Soil as a Factor Influencing Distribution of Vegetation in the Sandhills of Nebraska PDF Download
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Author: Donald F. Burzlaff
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 312
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Author: Donald F. Burzlaff
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 312
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Author: Paul A. Johnsgard
Publisher: U of Nebraska Press
ISBN: 9780803225787
Category : Science
Languages : en
Pages : 280
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Book Description
The Nebraska Sandhills is the largest area of sand dunes in the western hemisphere, covering an area about as large as Vermont, New Hampshire, and Rhode Island combined. Unlike most dunes, the Sandhills region supports an astonishing variety of wildlife. Sixty million years ago the area lay submerged in a vast inland sea. As the land lifted and the waters receded, the sandhills were formed, built upon a sandy floor above a sandy basement. Paul A. Johnsgard's appreciation for the region includes its evolution, a process that continues today making a very special place, patiently shaped by water, wind, and time. Sometimes 450 feet higher than their sloping valleys, the hills themselves are almost entirely covered with plants that manage to survive on an unstable substrate and in a climate of merciless heat and cold. They provide homes and resting places for rare species and sustain the livelihoods of a remarkable variety of people. Though firmly established in science, this book is an extended love letter to the Sandhills region and its people, plants, and animals. Johnsgard is now in his third decade of research in the Sandhills. This Fragile Land lets others see what he sees, a land with a fascinating range of geological, biological, and ecological vistas. Paul A. Johnsgard is Foundation Professor of the School of Biological Sciences at the University of Nebraska-Lincoln. Widely published throughout the English-speaking world, he has become a foremost authority on ornithology and bird behavior. His thirty-three books include Birds of the Great Plains, The Platte, Birds of the Rocky Mountains, Those of the Gray Wind, and Diving Birds of North America, all available from the University ofNebraska Press.
Author: Barry C. Johnston
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 414
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Author:
Publisher:
ISBN:
Category : Grain
Languages : en
Pages : 56
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Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 36
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Author: Shad D. Mills
Publisher:
ISBN:
Category : Fertilization of plants
Languages : en
Pages : 63
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Vegetation along roadsides is important to prevent soil erosion, provide habitat and filter water running off the road. Along some highways in Nebraska vegetation does not readily establish and persist. It is thought that sodium and bulk density issues are the driving factor behind the lack of vegetation. After a construction project, the shoulder is seeded into the compacted soil, and salts can accumulate in the soil due to deicing agents being used during the winter. The purpose of our study was to determine if the bulk density and sodium are the driving factors of the vegetation cover. We also evaluated how shoulder type and time since seeding affected these soil issues and vegetation cover. The study was conducted by collecting soil samples and identifying vegetation cover from 53 sites in three different regions, the Panhandle, Southcentral and Southeast regions, in Nebraska, USA. The soil was analyzed for pH, electrical conductivity, sodium, chloride, and bulk density. At each site, vegetation was designated into one of four categories, bare ground (>70%), annual vegetation (>70%), perennial vegetation (>50%), and bare ground-annual vegetation mix (~50-50% mix). It was found that sodium and compaction issues had little effect on the establishment and persistence of vegetation. Over half of the sites had high soil sodium levels at both the 0-10 and 10-20 cm depths. The bulk density was found to be normal in the Panhandle and slightly high in the Southcentral and Southeast. The shoulder and time since seeding showed limited effect on the soil variables measured. Although tested soil factors did not have large magnitude in influencing vegetation cover, we suggest post-seeding factors such as snowplows, mowing and traffic could have contributed to the lack of vegetation along highways.
Author: Arnold J. Heerwagen
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 36
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Book Description
Publications listed in this bibliography describe natural plant communities in the States of: Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, North Dakota, South Dakota, and Wisconsin. Only those studies actually conducted in these States and those studies for larger areas but specifically referring to plant communities in the States listed are included.
Author: University of Nebraska (Lincoln campus). Agricultural Experiment Station
Publisher:
ISBN:
Category :
Languages : en
Pages : 742
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Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 558
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Author: Nanette Eileen Rayapati Erickson
Publisher:
ISBN:
Category :
Languages : en
Pages : 366
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