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4 kirjaa tekijältä Ellen E. Wohl

Of Rock and Rivers

Of Rock and Rivers

Ellen E. Wohl

University of California Press
2009
sidottu
This beautifully written and deeply personal collection of essays paints a progressive view of the American West as seen by a geologist. Ellen Wohl traces her twenty years of living and conducting research in the natural landscapes of the West as she investigates the conflict between environmental history and widely held romanticized views of the region. Wohl grew up in Ohio, subscribing to a common perception of the American West as an unchanged frontier. Moving to Arizona, she became enthralled with how the landscapes and ecosystems of the West have undergone change, both through geologic time and during the historical era of European settlement.These essays tell of her early training as a geomorphologist and provide a memorable account of her research in the rivers of the West. As the lessons accrue, Wohl gives us the benefit of her experience and shows how years of studying and living in the Colorado Rockies have enhanced her understanding of landscape change through time. Building on the literary tradition of Joseph Wood Krutch, Terry Tempest Williams, and John McPhee, Wohl provides an up-to-date portrait of the West and brings a new urgency to the call for conservation of the region's land, water, and resources.
Island of Grass

Island of Grass

Ellen E. Wohl

University Press of Colorado
2009
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Island of Grass tells the story of the Cathy Fromme Prairie Natural Area, a 240-acre preserve surrounded by housing developments in Fort Collins, Colorado. This small grassland is a remnant of the once-vast prairies of the West that early European explorers and settlers described as seas of grass.Agricultural land use and urban expansion during the past two centuries have fragmented and altered these prairies. All that remains today are small islands. These remnants cannot support some of the larger animals that once roamed the prairie, but they continue to support a diverse array of plants and animals and can still teach us much about grassland ecology. Through her examinations of daily changes during walks across the Fromme Prairie over the course of a year, Ellen Wohl explores one of the more neglected ecosystems in North America, describing the geology, soils, climate, ecology, and natural history of the area, as well as providing glimpses into the lives of the plants, animals, and microbes inhabiting this landscape. Although small in size, pieces of preserved shortgrass prairie like the Cathy Fromme Prairie Natural Area are rich, diverse, and accessible natural environments deserving of awareness, appreciation, and protection. Anyone concerned with the ecology and conservation of grasslands in general, the ecology and conservation of open space in urban areas, or the natural history of Colorado will be interested in this book.
Wide Rivers Crossed

Wide Rivers Crossed

Ellen E. Wohl

University Press of Colorado
2013
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In Wide Rivers Crossed, Ellen Wohl tells the stories of two rivers—the South Platte on the western plains and the Illinois on the eastern—to represent the environmental history and historical transformation of major rivers across the American prairie. Wohl begins with the rivers’ natural histories, including their geologic history, physical characteristics, ecological communities, and earliest human impacts, and follows a downstream and historical progression from the use of the rivers’ resources by European immigrants through increasing population density of the twentieth century to the present day. During the past two centuries, these rivers changed dramatically, mostly due to human interaction. Crops replaced native vegetation; excess snowmelt and rainfall carried fertilizers and pesticides into streams; and levees, dams, and drainage altered distribution. These changes cascaded through networks, starting in small headwater tributaries, and reduced the ability of rivers to supply the clean water, fertile soil, and natural habitats they had provided for centuries. Understanding how these rivers, and rivers in general, function and how these functions have been altered over time will allow us to find innovative approaches to restoring river ecosystems. The environmental changes in the South Platte and the Illinois reflect the relentless efforts by humans to control the distribution of water: to enhance surface water in the arid western prairie and to limit the spread of floods and drain the wetlands along the rivers in the water-abundant east. Wide Rivers Crossed looks at these historical changes and discusses opportunities for much-needed protection and restoration for the future.
Transient Landscapes

Transient Landscapes

Ellen E. Wohl

University Press of Colorado
2015
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Landscape—the unique combination of landforms, plants, animals, and weather that compose any natural place—is inherently transient. Each essay in Transient Landscapes introduces this idea of a constantly metamorphosing global landscape, revealing how to see the ubiquity of landscape transience, both that which results through Earth’s natural environmental and climatological processes and that which comes from human intervention. The essays are grouped by type of environmental change: long-term, large-scale transformation driven by geologic forces such as tectonic uplift and volcanism; natural variability at shorter time scales, such as seasonal flooding; and modifications resulting from human activities, such as timber harvest, land drainage, and pollution. Each essay is set in a unique geographic location—including such diverse places as New Zealand, Northern California, Costa Rica, and the Scottish Highlands—and is largely drawn from Wohl’s personal experience researching in the field. A combination of travel writing, nature writing, and science writing, Transient Landscapes is a beautiful and thoughtful journey through the natural world.