explores how we might succeed in sustaining our forests through the challenging transition to a new environment.