Download or read book Santa Cruz River Paseo de Las Iglesias Pima County Arizona written by and published by . This book was released on 2005 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Plant World written by and published by . This book was released on 1911 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Department Bulletin written by United States. Department of Agriculture and published by . This book was released on 1917 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Ribbon of Green written by Robert H. Webb and published by University of Arizona Press. This book was released on 2007 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: Woody wetlands constitute a relatively small but extremely important part of the landscape in the southwestern United States. These riparian habitats support more than one-third of the regionÕs vascular plant species, are home to a variety of wildlife, and provide essential havens for dozens of migratory animals. Because of their limited size and disproportionately high biological value, the goal of protecting wetland environments frequently takes priority over nearly all other habitat types. In The Ribbon of Green, hydrologists Robert H. Webb, and Stanley A. Leake and botanist Raymond M. Turner examine the factors that affect the stability of woody riparian vegetation, one of the largest components of riparian areas. Such factors include the diversion of surface water, flood control, and the excessive use of groundwater. Combining repeat photography with historical context and information on species composition, they document more than 140 years of change. Contrary to the common assumption of widespread losses of this type of ecosystem, the authors show that vegetation has increased on many river reaches as a result of flood control, favorable climatic conditions, and large winter floods that encourage ecosystem disturbance, germination, and the establishment of species in newly generated openings. Bringing well-documented and accessible insights to the ecological study of wetlands, this book will influence our perception of change in riparian ecosystems and how riparian restoration is practiced in the Southwest, and it will serve as an important reference in courses on plant ecology, riparian ecology, and ecosystem management.

Download or read book Plant Indicators written by Frederic Edward Clements and published by . This book was released on 1920 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecology of Sonoran Desert Plants and Plant Communities written by Robert H. Robichaux and published by University of Arizona Press. This book was released on 2023-01-17 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Sonoran Desert is a distinctive biotic region that fascinates scientist, students, and nature lovers. This book offers an accessible introduction to Sonoran Desert ecology. Eight original essays by Sonoran Desert specialists provide an overview of the practice of ecology at landscape, community, and organismal scales. The essays explore the rich diversity of plant life in the Sonoran Desert and the ecological patterns and processes that underlie it. They also reveal the history and scientific legacy of the Desert Laboratory in Tucson, which has conducted research on the Sonoran Desert since 1903. Coverage includes diversity and affinities of the flora, physical environments and vegetation, landscape complexity and ecological diversity, population dynamics of annual plants, form and function of cacti, and the relationship between plants and the animals that use them as feeding and breeding resources. The text also examines the ecological consequences of modern agricultural development, as well as the impact on the modern biota of 40,000 years of change in climate, vegetation, megafauna, and ancient cultures. This comprehensive book covers a broad range of spatial and temporal scales to highlight the diversity of research being pursued in the Sonoran Desert. It is both a testament to these ongoing studies and an authoritative introduction to the diverse plant life in the region. Contents 1. Diversity and Affinities of the Flora of the Sonoran Floristic Province, Steven P. McLaughlin and Janice E. Bowers 2. Vegetation and Habitat Diversity at the Southern Edge of the Sonoran Desert, Alberto Bórquez, Angelina Martínez Yrízar, Richard S. Felger, and David Yetman 3. The Sonoran Desert: Landscape Complexity and Ecological Diversity, Joseph R. McAuliffe 4. Population Ecology of Sonoran Desert Annual Plants, D. Lawrence Venable and Catherine E. Pake 5. Form and Function of Cacti, Park S. Nobel and Michael E. Loik 6. Ecological Genetics of Cactophilic Drosophila, William J. Etges, W. R. Johnson, G. A. Duncan, G. Huckins, and W. B. Heed 7. Ecological Consequences of Agricultural Development in a Sonoran Desert Valley, Laura L. Jackson and Patricia W. Comus 8. Deep History and a Wilder West, Paul S. Martin

Download or read book Biologia Centrali Americana written by and published by . This book was released on 1887 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of the Chief of the Plant Quarantine and Control Administration written by United States. Bureau of Plant Quarantine and published by . This book was released on 1932 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book People and plants in ancient western North America written by Paul E. Minnis and published by University of Arizona Press. This book was released on with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book International Conference on Plant Hardiness Acclimatization Proceedings written by Horticultural Society of New York and published by . This book was released on 1904 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the International Conference on Plant Hardiness and Acclimatization 1907 written by International conference on plant hardiness and acclimatization and published by . This book was released on 1910 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rural Californian written by and published by . This book was released on 1908 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Memoirs Proceedings of the International conference on plant hardiness and acclimatization 1907 written by and published by . This book was released on 1910 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report on a Collection of Plants from the Pinacate Region of Sonora written by Joseph Nelson Rose and published by . This book was released on 1912 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bulletin from the Laboratories of Natural History of the State University of Iowa written by University of Iowa and published by . This book was released on 1899 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Requiem for the Santa Cruz written by Robert H. Webb and published by University of Arizona Press. This book was released on 2021-11-30 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: In prehistoric times, the Santa Cruz River in what is now southern Arizona saw many ebbs, flows, and floods. It flowed on the surface, meandered across the floodplain, and occasionally carved deep channels or arroyos into valley fill. Groundwater was never far from the surface, in places outcropping to feed marshlands or ciénegas. In these wet places, arroyos would heal quickly as the river channel revegetated, the thriving vegetation trapped sediment, and the channel refilled. As readers of Requiem for the Santa Cruz learn, these aridland geomorphic processes also took place in the valley as Tucson grew from mud-walled village to modern metropolis, with one exception: historical water development and channel changes proceeded hand in glove, each taking turns reacting to the other, eventually lowering the water table and killing a unique habitat that can no longer recover or be restored. Authored by an esteemed group of scientists, Requiem for the Santa Cruz thoroughly documents this river—the premier example of historic arroyo cutting during the late nineteenth and early twentieth centuries, when large floodflows cut down through unconsolidated valley fill to form deep channels in the major valleys of the American Southwest. Each chapter provides a unique opportunity to chronicle the arroyo legacy, evaluate its causes, and consider its aftermath. Using more than a collective century of observations and collections, the authors reconstruct the circumstances of the river’s entrenchment and the groundwater mining that ultimately killed the marshlands, a veritable mesquite forest, and a birdwatcher's paradise. Today, communities everywhere face this conundrum: do we manage ephemeral rivers through urban areas for flood control, or do we attempt to restore them to some previous state of perennial naturalness? Requiem for the Santa Cruz carefully explores the legacies of channel change, groundwater depletion, flood control, and nascent attempts at river restoration to give a long-term perspective on management of rivers in arid lands. Tied together by authors who have committed their life’s work to the study of aridland rivers, this book offers a touching and scientifically grounded requiem for the Santa Cruz and every southwestern river.

Download or read book Bulletin written by U.S. Bureau of plant industry and published by . This book was released on 1904 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: